ISO 16143-3:2014

Stainless steels for general purposes

ISO 16143-3:2014 specifies requirements for stainless steel wire for common use for which no product standard exists. It includes round, flat, and shaped wire (such as square, hexagonal, or rectangular wire), made of the most commonly used types of stainless steels for general corrosion resistance and high-temperature service. The wire can be supplied in coils or in straightened and cut lengths.

Aciers inoxydables pour usage général

General Information

• Status: Published
• Publication Date: 19-May-2014
• ICS: 77.140.20 - Stainless steels
• ICS: 77.140.65 - Steel wire, wire ropes and link chains
• Technical Committee: ISO/TC 17/SC 4 - Heat treatable and alloy steels
• Drafting Committee: ISO/TC 17/SC 4 - Heat treatable and alloy steels
• Current Stage: 6060 - International Standard published
• Start Date: 20-Mar-2014
• Completion Date: 20-May-2014

RELATIONS

• Revised: ISO 16143-3:2005 - Stainless steels for general purposes
• Effective Date: 26-Feb-2011

Standards Content (sample)

INTERNATIONAL ISO
STANDARD 16143-3
Second edition
2014-05-15
Stainless steels for general
purposes —
Part 3:
Wire
Aciers inoxydables pour usage général —
Partie 3: Fil
Reference number
ISO 16143-3:2014(E)
ISO 2014
---------------------- Page: 1 ----------------------
ISO 16143-3:2014(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2014

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 16143-3:2014(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Designation ................................................................................................................................................................................................................ 2

5 Information to be supplied by the purchaser......................................................................................................................... 2

6 Manufacturing conditions .......................................................................................................................................................................... 3

6.1 General ........................................................................................................................................................................................................... 3

6.2 Treatment conditions ........................................................................................................................................................................ 3

6.3 Surface finish ............................................................................................................................................................................................ 3

7 Requirements .......................................................................................................................................................................................................... 4

7.1 Manufacturing process..................................................................................................................................................................... 4

7.2 Delivery condition ................................................................................................................................................................................ 4

7.3 Chemical analysis .................................................................................................................................................................................. 4

7.4 Mechanical properties ...................................................................................................................................................................... 4

7.5 Tolerances on dimensions ............................................................................................................................................................. 5

8 Inspection, testing, and conformance of products ............................................................................................................ 5

8.1 General ........................................................................................................................................................................................................... 5

8.2 Inspection and testing procedures and types of inspection documents ............................................... 5

8.3 Specific inspection and testing .................................................................................................................................................. 6

8.4 Test methods ............................................................................................................................................................................................. 6

8.5 Retests ............................................................................................................................................................................................................ 6

9 Packing and marking ....................................................................................................................................................................................... 6

Annex A (informative) Designations of the steels given in Table 1 and of comparable grades

covered in ASTM, EN, JIS, and GB standards ..........................................................................................................................16

Bibliography .............................................................................................................................................................................................................................19

© ISO 2014 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 16143-3:2014(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

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

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers

to Trade (TBT) see the following URL: Foreword - Supplementary information

The committee responsible for this document is ISO/TC 17, Steel, Subcommittee SC 4, Heat treatable and

alloy steels.

This second edition cancels and replaces the first edition (ISO 16143-3:2005), which has been technically

revised.

ISO 16143 consists of the following parts, under the general title Stainless steels for general purposes:

— Part 1: Corrosion-resistant flat products
— Part 2: Corrosion-resistant semi-finished products, bars, rods and sections
— Part 3: Wire
iv © ISO 2014 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 16143-3:2014(E)
Stainless steels for general purposes —
Part 3:
Wire
1 Scope

This part of ISO 16143 specifies requirements for stainless steel wire for common use for which no product

standard exists. It includes round, flat, and shaped wire (such as square, hexagonal, or rectangular

wire), made of the most commonly used types of stainless steels for general corrosion resistance and

high-temperature service. The wire can be supplied in coils or in straightened and cut lengths.

NOTE Steel wire made of corrosion-resistant stainless steel is manufactured from steels mentioned in

ISO 16143-2, and steel wire intended for high-temperature purposes is manufactured from steels mentioned in

ISO 4955.

In addition to this part of ISO 16143, the general technical delivery requirements of ISO 404 are applicable.

