Steel rod, bars and wire for cold heading and cold extrusion - Part 1: General technical delivery conditions

1.1   This Part of EN 10263 specifies the general technical delivery conditions for round rod, round bars and wire for cold heading and cold extrusion made of:
a)   non alloy steels not intended for heat treatment after cold working, as specified in prEN 10263-2:2013;
b)   non alloy and alloy steels for case hardening, as specified in prEN 10263-3:2013;
c)   non alloy and alloy steels for quenching and tempering, as specified in prEN 10263-4:2013;
d)   stainless steels, as specified in prEN 10263-5:2013.
1.2   Parts 2,3 and 4 of this EN 10263 cover products having a diameter up to and including 100 mm.
Part 5 covers products having a diameter up to and including:
-   25 mm for ferritic and austenitic-ferritic steels;
-   50 mm for austenitic steels;
-   100 mm for martensitic steels.
1.3   In special cases supplementary requirements or deviations with respect to this European Standard may be agreed between the purchaser and the supplier at the time of enquiry and order (See Annex A).
1.4   The general technical delivery conditions in EN 10021 also apply to products supplied in accordance with this European Standard

Walzdraht, Stäbe und Draht aus Kaltstauch-und Kaltfließpreßstählen - Teil 1: Allgemeine technische Lieferbedingungen

1.1   Dieser Teil von EN 10263 legt die allgemeinen technischen Lieferbedingungen fest für runden Walzdraht, runde Stäbe und Draht zum Kaltstauchen und Kaltfließpressen aus
a)   unlegierten, nicht für eine Wärmebehandlung nach der Kaltverarbeitung vorgesehenen Stählen nach prEN 10263-2:2013;
b)   unlegierten und legierten Einsatzstählen nach prEN 10263-3:2013;
c)   unlegierten und legierten Vergütungsstählen nach prEN 10263-4:2013;
d)   nichtrostenden Stählen nach prEN 10263-5:2013.
1.2   Die Teile 2, 3 und 4 von EN 10263 enthalten Erzeugnisse mit einem Durchmesser bis einschließlich 100 mm.
Teil 5 enthält Erzeugnisse mit einem Durchmesser bis einschließlich
-   25 mm bei ferritischen und austenitisch-ferritischen Stählen,
-   50 mm bei austenitischen Stählen,
-   100 mm bei martensitischen Stählen.
1.3   In Sonderfällen können zusätzliche Anforderungen oder Abweichungen von dieser Europäischen Norm zwischen Besteller und Lieferant bei der Anfrage und Bestellung vereinbart werden (siehe Anhang A).
1.4   Die allgemeinen technischen Lieferbedingungen nach EN 10021 gelten auch für nach dieser Europäischen Norm gelieferte Erzeugnisse.

Barres, fil machine et fils en acier pour transformation à froid et extrusion à froid - Partie 1: Conditions techniques générales de livraison

1.1   La présente partie de l'EN 10263 spécifie les conditions techniques générales de livraison du fil machine de section ronde, des barres rondes et du fil destinés à des opérations de déformation à froid (frappe à froid) et d'extrusion à froid et fabriqués dans les aciers suivants :
a)   aciers non alliés qui ne sont pas destinés à un traitement thermique après travail à froid, comme spécifiés dans l'prEN 10263-2 :2013 ;
b)   aciers alliés et non alliés de cémentation, comme spécifiés dans prEN 10263-3 :2013 ;
c)   aciers alliés et non alliés pour trempe et revenu, comme spécifiés dans prEN 10263-4 :2013 ;
d)   aciers inoxydables, comme spécifiés dans prEN 10263-5 :2013.
1.2   Les parties 2, 3 et 4 de la présente prEN 10263 traitent des produits ayant un diamètre inférieur ou égal à 100 mm.
La partie 5 traite des produits ayant un diamètre inférieur ou égal à :
-   25 mm, pour les aciers ferritiques et austéno-ferritiques ;
-   50 mm pour les aciers austénitiques ;
-   100 mm pour les aciers martensitiques.
1.3   Dans certains cas particuliers, il est possible de modifier les prescriptions techniques de livraison de la présente Norme Européenne ou d'en ajouter d'autres, sous réserve d'un accord entre l'acheteur et le fournisseur lors de l'appel d'offres et de la commande (voir annexe A).
1.4   Les conditions techniques générales de livraison de l'EN 10021 s'appliquent également aux produits fournis conformément à la présente Norme européenne.

