Cold rolled narrow steel strip for heat treatment - Technical delivery conditions

This document specifies the technical delivery conditions for cold rolled narrow steel strip made of non alloy and alloy steel grades in the form of coils and cut lengths in rolling widths less than 600 mm. Cold rolled narrow steel strip is available in grades of case hardening steel and of steels for quenching and tempering for general and special applications particularily springs.
—   Case hardening steels in thicknesses up to and including 10 mm;
—   Steels for quenching and tempering in thicknesses up to and including 6 mm in the conditions annealed (+A), annealed and skin passed (+LC) or cold rolled (+CR);
—   Steels in the quenched and tempered condition (+QT) in thicknesses between 0,30 mm and 3,00 mm.
In special cases supplementary requirements or deviations with respect to this document can be agreed between the purchaser and the supplier at the time of enquiry and order (see 5.2 and Annex A).
In addition to the requirements of this document, the general technical delivery requirements specified in EN 10021 apply.
This document does not cover cold rolled flat products for which separate standards exist, e.g.:
—   Cold rolled uncoated low carbon steel narrow strip for cold forming (EN 10139);
—   Cold rolled steel flat products with higher yield strength for cold forming (EN 10268).

Kaltband aus Stahl für eine Wärmebehandlung - Technische Lieferbedingungen

Dieses Dokument legt die technischen Lieferbedingungen für unlegiertes und legiertes Kaltband aus Stahl, hergestellt in Form von Coils und Kaltband in Stäben, in Walzbreiten kleiner als 600 mm fest. Kaltband ist verfügbar in Stahlsorten zum Einsatzhärten und zum Vergüten für allgemeine und besondere Anwendungen, insbesondere auch für Federn.
   Einsatzstähle in Dicken bis einschließlich 10 mm;
   Vergütungsstähle in Dicken bis einschließlich 6 mm in den Zuständen weichgeglüht (+A), weichgeglüht und leicht nachgewalzt (+LC) oder kaltgewalzt (+CR);
   Stähle im Vergütungszustand (+QT) in Dicken zwischen 0,30 mm und 3,00 mm.
In besonderen Fällen können Zusatzanforderungen oder Abweichungen bezüglich dieses Dokumentes zwischen Besteller und Lieferer bei der Anfrage und Bestellung vereinbart werden. (siehe 5.2 und Anhang A).
Zusätzlich zu den Angaben dieses Dokumentes gelten die allgemeinen technischen Lieferbedingungen nach EN 10021.
Dieses Dokument umfasst nicht kaltgewalzte Flacherzeugnisse für die eigene Normen vorliegen, z. B.:
   Kaltband ohne Überzug aus weichen Stählen zum Kaltumformen (EN 10139);
   kaltgewalzte Flacherzeugnisse aus Stählen mit hoher Streckgrenze zum Kaltumformen (EN 10268).

Feuillards laminés à froid pour traitement thermique - Conditions techniques de livraison

Le présent document spécifie les conditions techniques de livraison des feuillards laminés à froid constitués de nuances d’aciers alliés et non alliés, se présentant sous forme de bobines et de feuillards coupés à longueur dont la largeur de laminage est inférieure à 600 mm. Les feuillards laminés à froid sont disponibles dans des nuances d’aciers pour cémentation et pour trempe et revenu destinées à des applications générales et spéciales, notamment pour les ressorts.
—   aciers pour cémentation d’épaisseur inférieure ou égale à 10 mm ;
—   aciers pour trempe et revenu d’épaisseur inférieure ou égale à 6 mm à l’état recuit (+A), recuit et skin-passé (+LC) ou laminé à froid (+CR) ;
—   aciers à l’état trempé et revenu (+QT) d’épaisseur comprise entre 0,30 mm et 3,00 mm.
Dans des cas spéciaux, l’acheteur et le fournisseur peuvent, au moment de l’appel d’offres et de la commande, convenir d’exigences supplémentaires ou de divergences par rapport au présent document (voir 5.2 et l’Annexe A).
Outre les exigences du présent document, les exigences  relatives aux conditions techniques générales de livraison spécifiées dans l’EN 10021 s’appliquent.
Le présent document ne traite pas des produits plats laminés à froid pour lesquels il existe des normes séparées, par exemple :
—   feuillards non revêtus laminés à froid en aciers à bas carbone pour formage à froid (EN 10139) ;
—   produits plats laminés à froid à haute limite d’élasticité pour formage à froid (EN 10268).

Hladno valjani ozki jekleni trakovi za toplotno obdelavo - Tehnični dobavni pogoji

General Information

Status
Published
Public Enquiry End Date
21-Oct-2020
Publication Date
26-Sep-2021
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
22-Sep-2021
Due Date
27-Nov-2021
Completion Date
27-Sep-2021

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Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 10132:2021
01-november-2021
Nadomešča:
SIST EN 10132-1:2000
SIST EN 10132-2:2000
SIST EN 10132-3:2001
SIST EN 10132-4:2001
SIST EN 10132-4:2001/AC:2004

Hladno valjani ozki jekleni trakovi za toplotno obdelavo - Tehnični dobavni pogoji

Cold rolled narrow steel strip for heat treatment - Technical delivery conditions

Kaltband aus Stahl für eine Wärmebehandlung - Technische Lieferbedingungen

Feuillards laminés à froid pour traitement thermique - Conditions techniques de livraison

Ta slovenski standard je istoveten z: EN 10132:2021
ICS:
77.140.10 Jekla za toplotno obdelavo Heat-treatable steels
77.140.50 Ploščati jekleni izdelki in Flat steel products and semi-
polizdelki products
SIST EN 10132:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 10132:2021
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SIST EN 10132:2021
EN 10132
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2021
EUROPÄISCHE NORM

ICS 77.140.10; 77.140.25; 77.140.50 Supersedes EN 10132-1:2000, EN 10132-2:2000, EN

10132-3:2000, EN 10132-4:2000
English Version
Cold rolled narrow steel strip for heat treatment -
Technical delivery conditions