Excluded from this part of ISO 16143 are
— wire for cold heading,
— welding wire, and
— any wire for which a specific product standard exists.
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.

ISO 404, Steel and steel products — General technical delivery requirements
ISO 4955, Heat-resistant steels

ISO 6892-1:2009, Metallic materials — Tensile testing — Part 1: Method of test at room temperature

ISO 6929:2013, Steel products — Vocabulary
ISO 10474, Steel and steel products — Inspection documents

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

composition
ISO 15510, Stainless steels — Chemical composition

ISO 16143-2, Stainless steels for general purposes — Part 2: Corrosion-resistant semi-finished products,

bars, rods and sections
ISO/TS 4949, Steel names based on letter symbols
ISO/TR 9769, Steel and iron — Review of available methods of analysis
© ISO 2014 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO 16143-3:2014(E)
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 6929 and the following apply.

3.1
stainless steel
steel with at least 10,5 % Cr and maximum 1,2 % C
3.2
wire

cold-worked product generally of constant cross section throughout its length, the dimensions of the

section being very small compared with the length

Note 1 to entry: The cold working is accomplished by drawing rod through a reducing die or by passing under

pressure between driven rolls and recoiling the drawn product. The cross section is generally circular, sometimes

oval, rectangular, square, hexagonal, octagonal, or another shape (other than strip).

[SOURCE: ISO 6929:2013, modified]
4 Designation

For the steel grades covered by this part of ISO 16143, the steel names as given in the tables are allocated

in accordance with ISO/TS 4949.

For the steel grades covered by this part of ISO 16143, the steel numbers as given in the tables are

allocated in accordance with ISO 15510.
5 Information to be supplied by the purchaser

The purchaser shall clearly state, at the time of ordering, the following information:

— the desired quantity;
— the term “wire” or “straightened and cut wire”;
— the diameter or, for non-round wire, the characteristic dimension;

— for round wire, the tolerances in accordance with Table 5, (N) for normal tolerances and (R) for

restricted tolerances; for non-round wire, the desired tolerances on dimensions;
— the type of material (steel);
— the number of this part of ISO 16143, i.e. ISO 16143-3;

— the steel name or steel number of the steel grade and the standard manufacturing condition of the

wire (see 6.2);

— if applicable, the tensile-strength level in accordance with Table 4 (for hard-drawn wire);

— any further optional test agreed between the manufacturer and purchaser at the time of enquiry

and order [see 8.2.3 b)];
— the type of coiling;

— the type of inspection document and its designation in accordance with ISO 10474 (see 8.2.1).

EXAMPLE 1 2 t round stainless steel wire of 2,00 mm diameter with normal tolerances (N) in accordance

with Table 5 of ISO 16143-3 made of a steel grade with name X20Cr13 and number 4021-420-00-I, as specified in

ISO 16143-3, standard manufacturing condition +A, in coils of about 500 kg, inspection document 3.1 as specified

in ISO 10474, is designated as follows:
2 © ISO 2014 – All rights reserved
---------------------- Page: 6 ----------------------
ISO 16143-3:2014(E)
2 t wire 2,00 N
ISO 16143-3 – X20Cr13+A in coils of about 500 kg
ISO 10474 – 3.1
2 t wire 2,00 N
ISO 16143-3 – 4021-420-00-I +A in coils of about 500 kg
ISO 10474 – 3.1

EXAMPLE 2 5 t round stainless steel wire of 3,00 mm diameter with restricted tolerances (R) in accordance

with Table 5 of ISO 16143-3 made of a steel grade with name X6CrNi18-12 and number, as specified in ISO 16143-3,

hard drawn with a tensile strength 1 600 MPa to 1 900 MPa, on spools of about 300 kg, inspection document 3.1 as

specified in ISO 10474, is designated as follows:
5 t wire 3,00 R
ISO 16143-3 – X6CrNi18-12 +C1600 on spools of about 300 kg
ISO 10474 – 3.1
5 t wire 3,00 R
ISO 16143-3 – 4304-305-00-I +C1600 on spools of about 300 kg
ISO 10474 – 3.1
6 Manufacturing conditions
6.1 General

If not stated otherwise, the manufacturing procedure is at the discretion of the manufacturer.