Jekleni drogovi, palice in žica za hladno nakrčevanje in hladno iztiskanje - 1. del: Splošni tehnični dobavni pogoji

1.1 Ta del standarda EN 10263 določa splošne tehnične dobavne pogoje za okrogle drogove, okrogle palice ter žice za hladno nakrčevanje in hladno iztiskanje, izdelane iz:
a) nelegiranega jekla, ki ni namenjeno toplotni obdelavi po hladni predelavi, kot je določeno v dokumentu prEN 10263-2:2013;
b) nelegiranega in legiranega jekla za cementiranje, kot je določeno v dokumentu prEN 10263-3:2013;
c) nelegiranega in legiranega jekla za poboljšanje, kot je določeno v dokumentu prEN 10263-4:2013;
d) nerjavnega jekla, kot je določeno v dokumentu prEN 10263-5:2013.
1.2 2.,3. in 4. del tega standarda EN 10263 zajemajo proizvode s premerom največ 100 mm.
5. del zajema proizvode s premerom največ:
– 25 mm za feritna in avstenitno-feritna jekla;
– 50 mm za avstenitna jekla;
– 100 mm za martenzitna jekla.
1.3 V posebnih primerih se lahko kupec in dobavitelj v času poizvedbe oziroma naročila dogovorita o dodatnih zahtevah ali odstopanjih v zvezi s tem evropskim standardom (glej dodatek A).
1.4 Splošni tehnični dobavni pogoji v standardu EN 10021 se uporabljajo tudi za proizvode, dobavljene v skladu s tem evropskim standardom.

General Information

Status
Published
Publication Date
31-Oct-2017
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
01-Nov-2017
Completion Date
01-Nov-2017

RELATIONS

Buy Standard

Standard
EN 10263-1:2018
English language
26 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Walzdraht, Stäbe und Draht aus Kaltstauch-und Kaltfließpreßstählen - Teil 1: Allgemeine technische LieferbedingungenBarres, fil machine et fils en acier pour transformation à froid et extrusion à froid - Partie 1: Conditions techniques générales de livraisonSteel rod, bars and wire for cold heading and cold extrusion - Part 1: General technical delivery conditions77.140.65Jeklene žice, jeklene vrvi in verigeSteel wire, wire ropes and link chains77.140.60Jeklene palice in drogoviSteel bars and rodsICS:Ta slovenski standard je istoveten z:EN 10263-1:2017SIST EN 10263-1:2018en,fr,de01-februar-2018SIST EN 10263-1:2018SLOVENSKI

STANDARDSIST EN 10263-1:2002/AC:2003SIST EN 10263-1:20021DGRPHãþD
SIST EN 10263-1:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10263-1
November
t r s y ICS
y yä s v rä x râ
y yä s v rä x w Supersedes EN
s r t x uæ sã t r r sEnglish Version
Steel rodá bars and wire for cold heading and cold extrusion æ Part

sã General technical delivery conditions Barresá fil machine et fils en acier pour transformation à froid et extrusion à froid æ Partie

sã Conditions techniques gßnßrales de livraison
Walzdrahtá Stäbe und Draht aus Kaltstauchæund Kaltfließpreßstählen æ Teil

sã Allgemeine technische Lieferbedingungen This European Standard was approved by CEN on