Feuillards laminés à froid pour traitement thermique - Kaltband aus Stahl für eine Wärmebehandlung -

Conditions techniques de livraison Technische Lieferbedingungen
This European Standard was approved by CEN on 18 July 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10132:2021 E

worldwide for CEN national Members.
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SIST EN 10132:2021
EN 10132:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 4

2 Normative references .................................................................................................................................... 4

3 Terms and definitions ................................................................................................................................... 5

4 Classification and designation .................................................................................................................... 5

4.1 Classification ..................................................................................................................................................... 5

4.2 Designation........................................................................................................................................................ 5

5 Information to be supplied by the purchaser ....................................................................................... 5

5.1 Mandatory information ................................................................................................................................ 5

5.2 Options ................................................................................................................................................................ 6

5.3 Ordering examples ......................................................................................................................................... 6

6 Manufacturing process .................................................................................................................................. 7

6.1 General ................................................................................................................................................................ 7

6.2 Deoxidation ....................................................................................................................................................... 7

6.3 Delivery conditions ........................................................................................................................................ 7

6.4 Traceability of the cast .................................................................................................................................. 7

7 Requirements ................................................................................................................................................... 7

7.1 Chemical composition and mechanical properties ............................................................................. 7

7.2 Grain size ............................................................................................................................................................ 8

7.3 Surface characteristics .................................................................................................................................. 8

7.4 Non-metallic inclusions ................................................................................................................................ 9

7.5 Decarburisation ............................................................................................................................................... 9

7.6 Spheroidisation of carbides ..................................................................................................................... 10

7.7 Nominal dimensions, and tolerances on dimensions and shape ................................................ 10

8 Inspection ....................................................................................................................................................... 10

8.1 Types of inspection and inspection documents ................................................................................ 10

8.2 Content of inspection documents ........................................................................................................... 10

8.3 Summary of inspection .............................................................................................................................. 10

9 Sampling .......................................................................................................................................................... 11

9.1 Selection and preparation of samples for the product analysis.................................................. 11

9.2 Location of samples, orientation of tensile test pieces and preparation of tensile test

pieces ................................................................................................................................................................ 11

10 Test methods ................................................................................................................................................. 11

10.1 Chemical analysis ......................................................................................................................................... 11

10.2 Tensile test ..................................................................................................................................................... 12

10.3 Hardness test ................................................................................................................................................. 12

10.4 Retests .............................................................................................................................................................. 12

11 Surface protection, coiling, packaging and marking ....................................................................... 12

11.1 Surface protection........................................................................................................................................ 12

11.2 Coiling and bundling ................................................................................................................................... 12

11.3 Packaging and marking ............................................................................................................................. 12

Annex A (normative) Supplementary or special requirements ............................................................... 22

Bibliography ................................................................................................................................................................. 24

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SIST EN 10132:2021
EN 10132:2021 (E)
European foreword

This document (EN 10132:2021) has been prepared by Technical Committee CEN/TC 459/SC 5 “Steels

for heat treatment, alloy steels, free-cutting steels and stainless steels”, the secretariat of which is held

by DIN.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by March 2022, and conflicting national standards shall

be withdrawn at the latest by March 2022.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 10132-1:2000, EN 10132-2:2000, EN 10132-3:2000, EN 10132-4:2000.

The main changes with respect to the previous editions of EN 10132-1:2000 to EN 10132-4:2000 are

listed below:
a) the four parts of the previous edition were merged to one standard EN 10132;

b) following steel grades were deleted in part 3: C30E, 25Mn4 and in part 4 48Si7;

c) following steel grades were added: Steel grades for quenching and tempering C25E, 20MnB5,

27MnCrB5-2, 50CrMo4, Steels grades for springs C80S, 75Cr1, 95Cr1, 58CrV4, 68CrNiMo3-3;

d) steel grade C25E was added since it could replace C22E in future;

e) the chemical composition of the steel grades for case hardening and steel grades for quenching and

tempering were adapted to standards EN ISO 683-1 to EN ISO 683-3;

f) the mechanical properties of the steels for quenching and tempering and of the spring steels were

partially updated;

g) the requirements concerning the surface characteristics were completely revised;

h) inspection certificate 3.1 is mandatory;
i) standard completely editorially revised.

Any feedback and questions on this document should be directed to the users’ national standards body.

A complete listing of these bodies can be found on the CEN website.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
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SIST EN 10132:2021
EN 10132:2021 (E)
1 Scope

This document specifies the technical delivery conditions for cold rolled narrow steel strip made of non

alloy and alloy steel grades in the form of coils and cut lengths in rolling widths less than 600 mm. Cold

rolled narrow steel strip is available in grades of case hardening steel and of steels for quenching and

tempering for general and special applications particularily springs.
— Case hardening steels in thicknesses up to and including 10 mm;

— steels for quenching and tempering in thicknesses up to and including 6 mm in the conditions

annealed (+A), annealed and skin passed (+LC) or cold rolled (+CR);

— steels in the quenched and tempered condition (+QT) in thicknesses between 0,30 mm and

3,00 mm.

In special cases supplementary requirements or deviations with respect to this document can be agreed

between the purchaser and the supplier at the time of enquiry and order (see 5.2 and Annex A).

In addition to the requirements of this document, the general technical delivery requirements specified

in EN 10021 apply.

This document does not cover cold rolled flat products for which separate standards exist, e.g.:

— cold rolled uncoated low carbon steel narrow strip for cold forming (EN 10139);

— cold rolled steel flat products with higher yield strength for cold forming (EN 10268).