6.2 Treatment conditions

The wire shall be specified in one of the following conditions, depending on the structure:

— Condition +A: The wire is annealed as the final heat treatment. Note that this material might be

slightly deformed by straightening, cold work, size control, or finish. This will result in a slight

increase of the tensile strength.

— Condition +AT: The wire is solution annealed as the final heat treatment. Note that this material

might be slightly deformed by straightening, cold work, size control, or finish. This will result in a

slight increase of the tensile strength.

— Condition +C: The wire is hard drawn as the last operation, in order to achieve higher strength.

6.3 Surface finish

If not specified otherwise, the surface finish of the wire is one of the following, depending on previous

processing steps.
6.3.1 Cold drawn

This is the natural finish resulting from the drawing to final size, generally with cold-drawing lubricant

left on. The finish will be duller for dry-drawn wire or shinier for wire that is wet drawn. Fine sizes are

commonly wet drawn, whereas coarser sizes are commonly dry drawn. Special bright finishes, lubricant

removal, etc. required for special end-use shall be negotiated with the manufacturer.

© ISO 2014 – All rights reserved 3
---------------------- Page: 7 ----------------------
ISO 16143-3:2014(E)
6.3.2 Annealed

This is a dull matt appearance, necessarily associated with the dead soft condition of annealed wire

when no final drawing is permitted. With an additional surface treatment, a bright appearance can be

realized.
6.3.3 Polished finish

This is a smooth and uniform bright finish of cold-processed (+C) material obtained by mechanical

smoothing, burnishing, abrading, or grinding.
7 Requirements
7.1 Manufacturing process

The steelmaking process for products according to this part of ISO 16143 shall be in accordance with

ISO 4955 and ISO 16143-2. The wire processing, insofar as it is not specified in this part of ISO 16143 or

agreed between the parties, shall be at the discretion of the wire drawer.
7.2 Delivery condition
The product shall be supplied as described in Clause 6 and agreed in the order.
7.3 Chemical analysis
7.3.1 Cast analysis

The chemical composition requirements given in Table 1 apply with respect to the chemical composition

of the cast analysis.
7.3.2 Product analysis

The product analysis can deviate from the limiting values for the cast analysis given in Table 1 by the

values listed in Table 2.
7.4 Mechanical properties
7.4.1 Mechanical properties for annealed wire

The tensile strength and elongation shall satisfy the requirements of Table 3. It specifies the mechanical

properties at room temperature in the annealed condition. For austenitic, austenitic-ferritic, and

precipitiation-hardening steels, the wire is in the condition +AT; for ferritic and martensitic steels, this

is in the condition +A.
7.4.2 Mechanical properties of hard-drawn wire

This wire is in condition +C The tensile strength will depend on the degree of work hardening, the

specific type of steel, and the processing of the material. The tensile strength is specified by a minimum

and maximum. Not all the tensile strength levels listed in Table 4 can be achieved for all steel grades.

Therefore, the required tensile-strength level shall be agreed between the manufacturer and the

purchaser at the time of ordering.

Table 4 gives an overview of the standardized tensile-strength levels and the corresponding minimum

and maximum.
4 © ISO 2014 – All rights reserved
---------------------- Page: 8 ----------------------
ISO 16143-3:2014(E)
7.5 Tolerances on dimensions

For round wire, the purchaser shall specify normal tolerance (N) or restricted tolerance (R), as defined

in Table 5. For non-round wire, tolerances shall be agreed upon at the time of ordering.

The out-of-roundness is the difference between the largest and the smallest diameter in the same cross

section of the wire. The cross section shall be perpendicular to the longitudinal wire axis. The out-of-

roundness shall not exceed half the total diameter tolerance specified for coils.

8 Inspection, testing, and conformance of products
8.1 General

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

delivery complies with the requirements of the order.
This includes the following:
— a suitable frequency of verification of the dimensions of the products;

— an adequate intensity of visual examination of the surface quality of the products;

— an appropriate frequency and type of test to ensure that the correct grade of steel is delivered.

The nature and frequency of these verifications, examinations, and tests are determined by the

manufacturer, based on the degree of consistency that has been determined by the evidence of his

quality system. In view of this, verifications by specific tests for these requirements are not necessary,

unless otherwise agreed.
8.2 Inspection and testing procedures and types of inspection documents

8.2.1 Products complying with this part of ISO 16143 shall be ordered and delivered with one of the

inspection documents as specified in ISO 10474. The type of document shall be agreed upon at the time

of enquiry and order. If the order does not contain any specification of this type, a test report 2.2 shall be

issued.