s x July
t r s yä

egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä

translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels

t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN

s r t x uæ sã t r s y ESIST EN 10263-1:2018

EN 10263-1:2017 (E) 2 Contents Page European foreword ....................................................................................................................................................... 4 1 Scope .................................................................................................................................................................... 5 2 Normative references .................................................................................................................................... 5 3 Terms and definitions ................................................................................................................................... 7 4 Classification and Designation ................................................................................................................... 7 4.1 Classification ..................................................................................................................................................... 7 4.2 Designation........................................................................................................................................................ 7 4.2.1 Steel names ........................................................................................................................................................ 7 4.2.2 Steel numbers ................................................................................................................................................... 7 5 Information to be supplied by the purchaser ....................................................................................... 7 5.1 Mandatory information ................................................................................................................................ 7 5.2 Options ................................................................................................................................................................ 8 5.3 Example of an order ....................................................................................................................................... 8 6 Production process ......................................................................................................................................... 9 7 Requirements ................................................................................................................................................... 9 7.1 General ................................................................................................................................................................ 9 7.2 Quality management system ....................................................................................................................... 9 7.3 Form of delivery .............................................................................................................................................. 9 7.4 Delivery condition .......................................................................................................................................... 9 7.4.1 Basic delivery condition ............................................................................................................................... 9 7.4.2 Summary of combinations of delivery conditions, product forms and corresponding requirements .................................................................................................................................................... 9 7.4.3 Surface treatment ........................................................................................................................................... 9 7.5 Chemical composition ................................................................................................................................... 9 7.5.1 Cast analysis ...................................................................................................................................................... 9 7.5.2 Product analysis ........................................................................................................................................... 10 7.6 Mechanical properties ................................................................................................................................ 10 7.7 Hardenability requirements .................................................................................................................... 10 7.7.1 General ............................................................................................................................................................. 10 7.7.2 End quench (Jominy test) hardenability requirements ................................................................. 10 7.7.3 Core hardening requirements ................................................................................................................. 10 7.7.4 Hardenability by calculation .................................................................................................................... 10 7.8 Microstructure .............................................................................................................................................. 10 7.8.1 Austenitic grain size .................................................................................................................................... 10 7.8.2 Carbide spheroidization ............................................................................................................................ 11 7.8.3 Non-metallic inclusions ............................................................................................................................. 11 7.9 Internal soundness ...................................................................................................................................... 11 7.10 Surface quality............................................................................................................................................... 11 7.10.1 General ............................................................................................................................................................. 11 7.10.2 Hot rolled products ..................................................................................................................................... 11 7.10.3 Bright products ............................................................................................................................................. 11 7.10.4 Removal of surface defects and imperfections .................................................................................. 11 7.11 Decarburisation ............................................................................................................................................ 11 7.12 Corrosion resistance of stainless steels ............................................................................................... 12 8 Dimensions and tolerances on dimensions and shape................................................................... 12 SIST EN 10263-1:2018

EN 10263-1:2017 (E) 3 9 Testing and inspection ................................................................................................................................ 13 9.1 Types and contents of inspection documents .................................................................................... 13 9.2 Extension of inspection .............................................................................................................................. 13 9.3 Specific inspection and testing ................................................................................................................ 14 9.3.1 Testing of mechanical properties ........................................................................................................... 14 9.3.2 Testing of hardenability by end quench test (Jominy test) ........................................................... 14 9.3.3 Testing of compliance with core hardening requirements ........................................................... 14 9.3.4 Surface inspection ........................................................................................................................................ 15 9.3.5 Number and frequency of tests ................................................................................................................ 15 9.3.6 Dimensional inspection .............................................................................................................................. 15 10 Test methods .................................................................................................................................................. 15 10.1 Mechanical tests ............................................................................................................................................ 15 10.1.1 Tensile test ...................................................................................................................................................... 15 10.1.2 Hardness test .................................................................................................................................................. 16 10.2 Verification of hardenability .................................................................................................................... 16 10.2.1 General ............................................................................................................................................................. 16 10.2.2 End quench test (Jominy test) .................................................................................................................. 16 10.2.3 Core hardening test ...................................................................................................................................... 16 10.3 Methods for surface inspection ............................................................................................................... 17 10.3.1 Upsetting test ................................................................................................................................................. 17 10.3.2 Magnetic particle inspection .................................................................................................................... 17 10.3.3 Other inspection methods ......................................................................................................................... 17 10.4 Determination of the depth of decarburisation ................................................................................ 17 10.5 Retests, sorting and reprocessing .......................................................................................................... 18 11 Marking ............................................................................................................................................................ 18 12 Packaging ......................................................................................................................................................... 18 13 Protection ........................................................................................................................................................ 19 14 Complaints after delivery .......................................................................................................................... 19 15 Supplementary or special requirements ............................................................................................. 19 Annex A (normative)

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

Determination and assessment of non-metallic inclusions............................. 25 Bibliography ................................................................................................................................................................. 26