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

EN 10020, Definition and classification of grades of steel
EN 10021, General technical delivery conditions for steel products
EN 10027-1, Designation systems for steels - Part 1: Steel names
EN 10027-2, Designation systems for steels - Part 2: Numerical system

EN 10049, Measurement of roughness average Ra and peak count RPc on metallic flat products

EN 10079, Definition of steel products
EN 10140, Cold rolled narrow steel strip - Tolerances on dimensions and shape
EN 10204, Metallic products - Types of inspection documents

EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanical

testing (ISO 377)

EN ISO 643, Steels - Micrographic determination of the apparent grain size (ISO 643)

EN ISO 3887, Steels - Determination of the depth of decarburization (ISO 3887)
EN ISO 4885, Ferrous materials - Heat treatments - Vocabulary (ISO 4885)
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SIST EN 10132:2021
EN 10132:2021 (E)

EN ISO 6507-1, Metallic materials - Vickers hardness test - Part 1: Test method (ISO 6507-1)

EN ISO 6508-1, Metallic materials - Rockwell hardness test - Part 1: Test method (ISO 6508-1)

EN ISO 6892-1:2019, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO

6892-1:2019)

EN ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemical

composition (ISO 14284)
3 Terms and definitions

For the purposes of this document, the following terms and definitions in EN 10020, EN 10021,

EN 10079, EN ISO 377, EN ISO 4885 and EN ISO 14284 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
production lot

products from the same cast, with the same thickness and the same heat-treatment cycle

4 Classification and designation
4.1 Classification

The classification of the relevant steel grades is allocated in accordance with EN 10020. All steel grades

according to Table 4 are non alloy special steels. All steel grades according to Table 5 are alloy special

steels.
4.2 Designation

For the steel grades covered by this document, the steel names and numbers given in the relevant tables

shall be allocated in accordance with EN 10027-1 and EN 10027-2.
5 Information to be supplied by the purchaser
5.1 Mandatory information

The following information shall be supplied by the purchaser at the time of enquiry and order to enable

the supplier to comply with the requirements of this document:
a) the quantity to be delivered;

b) the designation of the product form (cold rolled narrow strip in coils or cold rolled narrow strip in

cut lengths);

c) the number of the standard for tolerances on dimensions and shape (EN 10140);

d) the dimensions and tolerances on dimensions and shape and in the case of cut lengths, the length in

millimetres, and, if applicable, letters denoting relevant special tolerances;
e) the number of this document;
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SIST EN 10132:2021
EN 10132:2021 (E)
f) steel name or steel number (see 4.2);
g) the delivery condition (see 6.3);

h) the tolerance for tensile strength or hardness, for delivery condition CR and QT;

i) the surface appearance and the surface finish (see 7.3).
5.2 Options

A number of options are specified in this document and listed below. If the purchaser does not indicate

any of these options, the products will be supplied in accordance with the basic specification of this

document (see 5.1):

1) requirements concerning other types of edges than the usually delivered slit edges:

GK = geschnittene Kanten, engl. slit edges, NK = Naturkanten, engl. mill edges, SK = Sonderkanten,

engl. special edges;

2) verification of the chemical composition with product analysis (see 7.1.2, 9.1 and 10.1);

3) verification of the roughness of the surface (see 7.3, Table 2 and A.7)
4) special requirements concerning bend test (see 7.1.3 and A.2);

5) special requirements relating to grain size and verification (see 7.2 and A.3);

6) requirements concerning non-metallic inclusions and verification (see 7.4 and A.4);

7) requirements concerning the depth of decarburisation and verification (see 7.5 and A.5);

8) requirements concerning the spheroidisation of carbides and verification (see 7.6 and A.6);

9) requirements concerning protection during transport and handling (see 11.1);

10) requirements on dimension(s) and/or mass of coils and in the case of cut lengths on the mass of the

bundles (see 11.2);
11) requirements on the method of packaging (see 11.3);

12) special requirements on marking including bar coding and labelling (see 11.3).

5.3 Ordering examples

EXAMPLE 1 5 tons of cold rolled narrow strip according to EN 10140 with a nominal thickness of 1,50 mm

normal tolerances on thickness, with a nominal width of 200 mm with slit edges (GK), normal tolerances on width

according to this document made of steel grade C10E in light skin passed condition (+LC) with a bright uniform

surface appearance (MB) and a matt surface finish (RM) and an inspection certificate 3.1:

5 tons cold rolled narrow strip EN 10140 – 1,50x200
EN 10132 – C10E+LC–MB–RM

EXAMPLE 2 10 tons of cold rolled narrow strip in cut lengths according to EN 10140 with a nominal thickness

of 2,00 mm, normal tolerances on thickness, with a nominal width of 450 mm with slit edges (GK), normal

tolerances on width, with nominal lengths of 3000 mm, normal tolerances on length, according to this document

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SIST EN 10132:2021
EN 10132:2021 (E)

made of steel grade C75S, in quenched and tempered condition (+QT), hardness tolerance 440 to 490 HV with a

bright tempered surface and an inspection certificate 3.1:
10 tons of cold rolled narrow strip in cut lengths EN 10140 – 2,00x450x3000
EN 10132 – C75S+QT – hardness 440 to 490 HV, bright tempered
6 Manufacturing process
6.1 General

The manufacturing process of the steel and of the products is, with the restrictions given by the

requirements in 6.2 and 6.4, left to the discretion of the manufacturer.
6.2 Deoxidation
All steels shall be deoxidized.
6.3 Delivery conditions

Cold rolled narrow steel strip shall be supplied in one of the following delivery conditions as indicated

in Table 7:
— annealed (+A);
— annealed and skin passed (+LC);
— cold rolled (+CR); or
— quenched and tempered (+QT).

The delivery condition – annealed to achieve spheroidised carbides (+AC) – may be agreed. In such

cases, limits on spheroidisation and mechanical properties may also be agreed at the time of enquiry

and order.

The condition cold rolled (+CR) can also be applied to annealed material. The condition quenched and

tempered (+QT) is aiming for a martensitic and/or bainitic structure. Specific structures may be agreed.

6.4 Traceability of the cast

The products shall be delivered by cast or part of a cast. Each product shall be traceable to the cast.