8.2.2 If, in accordance with the agreements made at the time of ordering, a test report is to be provided,

this shall cover

a) the statement that the material complies with the requirements of the order and

b) the results of the cast analysis for all elements specified for the type of steel supplied.

8.2.3 If, in accordance with the agreements in the order, an inspection certificate 3.1 or 3.2 of ISO 10474

is to be provided, the specific inspections and tests described in 8.3 shall be carried out and their results

shall be certified in the document.
In addition to 8.2.2, the document shall cover
a) the results of the tests of Table 6 and
b) the results of any optional test or inspection agreed when ordering.
© ISO 2014 – All rights reserved 5
---------------------- Page: 9 ----------------------
ISO 16143-3:2014(E)
8.3 Specific inspection and testing
8.3.1 Extent of testing

The tests to be carried out, the composition and size of the test units, and the number of sample products,

samples, and test pieces to be taken are given in Table 6.
8.3.2 Selection and preparation of samples and test pieces

The general conditions for selection and preparation of samples and test pieces shall be in accordance

with ISO 377 and ISO 14284. The samples shall be taken from products in the delivery condition.

8.4 Test methods
8.4.1 Product analysis

Unless otherwise agreed when ordering, the choice of a suitable physical or chemical method of analysis

to determine the product analysis is at the discretion of the manufacturer. In cases of dispute, the

analysis shall be carried out by a laboratory approved by the two parties. In these cases, the reference

method of analysis shall be agreed, where possible, with reference to ISO/TR 9769.

8.4.2 Tensile test

The tensile test shall be carried out in accordance with ISO 6892-1 and it shall be performed under

controlled conditions in accordance with Clause 5 of ISO 6892-1:2009. The tensile strength (R ) shall be

measured and, for annealed material only, the elongation (A).
8.4.3 Measurement of the wire diameter

The diameter of the round wire shall be measured in a cross section perpendicular to the wire axis

with a micrometer of appropriate precision. Any dimensional measurement methods to be used on non-

round wire shall be agreed upon at the time of ordering.
8.5 Retests
Retests shall be in accordance with ISO 404.
9 Packing and marking
9.1 Packing shall be such that it permits
...

DRAFT INTERNATIONAL STANDARD ISO/DIS 16143-3
ISO/TC 17/SC 4 Secretariat: DIN
Voting begins on Voting terminates on
2012-12-03 2013-03-03

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION

Stainless steels for general purposes —
Part 3:
Wire
Aciers inoxydables pour usage général —
Partie 3: Fil
[Revision of first edition (ISO 16143-3:2005)
ICS 77.140.20; 77.140.65

To expedite distribution, this document is circulated as received from the committee

secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at

publication stage.

Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du

secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au

Secrétariat central de l'ISO au stade de publication.

THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE

REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.

IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT

INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO

WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.

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.
© International Organization for Standardization, 2012
---------------------- Page: 1 ----------------------
ISO/DIS 16143-3
Copyright notice

This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted

under the applicable laws of the user’s country, neither this ISO draft nor any extract from it may be

reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic,

photocopying, recording or otherwise, without prior written permission being secured.

Requests for permission to reproduce should be addressed to either ISO at the address below or ISO’s

member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
ii © ISO 2012 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/DIS 16143-3
Contents Page

Foreword ............................................................................................................................................................iv

1 Scope......................................................................................................................................................1

2 Normative references............................................................................................................................1

3 Terms and definitions ...........................................................................................................................2

4 Designation ............................................................................................................................................2

5 Information to be supplied by the purchaser .....................................................................................2

6 Manufacturing conditions.....................................................................................................................3

6.1 General ...................................................................................................................................................3

6.2 Treatment conditions............................................................................................................................3

6.3 Surface finish.........................................................................................................................................3

6.3.1 Cold drawn .............................................................................................................................................4

6.3.2 Annealed ................................................................................................................................................4

6.3.3 Polished finish.......................................................................................................................................4

7 Requirements.........................................................................................................................................4

7.1 Manufacturing process.........................................................................................................................4

7.2 Delivery condition .................................................................................................................................4