SIST EN 10263-1:2018

EN 10263-1:2017 (E) 4 European foreword This document (EN 10263-1:2017) has been prepared by Technical Committee ECISS/TC 106 “Wire rod and wires”, the secretariat of which is held by AFNOR. 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 May 2018, and conflicting national standards shall be withdrawn at the latest by May 2018. 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 10263-1:2001. This European Standard EN 10263 is subdivided as follows: — Part 1: General technical delivery conditions — Part 2: Technical delivery conditions for steels not intended for heat treatment after cold working — Part 3: Technical delivery conditions for case hardening steels — Part 4: Technical delivery conditions for steels for quenching and tempering — Part 5: Technical delivery conditions for stainless steels 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 10263-1:2018

EN 10263-1:2017 (E) 5 1 Scope 1.1 This part of EN 10263 specifies the general technical delivery conditions for round rod, round bars and wire for cold heading and cold extrusion made of: a) non alloy steels not intended for heat treatment after cold working, as specified in EN 10263-2; b) non alloy and alloy steels for case hardening, as specified in EN 10263-3; c) non alloy and alloy steels for quenching and tempering, as specified in EN 10263-4; d) stainless steels, as specified in EN 10263-5. 1.2 Parts 2, 3 and 4 of this EN 10263 cover products having a diameter up to and including 100 mm. Part 5 covers products having a diameter up to and including: — 25 mm for ferritic and austenitic-ferritic steels; — 50 mm for austenitic steels; — 100 mm for martensitic steels. 1.3 In special cases supplementary requirements or deviations with respect to this European Standard may be agreed between the purchaser and the supplier at the time of enquiry and order (See Annex A). 1.4 The general technical delivery conditions in EN 10021 also apply to products supplied in accordance with this European Standard 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. 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 ISO 4885, Ferrous materials - Heat treatments - Vocabulary (ISO 4885) EN 10060, Hot rolled round steel bars for general purposes - Dimensions and tolerances on shape and dimensions EN 10079, Definition of steel products EN 10108, Round steel rod for cold heading and cold extrusion - Dimensions and tolerances EN 10204, Metallic products - Types of inspection documents SIST EN 10263-1:2018

EN 10263-1:2017 (E) 6 EN 10218-2, Steel wire and wire products - General - Part 2: Wire dimensions and tolerances EN 10221:1995, Surface quality classes for hot-rolled bars and rods - Technical delivery conditions EN 10247, Micrographic examination of the non-metallic inclusion content of steels using standard pictures EN 10263-2:2017, Steel rod, bars and wire for cold heading and cold extrusion - Part 2: Technical delivery conditions for steels not intended for heat treatment after cold working EN 10263-3:2017, Steel rod, bars and wire for cold heading and cold extrusion - Part 3: Technical delivery conditions for case hardening steels EN 10263-4:2017, Steel rod, bars and wire for cold heading and cold extrusion - Part 4: Technical delivery conditions for steels for quenching and tempering EN 10263-5:2017, Steel rod, bars and wire for cold heading and cold extrusion - Part 5: Technical delivery conditions for stainless steels EN 10277-1:2008, Bright steel products - Technical delivery conditions - Part 1: General EN 10278, Dimensions and tolerances of bright steel products EN 10308, Non destructive testing - Ultrasonic testing of steel bars EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:2017) EN ISO 642, Steel - Hardenability test by end quenching (Jominy test) (ISO 642:1999) EN ISO 643, Steels - Micrographic determination of the apparent grain size (ISO 643:2012) EN ISO 3651-2, Determination of resistance to intergranular corrosion of stainless steels - Part 2: Ferritic, austenitic and ferritic-austenitic (duplex) stainless steels - Corrosion test in media containing sulfuric acid (ISO 3651-2:1998) EN ISO 3887, Steels - Determination of depth of decarburization (ISO 3887:2003) EN ISO 6508-1, Metallic materials - Rockwell hardness test - Part 1: Test method (ISO 6508-1:2016) EN ISO 6892-1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1:2016) EN ISO 9934-1, Non-destructive testing - Magnetic particle testing - Part 1: General principles (ISO 9934-1:2016) EN ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996) ISO 4967, Steel — Determination of non-metallic inclusions — Microscopic method using standard diagrams SIST EN 10263-1:2018