7 Requirements
7.1 Chemical composition and mechanical properties
7.1.1 General

The steel grades given in Tables 4 and 5 are delivered in the conditions as mentioned in 6.3. The

manufacturer is responsible, using the means he thinks fit, for controlling his production from the point

of view of the various quality criteria specified.
7.1.2 Chemical composition

The chemical composition determined by cast analysis shall comply with the values in Tables 4 and 5.

Permissible deviations between the limiting values for cast analysis and the values for product analysis

are given in Table 6.
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SIST EN 10132:2021
EN 10132:2021 (E)

The product analysis shall be carried out when specified at the time of enquiry and order (see 9.1 and

10.1).
7.1.3 Mechanical properties

The mechanical properties of the products are given in Table 7. The tensile test is the usual reference

test for the mechanical properties. If agreed at the time of enquiry and order, the hardness test with the

values given in Table 7 may be performed instead of the tensile test (and not both at the same time).

For the delivery conditions +CR and +QT the steels are supplied with tolerance on the tensile strength

with a range of 150 MPa or with tolerances on the hardness with a range of 50 HV as indicated by the

purchaser at the time of enquiry and order, see also Table 7, footnotes c and d.

For thicknesses outside this range mentioned in Clause 1, the mechanical properties shall be agreed

between the purchaser and the supplier.

Requirements for a bend test for steels in the annealed condition (+A) or annealed and skin passed

condition (+LC) may be agreed at the time of enquiry and order, see A.2

NOTE 1 For steels for quenching and tempering guidelines for the heat treatment and the minimum hardness

values in the quenched condition without tempering are shown in Table 8.

The steel may be quenched in water, oil or isothermally treated (e. g. metal bath), see Table 8.

NOTE 2 For those purchasers who specify Rockwell hardness rather than Vickers hardness or tensile strength,

Table 9 shows Rockwell hardness values for information.
7.2 Grain size

Unless otherwise agreed at the time of ordering, the grain size shall be left to the discretion of the

manufacturer. If a fine grain structure is required, the special requirement as detailed in A.3 shall be

ordered.
7.3 Surface characteristics

Surface characteristics relate to a) surface appearance, see Table 1, for delivery conditions +A or +LC or

+CR only and to b) surface finish, see Table 2 for all delivery conditions.

The appearences indicated in Table 1 for the conditions +A, +LC or +CR apply to the upper/outside

surface of coils and the upper/top surface of cut lengths. The appearance of the other side shall

correspond at least to surface appearance MA. These requirements to the appearances shall not apply

to the first two inner and outer laps of coil or to cut lengths cut from them.
Table 1 — Surface appearances for the conditions +A, +LC and +CR
Surface appearance
Symbol Characteristic Field of application Available surface finishes
(see Table 2)
MA Bright, metallic clean surface; pitting grooves All thicknesses and RR rough
and scratches are permitted delivery conditions
RM matt,
RL smooth
MB Bright, metallic clean surface; pitting grooves RM matt
Thicknesses ≤ 2,00 mm
and scratches are permitted as long as the
and all delivery conditions
RL smooth
uniform smooth appearance is not substantially
except +A
impaired when viewed with the naked eye

The supply of products of greater thicknesses with this surface appearance shall be agreed at the time of enquiry and

order.
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SIST EN 10132:2021
EN 10132:2021 (E)

Cold rolled flat products in conditions +A, +LC or +CR shall be ordered by the purchaser at the time of

enquiry and order with surface appearance MA or MB and the available surface finish as described in

Table 1 (see 5.1). If not specified in the order, the products in the conditions +A or +LC or +CR shall be

supplied with a surface appearance MA and a surface finish RL (Ra ≤ 0,6 μm).

Cold rolled flat products in condition +QT shall be ordered with one of the available surface finishes as

described in Table 2. If not specified in the order, the products shall be supplied in the condition oxide

finish. Due to the processing for cold rolled narrow steel strip in the condition +QT single scratches are

possible. The depth of such scratches measured in roughness Ra shall be lower than 15 µm.

Table 2 — Surface finishes
Surface finish Note Symbol Mean surface
roughness
Ra, µm
for conditions +A, +LC and +CR
rough – RR Ra ≥ 1,5 μm
matt – RM 0,6 μm < Ra ≤ 1,8 μm
smooth – RL Ra ≤ 0,6 μm
for condition +QT
oxide finish unpolished (e.g. –
grey/blue)
Ra ≤ 0,6 μm
bright unpolished –
tempered
polished obtained by fine grinding, –
abrasive brushing or
other processes
max. Ra value
may be agreed at the
polished and blue, yellow or other –
time of enquiry and
coloured colours obtained by
order
oxidization by heat
treatment or other
processes
7.4 Non-metallic inclusions

The steels shall have a degree of cleanliness corresponding to the special steel quality. The degree of

cleanliness and the verification may be agreed at the time of enquiry and order, see A.4.

7.5 Decarburisation

Independent of their heat treatment, all steels for quenching and tempering with a minimum carbon

content ≥ 0,50 % shall not have decarburisation levels exceeding the following limits when measured at

a distance of at least 10 mm from the strip edge:
— For non alloy steel grades max. 2 % of the material thickness per side;
for thicknesses lower than 0,20 mm: max. 4 µm per side;
— For alloy steel grades max. 3 % of the material thickness per side;
for thicknesses lower than 0,20 mm: max. 6 µm per side.
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SIST EN 10132:2021
EN 10132:2021 (E)
For verification see A.5.
7.6 Spheroidisation of carbides
If carbide spheroidisation is requested, reference shall be made to A.6.
7.7 Nominal dimensions, and tolerances on dimensions and shape

The nominal dimensions shall be agreed during enquiry and order. Unless otherwise agreed at the time

of enquiry and order, the tolerances on dimensions and shape shall conform to EN 10140, with the

exception of the width tolerances for strip in the quenched and tempered condition (+QT) which shall

be agreed between purchaser and supplier.