7.3 Chemical analysis .................................................................................................................................4

7.3.1 Cast analysis..........................................................................................................................................4

7.3.2 Product analysis....................................................................................................................................4

7.4 Mechanical properties...........................................................................................................................4

7.4.1 Mechanical properties for annealed wire............................................................................................4

7.4.2 Mechanical properties of hard-drawn wire .........................................................................................4

7.5 Tolerances on dimension .....................................................................................................................5

8 Inspection, testing and conformance of products.............................................................................5

8.1 General ...................................................................................................................................................5

8.2 Inspection and testing procedures and types of inspection documents........................................5

8.3 Specific inspection and testing ...........................................................................................................6

8.3.1 Extent of testing ....................................................................................................................................6

8.3.2 Selection and preparation of samples and test pieces .....................................................................6

8.4 Test methods .........................................................................................................................................6

8.4.1 Product analysis....................................................................................................................................6

8.4.2 Tensile test.............................................................................................................................................6

8.4.3 Measurement of the wire diameter ......................................................................................................6

8.5 Retests....................................................................................................................................................6

9 Packing and Marking.............................................................................................................................6

Annex A (informative) Designations of the steels given in Table 1 and of comparable grades

covered in ASTM-, EN-, JIS- and GB-Standards ..............................................................................17

Bibliography......................................................................................................................................................19

© ISO 2012 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/DIS 16143-3
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies

(ISO member bodies). The work of preparing International Standards is normally carried out through ISO

technical committees. Each member body interested in a subject for which a technical committee has been

established has the right to be represented on that committee. International organizations, governmental and

non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the

International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

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

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

This second edition cancels and replaces the first edition (ISO 16143-3:2005) which has been technically

revised.

ISO 16143 consists of the following parts, under the general title Stainless steels for general purposes:

 Part 1: Corrosion resistant flat products
 Part 2: Corrosion resistant semi-finished products, bars and sections
 Part 3: Wire
iv © ISO 2012 – All rights reserved
---------------------- Page: 4 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 16143-3
Stainless steels for general purposes — Part 3: Wire
1 Scope

This part of ISO 16143 specifies requirements for stainless steel wire for common use for which no product

standard exists. It includes round, flat and shaped wire (such as square, hexagonal or rectangular wire), made

of the most commonly used types of stainless steels for general corrosion resistance and high-temperature

service. The wire may be supplied in coils or in straightened and cut lengths.

NOTE Steel wire made of corrosion resistant stainless steel is manufactured from steels mentioned in ISO 16143-2,

and steel wire intended for high-temperature purposes is manufactured from steels mentioned in ISO 4955.

In addition to this part of ISO 16143, the general technical delivery requirements of ISO 404 are applicable.

Excluded from this part of ISO 16143 are
 wire for cold heading;
 welding wire, and
 any wire for which a specific product standard exists.
2 Normative references

The following referenced documents are indispensable for the application 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.
ISO 404, Steel and steel products — General technical delivery requirements
ISO/TS 4949, Steel names based on letter symbols
ISO 4955, Heat-resistant steels

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

ISO 6929, Steel products — Definitions and classification
ISO/TR 9769, Steel and iron — Review of available methods of analysis
ISO 10474, Steel and steel products — Inspection documents

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

composition
ISO 15510, Stainless steels — Chemical composition

ISO 16143-2, Stainless steels for general purposes — Part 2: Semi-finished products, bars, rods and sections

© ISO 2012 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO/DIS 16143-3
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 6929 and the following apply.

3.1
stainless steel
steel with at least 10,5 % Cr and maximum 1,2 % C
3.2
wire

cold-worked product generally of constant cross-section throughout its length, the dimensions of the section

being very small compared with the length

NOTE 1 The cold working is accomplished by drawing rod through a reducing die or by passing under pressure

between driven rolls and recoiling the drawn product. The cross-section is generally circular, sometimes oval, rectangular,

square, hexagonal, octagonal or another shape (other than strip).
NOTE 2 Adapted from the definition in ISO 6929:1987.
4 Designation

For the steel grades covered by this International Standard, the steel names as given in the tables are

allocated in accordance with ISO/TS 4949.