EN 10263-1:2017 (E) 7 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10020, EN 10021, EN ISO 4885, EN 10079, EN ISO 377 and EN ISO 14284 apply. 4 Classification and Designation 4.1 Classification The classification of the steel grades covered by this European Standard according to EN 10020 is indicated in 4.1 of parts 2, 3, 4 and 5 of this standard for the corresponding steel grades. 4.2 Designation 4.2.1 Steel names For the steel grades covered by this European Standard, the steel names as given in the relevant tables of Parts 2, 3, 4 and 5 of this standard series are allocated in accordance with EN 10027-1. 4.2.2 Steel numbers For the steel grades covered by this European Standard, the steel numbers as given in the relevant tables of Parts 2, 3, 4 and 5 of this standard are allocated in accordance with 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 satisfactorily with the requirements of this European Standard: a) quantity to be delivered; b) product denomination (rod or bar or wire); c) the nominal diameter and the dimensional tolerances on dimensions and shape of the products with a reference to the relevant European Standard (see Clause 8); d) length for bars and tolerances on length or dimensions and mass for the coils; e) reference to this European Standard including the number of the relevant Part(s); f) the designation of the steel grade (see 4.2); g) the symbol of the required treatment condition (see 7.4 and Table 1); h) the symbol of the required surface condition (see 7.10 and Table 2); i) if applicable, indication of the symbol for hardenability requirements (see 7.7); j) type of inspection document in accordance with EN 10204 (see 9.1); k) requirements concerning packaging (see Clause 12). SIST EN 10263-1:2018

EN 10263-1:2017 (E) 8 5.2 Options Several options are specified and listed below. If the purchaser does not indicate any of these options at the time of enquiry and order, all decisions regarding them shall be left to the manufacturer’s discretion (see 5.1 and Table1) 1) special surface treatment (see 7.4.3); 2) any requirement for the product analysis (see 7.5.2 and A.2); 3) any requirement for the hardenability (+H, +HH, +HL) or any requirement for core hardening (see Tables 7 and 8 of EN 10263-3:2017 and Tables 8 to 11 of EN 10263-4:2017 (see 7.7); 4) any requirement for the verification of hardenability (see 10.2); 5) any requirement for the verification of the fine grain structure (see 7.8.1 and A.3); 6) carbide spheroidization (see 7.8.2) and any requirement for the verification of the carbide spheroidization (see A.4); 7) any requirement for the verification of the non-metallic inclusions in steels specified in EN 10263-3:2017 and EN 10263-4:2017 (see A.5 and Annex B); 8) internal soundness and any requirements for non-destructive testing (see 7.9.2 and A.6); 9) surface quality (see 7.10.1 to 7.10.3) and any requirements for upsetting tests (see 9.3.5.1 and 10.3.1), for magnetic particle inspection (see 9.3.5.2 and 10.3.2) or for other inspection methods (see 9.3.5.3 and 10.3.3) ; 10) removal of surface defects and imperfections (see 7.10.4); 11) depth of decarburisation (see 7.11) and any requirements for testing the depth of decarburisation (see 10.4 and A.7); 12) corrosion resistance of stainless steel products (see 7.12) and any requirements for resistance to intergranular corrosion (see A.8); 13) statistical evaluation (see 7.1); 14) calculation of hardenability (see 10.2); 15) requirements on surface protection (see Clause 13); 16) surface quality E for rod for certain applications (see 7.10.2.1). 5.3 Example of an order 100 t round bars in accordance with Part 4 of this European Standard, with a diameter of 50 mm with normal diameter tolerances (N) and fixed length of 6 000 mm in accordance with EN 10060, made of steel grade 32CrB4 (1.7076) spheroidized and cold drawn, with a 3.1. inspection certificate in accordance with EN 10204. 100 t – round bars – EN 10060 50 mm N x 6000 mm fixed length Steel grade EN 10263-4 — 32CrB4+AC+C