Special edges are available by agreement between supplier and purchaser, and the tolerances on width

for these edges are to be agreed.
8 Inspection
8.1 Types of inspection and inspection documents

Products complying with this document shall be delivered with specific inspection and an inspection

certificate 3.1 according to EN 10204 unless otherwise specified.
8.2 Content of inspection documents

8.2.1 The manufacturer shall carry out appropriate process control, inspection and testing to ensure

himself that the delivery complies with the requirements of the order. A statement on the conformity of

the products delivered with the requirements of this specification and the order shall be included in the

inspection certificate 3.1.

8.2.2 In accordance with 8.1 an inspection certificate 3.1 is to be provided. The specific inspections

and tests described in Clause 10 shall be carried out and the results shall be confirmed in the inspection

certificate. Optionally, the manufacturer can use the symbols of EN 10168:2004, Tables 1 and 2.

8.3 Summary of inspection

The amount of testing, the sampling conditions and the test methods to be applied for the verification of

the requirements shall be in accordance with Table 3. Verification of the mechanical properties shall be

carried out in the delivery condition.
Table 3 — Summary of inspection
Frequency of testing
Type of inspection and test according Refer to
to inspection certificate 3.1
Cast analysis One per cast 7.1.2
Tensile test or if agreed hardness
7.1.3, 10.2 and
test instead of tensile test in the One test per production lot
10.3
delivery condition
Mandatory
Frequency of verification left to
tests
Dimensional inspection 7.7
the manufacturer
Adequate intensity of visual
Visual examination examination of the surface 7.3
quality left to the manufacturer
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SIST EN 10132:2021
EN 10132:2021 (E)
Frequency of testing
...

SLOVENSKI STANDARD
oSIST prEN 10132:2020
01-oktober-2020

Hladno valjani ozki jekleni trakovi za toplotno obdelavo - Tehnični dobavni pogoji

Cold rolled narrow steel strip for heat treatment - Technical delivery conditions

Kaltband aus Stahl für eine Wärmebehandlung - Technische Lieferbedingungen

Feuillards laminés à froid pour traitement thermique - Conditions techniques de livraison

Ta slovenski standard je istoveten z: prEN 10132
ICS:
77.140.10 Jekla za toplotno obdelavo Heat-treatable steels
77.140.50 Ploščati jekleni izdelki in Flat steel products and semi-
polizdelki products
oSIST prEN 10132:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 10132:2020
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oSIST prEN 10132:2020
DRAFT
EUROPEAN STANDARD
prEN 10132
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2020

ICS 77.140.10; 77.140.25; 77.140.50 Will supersede EN 10132-1:2000, EN 10132-2:2000,

EN 10132-3:2000, EN 10132-4:2000
English Version
Cold rolled narrow steel strip for heat treatment -
Technical delivery conditions
Kaltband aus Stahl für eine Wärmebehandlung -
Technische Lieferbedingungen

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 459/SC 5.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations

which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other

language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC

Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 10132:2020 E

worldwide for CEN national Members.
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oSIST prEN 10132:2020
prEN 10132:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 4

2 Normative references .................................................................................................................................... 4

3 Terms and definitions ................................................................................................................................... 5

4 Classification and designation .................................................................................................................... 5

5 Information to be supplied by the purchaser ....................................................................................... 5

6 Manufacturing process .................................................................................................................................. 7

7 Requirements ................................................................................................................................................... 7

8 Inspection ....................................................................................................................................................... 10

9 Sampling .......................................................................................................................................................... 11

10 Test methods ................................................................................................................................................. 11

11 Surface protection, coiling, packaging and marking ....................................................................... 12

Annex A (normative) Supplementary or special requirements ............................................................... 21

A.1 General ............................................................................................................................................................. 21

A.2 Bend test .......................................................................................................................................................... 21

A.3 Fine grain structure..................................................................................................................................... 21

A.3.1 Verification of fine grain structure for case hardening steels ..................................................... 21

A.3.2 Verification of fine grain structure for steels for quenching and tempering ......................... 21

A.4 Microscopic non-metallic inclusions..................................................................................................... 21

A.5 Decarburisation ............................................................................................................................................ 22

A.6 Spheroidisation of carbides ..................................................................................................................... 22

A.7 Roughness ....................................................................................................................................................... 22

Bibliography ................................................................................................................................................................. 23

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oSIST prEN 10132:2020
prEN 10132:2020 (E)
European foreword

This document (prEN 10132:2020) has been prepared by Technical Committee CEN/TC 459/SC 5

“Steels for heat treatment, alloy steels, free-cutting steels and stainless steels”, the secretariat of which

is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 10132-1:2000, EN 10132-2:2000, EN 10132-3:2000,
EN 10132-4:2000.

The main changes with respect to the previous editions of EN 10132-1:2000 to EN 10132-4:2000 are

listed below:
a) The four parts of the previous edition were merged to one standard EN 10132;

b) Following steel grades were deleted in part 3: C30E, 25Mn4 and in part 4 48Si7;

c) Following steel grades were added: Steel grades for quenching and tempering C25E, 20MnB5,

27MnCrB5-2, 50CrMo4, Steels grades for springs C80S, 75Cr1, 95Cr1, 58CrV4, 68CrNiMo3-3;

d) Steel grade C25E was added since it could replace C22E in future;

e) The chemical composition of the steel grades for case hardening and steel grades for quenching and

tempering were adapted to standards EN ISO 683-1 to −3;

f) The mechanical properties of the steels for quenching and tempering and of the spring steels were

partially updated;

g) The requirements concerning the surface characteristics were completely revised;

h) Inspection certificate 3.1 is mandatory;
i) Standard completely editorially revised.
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1 Scope

This document specifies the technical delivery conditions for cold rolled narrow steel strip made of non

alloy and alloy steel grades in the form of coils and cut lengths in rolling widths less than 600 mm. Cold

rolled narrow steel strip is available in grades of case hardening steel and of steels for quenching and

tempering for general and special applications particularily springs.
— Case hardening steels in thicknesses up to and including 10 mm;

— Steels for quenching and tempering in thicknesses up to and including 6 mm in the conditions

annealed (+A), annealed and skin passed (+LC) or cold rolled (+CR);

— Steels in the quenched and tempered condition (+QT) in thicknesses between 0,30 mm and

3,00 mm.