For the steel grades covered by this International Standard, the steel numbers as given in the tables are

allocated in accordance with ISO 15510.
5 Information to be supplied by the purchaser

The purchaser shall clearly state, at the time of ordering, the following information:

 the desired quantity;
 the term “wire” or “straightened and cut wire”;
 the diameter or, for non-round wire, the characteristic dimension;

 for round wire the tolerances in accordance with Table 5, (N) for normal tolerances and (R) for restricted

tolerances; for non-round wire, the desired tolerances on dimensions;
 the type of material (steel);
 the number of this part of ISO 16143 (ISO 16143-3);

 the steel name or steel number of the steel grade and the standard manufacturing condition of the wire

(see 6.2);

 if applicable, the tensile-strength level in accordance with Table 4 (for hard-drawn wire);

 any further optional test agreed between manufacturer and purchaser at the time of enquiry and order

(see 8.2.3.b)
 the type of coiling;

 the type of inspection document and its designation in accordance with ISO 10474 (see 8.2.1).

2 © ISO 2012 – All rights reserved
---------------------- Page: 6 ----------------------
ISO/DIS 16143-3

EXAMPLE 1 2 t round stainless steel wire of 2,00 mm diameter with normal tolerances (N) in accordance with Table 5

of ISO 16143-3 made of a steel grade with name X20Cr13 and number 4021-420-00-I, as specified in ISO 16143-3,

standard manufacturing condition +A, in coils of about 500 kg, inspection document 3.1 as specified in ISO 10474 is

designated as follows:
2 t wire 2,00 N
ISO 16143-3 – X20Cr13+A in coils of about 500 kg
ISO 10474 – 3.1
2 t wire 2,00 N
ISO 16143-3 – 4021-420-00-I +A in coils of about 500 kg
ISO 10474 – 3.1

EXAMPLE 2 5 t round stainless steel wire of 3,00 mm diameter with restricted tolerances (R) in accordance with Table

5 of ISO 16143-3 made of a steel grade with name X6CrNi18-12 and number, as specified in ISO 16143-3, hard drawn

with a tensile strength 1 600–1 900 MPa, on spools of about 300 kg, inspection document 3.1 as specified in ISO 10474 is

designated as follows:
5 t wire 3,00 R
ISO 16143-3 – X6CrNi18-12 +C1600 on spools of about 300 kg
ISO 10474 – 3.1
5 t wire 3,00 R
ISO 16143-3 – 4304-305-00-I +C1600 on spools of about 300 kg
ISO 10474 – 3.1
6 Manufacturing conditions
6.1 General

If not stated otherwise, the manufacturing procedure is at the discretion of the manufacturer.

6.2 Treatment conditions

The wire shall be specified in one of the following conditions, depending on the structure.

Condition +A: The wire is annealed as final heat treatment. Note that this material may be slightly deformed by

straightening, cold work, size control or finish. This will result in a slight increase of the tensile strength.

Condition +AT: The wire is solution annealed as final heat treatment. Note that this material may be slightly

deformed by straightening, cold work, size control or finish. This will result in a slight increase of the tensile

strength.

Condition +C: The wire is hard drawn as the last operation, in order to achieve higher strength.

6.3 Surface finish

If not specified otherwise, the surface finish of the wire is one of the following, depending on previous

processing steps.
© ISO 2012 – All rights reserved 3
---------------------- Page: 7 ----------------------
ISO/DIS 16143-3
6.3.1 Cold drawn

This is the natural finish resulting from the drawing to final size, generally with cold-drawing lubricant left on.

The finish will be duller for dry drawn wire or shinier for wire that is wet drawn. Fine sizes are commonly wet

drawn, whereas coarser sizes are commonly dry drawn. Special bright finishes, lubricant removal etc. required

for special end-use must be negotiated with the manufacturer.
6.3.2 Annealed

A dull matt appearance, necessarily associated with the dead soft condition of annealed wire when no final

drawing is permitted. With an additional surface treatment, a bright appearance can be realized.