Inspection document EN 10204 3.1 SIST EN 10263-1:2018

EN 10263-1:2017 (E) 9 6 Production process Unless otherwise agreed at the time of enquiry and order, the production process is left to the discretion of the manufacturer. 7 Requirements 7.1 General Suppliers are responsible, using the means they think fit, for inspecting their product in accordance with various quality criteria specified. In view of the practical difficulties in inspecting a coil of wire rod along its entire length, it cannot be proved that no value greater than the specified limits is to be found in the coil as a whole. Statistical evaluation of performances applicable to all coils may be agreed between the purchaser and the manufacturer at the time of ordering. 7.2 Quality management system If agreed between the supplier and purchaser at the time of enquiry and order, the wire rod supplied shall be produced under a mutually acceptable quality system. 7.3 Form of delivery The delivery shall consist of one cast or a fraction thereof. Each product shall be traceable to the cast analysis, see Clause 11. 7.4 Delivery condition 7.4.1 Basic delivery condition Rod, bars and wire shall be supplied in one of the delivery conditions, that has been agreed at the time of ordering, as indicated in Table 1 of EN 10263-2:2017 and Tables 1 and 2 of EN 10263-3:2017 to EN 10263-5:2017. 7.4.2 Summary of combinations of delivery conditions, product forms and corresponding requirements A summary of customary delivery conditions and product forms and of the corresponding requirements concerning chemical composition, mechanical properties and, where applicable, hardenability is given in Table 1 of EN 10263-2:2017 and Tables 1 and 2 of EN 10263-3:2017 to EN 10263-5:2017. 7.4.3 Surface treatment Any surface treatment that can facilitate subsequent cold heading and cold extrusion or partially delay any formation of rust shall be subject of an agreement at the time of ordering. The above treatment can include, e.g. descaling, treatment with lime and-or phosphate. 7.5 Chemical composition 7.5.1 Cast analysis 7.5.1.1 The chemical composition of steel on cast analysis shall be in conformity with the values specified in Table 2 of EN 10263-2:2017, in Table 3 of EN 10263-3:2017, in Tables 3 and 4 of EN 10263 -4:2017

and in Table 3 of EN 10263-5:2017, as appropriate to the steel grade concerned. 7.5.1.2 In cases where steels for case hardening or for quenching and tempering are ordered in accordance with Tables 8 and 9 of EN 10263-3:2017 and in Tables 9 to 12 of EN 10263-4:2017, which SIST EN 10263-1:2018

EN 10263-1:2017 (E) 10 involves conformity with hardenability requirements according to the Jominy or core hardening tests, such hardenability requirements shall be considered as the governing criterion for acceptance. In such cases a deviation of the cast analysis with respect to the values indicated in Table 3 of EN 10263-3:2017 and in Tables 3 and 4 of EN 10263-4:2017 is admissible, taking into account the prescriptions given in footnote b) of those tables. In any case however, the deviations in the product analysis in relation to the specified limits of cast analysis shall not exceed the values indicated in Table 4 of EN 10263-3:2017 and in Table 5 of EN 10263-4:2017. 7.5.2 Product analysis The purchaser can specify at the time of enquiry and order that the chemical composition on product analysis be verified. In this case reference should be made to A.2. The permissible deviations in the product analysis in relation to the specified limits of cast analysis (see 7.5.1) are indicated in Table 3 of EN 10263-2:2017, in Table 4 of EN 10263-3:2017, in Table 5 of EN 10263-4:2017

and in Table 4 of EN 10263-5:2017. 7.6 Mechanical properties The mechanical properties of products covered by this European Standard shall meet the prescriptions stated in 6.3 of EN 10263-2:2017 to EN 10263-5:2017. 7.7 Hardenability requirements 7.7.1 General Products cannot be ordered and supplied according to both end quench test hardenability requirements and core hardening requirements 7.7.2 End quench (Jominy test) hardenability requirements In cases where a product is ordered with reference to a steel grade the designation of which is quoted in Tables 8 and 9 of EN 10263-3:2017

or in Tables 9 to 11 of EN 10263-4:2017, the product shall meet the hardenability requirements indicated in those tables. For the verification, see 10.2.1. 7.7.3 Core hardening requirements In cases where a product is ordered with reference to a steel grade the designation of which is quoted in Table 12 of EN 10263-4:2017, core hardening properties shall meet the requirements indicated in the relevant tables. At least 90 % of the structure shall be martensite. In cases of dispute regarding supplies of prod

...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.