In special cases supplementary requirements or deviations with respect to this document can be agreed

between the purchaser and the supplier at the time of enquiry and order (see 5.2 and Annex A).

In addition to the requirements of this document, the general technical delivery requirements specified

in EN 10021 apply.

This document does not cover cold rolled flat products for which separate standards exist, e.g.:

— Cold rolled uncoated low carbon steel narrow strip for cold forming (EN 10139);

— Cold rolled steel flat products with higher yield strength for cold forming (EN 10268).

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

EN 10020, Definition and classification of grades of steel
EN 10021, General technical delivery conditions for steel products
EN 10027-1, Designation systems for steels - Part 1: Steel names
EN 10027-2, Designation systems for steels - Part 2: Numerical system

EN 10049, Measurement of roughness average Ra and peak count RPc on metallic flat products

EN 10079, Definition of steel products
EN 10140, Cold rolled narrow steel strip - Tolerances on dimensions and shape
EN 10204, Metallic products - Types of inspection documents

EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanical

testing (ISO 377)

EN ISO 643, Steels - Micrographic determination of the apparent grain size (ISO 643)

EN ISO 3887, Steels - Determination of the depth of decarburization (ISO 3887)
EN ISO 4885, Ferrous materials - Heat treatments - Vocabulary (ISO 4885)
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EN ISO 6507-1, Metallic materials - Vickers hardness test - Part 1: Test method (ISO 6507-1)

EN ISO 6508-1, Metallic materials - Rockwell hardness test - Part 1: Test method (ISO 6508-1:2016)

EN ISO 6892-1:2019, Metallic materials – Tensile testing – Part 1: Method of test at room temperature

(ISO 6892-1:2019)

ISO 14284, Steel and iron — Sampling and preparation of samples for the determination of chemical

composition
3 Terms and definitions

For the purposes of this document, the following terms and definitions in EN 10020, EN 10021,

EN 10079, EN ISO 377, EN ISO 4885 and ISO 14284 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at http://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1
production lot

products from the same cast, with the same thickness and the same heat-treatment cycle

4 Classification and designation
4.1 Classification

The classification of the relevant steel grades is allocated in accordance with EN 10020. All steel grades

according to Table 4 are non alloy special steels. All steel grades according to Table 5 are alloy special

steels.
4.2 Designation

For the steel grades covered by this document, the steel names and numbers given in the relevant tables

shall be allocated in accordance with EN 10027-1 and EN 10027-2.
5 Information to be supplied by the purchaser
5.1 Mandatory information

The following information shall be supplied by the purchaser at the time of enquiry and order to enable

the supplier to comply with the requirements of this document:
a) the quantity to be delivered;

b) the designation of the product form (cold rolled narrow strip in coils or cold rolled narrow strip in

cut lengths);

c) the number of the standard for tolerances on dimensions and shape (EN 10140);

d) the dimensions and tolerances on dimensions and shape and in the case of cut lengths, the length in

millimetres, and, if applicable, letters denoting relevant special tolerances;
e) the number of this document;
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oSIST prEN 10132:2020
prEN 10132:2020 (E)
f) steel name or steel number (see 4.2);
g) the delivery condition (see 6.3);

h) the tolerance for tensile strength or hardness, for delivery condition CR and QT;

i) the surface appearance and the surface finish (see 7.3)
5.2 Options

A number of options are specified in this document and listed below. If the purchaser does not indicate

any of these options, the products will be supplied in accordance with the basic specification of this

document (see 5.1):

1) requirements concerning other types of edges than the usually delivered slit edges:

GK = geschnittene Kanten, engl. slit edges, NK = Naturkanten, engl. mill edges, SK = Sonderkanten,

engl. special edges;

2) verification of the chemical composition with product analysis (see 7.1.2, 9.1 and 10.1);

3) verification of the roughness of the surface (see 7.3, Table 2 and A.7)
4) special requirements concerning bend test (see 7.1.3 and A.2);

5) special requirements relating to grain size and verification (see 7.2 and A.3);

6) requirements concerning non-metallic inclusions and verification (see 7.4 and A.4);

7) requirements concerning the depth of decarburisation and verification (see 7.5 and A.5);

8) requirements concerning the spheroidisation of carbides and verification (see 7.6 and A.6);

9) requirements concerning protection during transport and handling (see 11.1);

10) requirements on dimension(s) and/or mass of coils and in the case of cut lengths on the mass of the

bundles (see 11.2);
11) requirements on the method of packaging (see 11.3);

12) special requirements on marking including bar coding and labelling (see 11.3).

5.3 Ordering examples

EXAMPLE 1 5 tons of cold rolled narrow strip according to EN 10140 with a nominal thickness of 1,50 mm

normal tolerances on thickness, with a nominal width of 200 mm with slit edges (GK), normal tolerances on width

according to this document made of steel grade C10E in light skin passed condition (+LC) with a bright uniform

surface appearance (MB) and a matt surface finish (RM) and an inspection certificate 3.1:

5 tons cold rolled narrow strip EN 10140 – 1,50x200
EN 10132 – C10E+LC–MB–RM

EXAMPLE 2 10 tons of cold rolled narrow strip in cut lengths according to EN 10140 with a nominal thickness

of 2,00 mm, normal tolerances on thickness, with a nominal width of 450 mm with slit edges (GK), normal

tolerances on width, with nominal lengths of 3000 mm, normal tolerances on length, according to this document

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made of steel grade C75S, in quenched and tempered condition (+QT), hardness tolerance 440 to 490 HV with a

bright tempered surface and an inspection certificate 3.1:
10 tons of cold rolled narrow strip in cut lengths EN 10140 – 2,00x450x3000
EN 10132 – C75S+QT – hardness 440 to 490 HV, bright tempered
6 Manufacturing process
6.1 General

The manufacturing process of the steel and of the products is, with the restrictions given by the

requirements in 6.2 and 6.4, left to the discretion of the manufacturer.
6.2 Deoxidation
All steels shall be deoxidized.
6.3 Delivery conditions

Cold rolled narrow steel strip shall be supplied in one of the following delivery conditions as indicated

in Table 7:
— annealed (+A);
— annealed and skin passed (+LC);
— cold rolled (+CR) or
— quenched and tempered (+QT).