6.3.3 Polished finish

A smooth and uniform bright finish of cold processed (+C) material obtained by mechanical smoothing,

burnishing, abrading or grinding.
7 Requirements
7.1 Manufacturing process

The steel-making process for products according to this part of ISO 16143 shall be in accordance with

ISO 4955 and ISO 16143-2. The wire processing, insofar as it is not specified in this part of ISO 16143 or

agreed between the parties, shall be at the discretion of the wire drawer.
7.2 Delivery condition
The product shall be supplied as described in Clause 6 and agreed in the order.
7.3 Chemical analysis
7.3.1 Cast analysis

The chemical composition requirements given in Table 1 apply with respect to the chemical composition of the

cast analysis.
7.3.2 Product analysis

The product analysis may deviate from the limiting values for the cast analysis given in Table 1 by the values

listed in Table 2.

NOTE It is under discussion to change the deviations to the values according to ASTM.

7.4 Mechanical properties
7.4.1 Mechanical properties for annealed wire

The tensile strength and elongation shall satisfy the requirements of Table 3. It specifies the mechanical

properties at room temperature in the annealed condition. For austenitic, austenitic-ferritic and precipitiation-

hardening steels, the wire is in the condition +AT, for ferritic and martensitic steels, this is in the condition +A.

7.4.2 Mechanical properties of hard-drawn wire

This wire is in condition (+C). The tensile strength will depend on the degree of work hardening, the specific

type of steel and the processing of the material. The tensile strength is specified by a minimum and maximum.

4 © ISO 2012 – All rights reserved
---------------------- Page: 8 ----------------------
ISO/DIS 16143-3

Not all the tensile strength levels listed in Table 4 can be achieved for all steel grades. Therefore, the required

tensile-strength level shall be agreed between the manufacturer and the purchaser at the time of ordering.

Table 4 gives an overview of the standardized tensile-strength levels and the corresponding minimum and

maximum.
7.5 Tolerances on dimension

For round wire, the purchaser shall specify normal tolerance (N) or restricted tolerance (R), as defined in

Table 5. For non-round wire, tolerances shall be agreed upon at the time of ordering.

The out of roundness is the difference between the largest and the smallest diameter in the same

cross-section of the wire. The cross-section shall be perpendicular to the longitudinal wire axis. The

out-of-roundness shall not exceed half the total diameter tolerance specified for coils.

8 Inspection, testing and conformance of products
8.1 General

The manufacturer shall carry out appropriate process control, inspection and testing to assure himself that the

delivery complies with the requirements of the order.
This includes the following:
 a suitable frequency of verification of the dimensions of the products;

 an adequate intensity of visual examination of the surface quality of the products;

 an appropriate frequency and type of test to ensure that the correct grade of steel is delivered.

The nature and frequency of these verifications, examinations and tests are determined by the manufacturer,

based on the degree of consistency that has been determined by the evidence of his quality system. In view of

this, verifications by specific tests for these requirements are not necessary, unless otherwise agreed.

8.2 Inspection and testing procedures and types of inspection documents

8.2.1 Products complying with this International Standard shall be ordered and delivered with one of the

inspection documents as specified in ISO 10474. The type of document shall be agreed upon at the time of

enquiry and order. If the order does not contain any specification of this type, a test report 2.2 shall be issued.

8.2.2 If, in accordance with the agreements made at the time of ordering, a test report is to be provided, this

shall cover:
a) the statement that the material complies with the requirements of the order;

b) the results of the cast analysis for all elements specified for the type of steel supplied.

8.2.3 If, in accordance with the agreements in the order, an inspection certificate 3.1 or 3.2 of ISO 10474 is

to be provided, the specific inspections and tests described in 8.3 shall be carried out and their results shall be

certified in the document.
In addition to 8.2.2, the document shall cover:
a) the results of the tests of Table 6;
b) the results of any optional test or inspection agreed when ordering.
© ISO 2012 – All rights reserved 5
---------------------- Page: 9 ----------------------
ISO/DIS 16143-3
8.3 Specific inspection and testing
8.3.1 Extent of testing

The tests to be carried out, the composition and size of the test units, and the number of sample products,

samples and test pieces to be taken are given in Table 6.
8.3.2 Selection and preparation of samples and test pieces

The general conditions for selection and preparation of samples and test pieces shall be in accordance with

ISO 377 and ISO 14284. The samples shall be taken from products in the delivery condition.