The delivery condition – annealed to achieve spheroidised carbides (+AC) – may be agreed. In such

cases, limits on spheroidisation and mechanical properties may also be agreed at the time of enquiry

and order.

The condition cold rolled (+CR) can also be applied to annealed material. The condition quenched and

tempered (+QT) is aiming for a martensitic and/or bainitic structure. Specific structures may be agreed.

6.4 Traceability of the cast

The products shall be delivered by cast or part of a cast. Each product shall be traceable to the cast.

7 Requirements
7.1 Chemical composition and mechanical properties
7.1.1 General

The steel grades given in Tables 4 and 5 are delivered in the conditions as mentioned in 6.3. The

manufacturer is responsible, using the means he thinks fit, for controlling his production from the point

of view of the various quality criteria specified.
7.1.2 Chemical composition

The chemical composition determined by cast analysis shall comply with the values in Tables 4 and 5.

Permissible deviations between the limiting values for cast analysis and the values for product analysis

are given in Table 6.
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The product analysis shall be carried out when specified at the time of enquiry and order (see 9.1 and

10.1).
7.1.3 Mechanical properties

The mechanical properties of the products are given in Table 7. The tensile test is the usual reference

test for the mechanical properties. If agreed at the time of enquiry and order, the hardness test with the

values given in Table 7 may be performed instead of the tensile test (and not both at the same time).

For the delivery conditions +CR and +QT the steels are supplied with tolerance on the tensile strength

with a range of 150 MPa or with tolerances on the hardness with a range of 50 HV as indicated by the

purchaser at the time of enquiry and order, see also Table 7, footnotes c and d.

For thicknesses outside this range mentioned in Clause 1, the mechanical properties shall be agreed

between the purchaser and the supplier.

Requirements for a bend test for steels in the annealed condition (+A) or annealed and skin passed

condition (+LC) may be agreed at the time of enquiry and order, see A.2

NOTE 1 For steels for quenching and tempering guidelines for the heat treatment and the minimum hardness

values in the quenched condition without tempering are shown in Table 8.

The steel may be quenched in water, oil or isothermally treated (e.g. metal bath), see Table 8.

NOTE 2 For those purchasers who specify Rockwell hardness rather than Vickers hardness or tensile strength,

Table 9 shows Rockwell hardness values for information.
7.2 Grain size

Unless otherwise agreed at the time of ordering, the grain size shall be left to the discretion of the

manufacturer. If a fine grain structure is required, the special requirement as detailed in A.3 shall be

ordered.
7.3 Surface characteristics

Surface characteristics relate to a) surface appearance, see Table 1, for delivery conditions +A or +LC or

+CR only and to b) surface finish, see Table 2 for all delivery conditions.

The appearences indicated in Table 1 for the conditions +A, +LC or +CR apply to the upper/outside

surface of coils and the upper/top surface of cut lengths. The appearance of the other side shall

correspond at least to surface appearance MA. These requirements to the appearances shall not apply

to the first two inner and outer laps of coil or to cut lengths cut from them.
Table 1 — Surface appearances for the conditions +A, +LC and +CR
Surface appearance
Symbol Characteristic Field of application Available surface finishes
(see Table 2)
MA Bright, metallic clean surface; pitting grooves All thicknesses and RR rough
and scratches are permitted delivery conditions
RM matt,
RL smooth
MB Bright, metallic clean surface; pitting grooves a RM matt
Thicknesses ≤ 2,00 mm
and scratches are permitted as long as the
and all delivery conditions RL smooth
uniform smooth appearance is not substantially
except +A
impaired when viewed with the naked eye

The supply of products of greater thicknesses with this surface appearance shall be agreed at the time of enquiry and

order.
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Cold rolled flat products in conditions +A, +LC or +CR shall be ordered by the purchaser at the time of

enquiry and order with surface appearance MA or MB and the available surface finish as described in

Table 1 (see 5.1). If not specified in the order, the products in the conditions +A or +LC or +CR shall be

supplied with a surface appearance MA and a surface finish RL (Ra ≤ 0,6 μm).

Cold rolled flat products in condition +QT shall be ordered with one of the available surface finishes as

described in Table 2. If not specified in the order, the products shall be supplied in the condition oxide

finish. Due to the processing for cold rolled narrow steel strip in the condition +QT single scratches are

possible. The depth of such scratches measured in roughness Ra shall be lower than 15 µm.

Table 2 — Surface finishes
Surface finish Note Symbol Mean surface
roughness
Ra, µm
for conditions +A, +LC and +CR
rough – RR Ra ≥ 1,5 μm
matt – RM 0,6 μm < Ra ≤ 1,8 μm
smooth – RL Ra ≤ 0,6 μm
for condition +QT
oxide finish unpolished (e.g. –
grey/blue)
Ra ≤ 0,6 μm
bright unpolished –
tempered
polished obtained by fine grinding, –
abrasive brushing or
other processes
max. Ra value
may be agreed at the
polished and blue, yellow or other –
time of enquiry and
coloured colours obtained by
order
oxidization by heat
treatment or other
processes
7.4 Non-metallic inclusions

The steels shall have a degree of cleanliness corresponding to the special steel quality. The degree of

cleanliness and the verification may be agreed at the time of enquiry and order, see A.4.

7.5 Decarburisation

Independent of their heat treatment, all steels for quenching and tempering with a minimum carbon

content ≥ 0,50 % shall not have decarburisation levels exceeding the following limits when measured at

a distance of at least 10 mm from the strip edge:
— For non alloy steel grades max. 2 % of the material thickness per side;
for thicknesses lower than 0,20 mm: max. 4 µm per side;
— For alloy steel grades max. 3 % of the material thickness per side;
for thicknesses lower than 0,20 mm: max. 6 µm per side.
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For verification see A.5.
7.6 Spheroidisation of carbides
If carbide spheroidisation is requested, reference shall be made to A.6.
7.7 Nominal dimensions, and tolerances on dimensions and shape

The nominal dimensions shall be agreed during enquiry and order. Unless otherwise agreed at the time

of enquiry and order, the tolerances on dimensions and shape shall conform to EN 10140, with the

exception of the width tolerances for strip in the quenched and tempered condition (+QT) which shall

be agreed between purchaser and supplier.

Special edges are available by agreement between supplier and purchaser, and the tolerances on width

for these edges are to be agreed.
8 Inspection
8.1 Types of inspection and inspection documents

Products complying with this document shall be delivered with specific inspection and an inspection

certificate 3.1 according to EN 10204 unless otherwise specified.
8.2 Content of inspection documents

8.2.1 The manufacturer shall carry out appropriate process control, inspection and testing to ensure

himself that the delivery complies with the requirements of the order. A statement on the conformity of

the products delivered with the requirements of this specification and the order shall be included in the

inspection certificate 3.1.

8.2.2 In accordance with 8.1 an inspection certificate 3.1 is to be provided. The specific inspections

and tests described in Clause 10 shall be carried out and the results shall be confirmed in the inspection

certificate. Optionally, the manufacturer can use the symbols of EN 10168:2004, Tables 1 and 2.

8.3 Summary of inspection

The amount of testing, the sampling conditions and the test methods to be applied for the verification of

the requirements shall be in accordance with Table 3. Verification of the mechanical properties shall be

carried out in the delivery condition.
Table 3 — Summary of inspection
Frequency of testing
Type of inspection and test according Refer to
to inspection certificate 3.1
Cast analysis One per cast 7.1.2
Tensile test or if agreed hardness
7.1.3, 10.2 and
test instead of tensile test in the One test per production lot
10.3
delivery condition
Mandatory
Frequency of verification left to
tests
Dimensional inspection 7.7
the manufacturer
Adequate intensity of visual
Visual examination examination of the surface 7.3
quality left to the manufacturer
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Frequency of testing
Type of inspection and test according Refer to
to inspection certificate 3.1
Product analysis for the values 7.1.2, 9.1 and
one test per production lot
specified 10.1
Bend test in condition +A or +LC one test per production lot 7.1.3 and A.2
Verification of grain size one test per production lot 7.2 and A.3
7.3, Table 2 and
Optional
Verification of roughness one test per production lot
A.7
tests
Verification of non-metallic
one test per production lot 7.4 and A.4
inclusions
Verification of decarburisation one test per production lot 7.5 and A.5
Spheroidisation of carbides one test per production lot 7.6 and A.6
9 Sampling
9.1 Selection and preparation of samples for the product analysis

Samples for the product analysis, if required, shall be taken from the production lot. The selection and

preparation of the sample shall be in accordance with EN ISO 14284.

9.2 Location of samples, orientation of tensile test pieces and preparation of tensile test

pieces

The specifications of EN ISO 377 shall be observed in sampling and sample preparation. If agreed, the

samples may be taken before flattening.

The samples shall be taken from products in the delivery condition. A sample of adequate size for all the

tests to be carried out shall be taken from the product comprising the acceptance unit from any position

on the strip or cut lengths. In cases of dispute the samples shall be taken from a position at least 3 m

from one of the ends of the coil.

The tensile test pieces shall be taken from samples parallel to the direction in which the product was

rolled, in a position halfway between the centre and a longitudinal edge (see EN ISO 377). The test

pieces should not be further worked on either surface.

When cutting the test pieces from the sample, the deformation shall be minimized as far as possible. If

shears or cutting torches are used, an adequate surplus shall be allowed, which will then be further

worked.
10 Test methods
10.1 Chemical analysis

The choice of a suitable physical or chemical analytical method for the analysis shall be at the discretion

of the manufacturer. In cases of dispute, the method for the product analysis used shall be agreed taking

into account the relevant existing European Standards.

A list of available European Standards on chemical analysis is given in CEN/TR 10261.

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10.2 Tensile test

The tensile test shall be carried out in accordance with EN ISO 6892-1. The manufacturer may choose

between method A or B specified in EN ISO 6892-1 for the tensile test.

The test pieces shall always have a gauge length L = 80 mm and a width of 20 mm (test piece

number 2 of EN ISO 6892-1:2019, Annex B).
10.3 Hardness test

The hardness test shall be carried out in accordance with EN ISO 6507-1 (Vickers) or EN ISO 6508-1

(Rockwell).
10.4 Retests
For retests, EN 10021 shall apply.
11 Surface protection, coiling, packaging and marking
11.1 Surface protection

The products are normally supplied oiled. In this case, both sides are protected by a coat of non-drying

neutral oil, free from foreign bodies and spread uniformly so that under the normal packing, transport,

loading and storage conditions there will be no corrosion after three months. The oil film shall be

removable by an alkaline solution or other normal solvents.

If the transport and storage conditions make special corrosion protection necessary, the user shall

inform the manufacturer of this at the time of ordering. In this case the selection of protection oils shall

be the subject of a separate agreement.

If the products are supplied in the as-rolled condition, or without oil, there is an increased risk of

scratching and rust formation during transportation and storage.
11.2 Coiling and bundling

The internal/external diameter and/or the mass of the coil to be delivered shall be agreed during

ordering. In case of cut length the mass of the bundles shall be agreed during ordering.

In case of narrow widths,
...

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