8.4 Test methods
8.4.1 Product analysis

Unless otherwise agreed when ordering, the choice of a suitable physical or chemical method of analysis to

determine the product analysis is at the discretion of the manufacturer. In cases of dispute, the analysis shall

be carried out by a laboratory approved by the two parties. In these cases, the reference method of analysis

shall be agreed, where possible, with reference to ISO/TR 9769.
8.4.2 Tensile test

The tensile test shall be carried out in accordance with ISO 6892-1 and it shall be performed under controlled

conditions in accordance with clause 5 of ISO 6892-1. The tensile strength (R ) shall be measured and, for

annealed material only, the elongation (A).
8.4.3 Measurement of the wire diameter

The diameter of the round wire shall be measured in a cross-section perpendicular to the wire axis with a

micrometer of appropriate precision. Any dimensional measurement methods to be used on non-round wire

shall be agreed upon at the time of ordering.
8.5 Retests
Retests shall be in accordance with ISO 404.
9 Packing and Marking

9.1 Packing shall be such that it permits normal handling and shipping without damage. The dimensions of

the units shall be agreed between the manufacturer and the purchaser at the time of ordering

9.2 The products shall be marked with the manufacturer's trademark or symbol, the steel name or number,

the manufacturing condition of the wire, the tensile level (for hard-drawn wire). The product shall also be

marked with cast number, thickness or dimension as well as an identification number related to an appropriate

inspection certificate.

9.3 Unless otherwise agreed the method of marking and the material of marking shall be at the option of the

manufacturer. Its quality shall be such that it shall be durable for at least one year, can withstand normal

handling and can be stored in unheated storage under cover. Corrosion resistance of the product shall not be

impaired by the marking.

9.4 Each unit shall be marked by means of a label attached to the coil, spool or bundle or, by agreement at

the time of enquiry and order, by inking, adhesive labels, electrolytic etching or stamping;

6 © ISO 2012 – All rights reserved
---------------------- Page: 10 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 16143-3
Table 1 — Chemical composition (cast analysis) for wire

(for information only – chemical composition as listed in ISO 16143-2 and ISO 4955)

Steel designation
% (mass fraction)
Name ISO-number C Si Mn P S Cr Mo Ni N Others
Austenitic steels
0,05 to

X10CrNi18-8 4310-301-00-I 2,00 2,00 0,045 0,030 16,0 to 19,0 0,80 6,0 to 9,5 0,10 —

0,15

X2CrNi18-9 4307-304-03-I 0,030 1,00 2,00 0,045 0,030 17,5 to 19,5 — 8,0 to 10,0 0,10 —

0,04 to
X7CrNi18-9 4948-304-09-I 1,00 2,00 0,045 0,030 17,5 to 19,5 — 8,0 to 11,0 0,10 —
0,10

X10CrNiS18-9 4305-303-00-I 0,12 1,00 2,00 0,060 ≥ 0,15 17,0 to 19,0 — 8,0 to 10,0 0,10 Cu: 1,00

Cu: 3,0 to

X3CrNiCu18-9-4 4567-304-30-I 0,040 1,00 2,00 0,045 0,030 17,0 to 19,0 — 8,0 to 10,5 0,10

4,0
Cu: 1,40 to

X6CrNiCuS18-9-2 4570-303-31-I 0,08 1,00 2,00 0,045 ≥ 0,15 17,0 to 19,0 0,60 8,0 to 10,0 0,10

1,80
0,10 to

X5CrNiN19-9 4315-304-51-I 0,07 1,00 2,50 0,045 0,030 18,0 to 20,0 — 8,0 to 11,0 —

0,16

X5CrNi18-10 4301-304-00-I 0,07 1,00 2,00 0,045 0,030 17,5 to 19,5 — 8,0 to 10,5 0,10 —

Ti: 5xC to
X6CrNiTi18-10 4541-321-00-I 0,08 1,00 2,00 0,045 0,030 17,0 to 19,0 — —
9,0 to 12,0
0,70
X2CrNi19-11 4306-304-03-I 0,030 1,00 2,00 0,045 0,030 18,0 to 20,0 — 0,10 —
10,0 to 12,0

X6CrNi18-12 4303-305-00-I 0,08 1,00 2,00 0,045 0,030 17,0 to 19,0 — 10,5 to 13,0 0,10 —

© ISO 2012 – All rights reserved 7
---------------------- Page: 11 ----------------------
ISO/DIS 16143-3
Table 1 (continued)
Steel designation
% (mass fraction)
Name ISO-number C Si Mn P S Cr Mo Ni N Others
Austenitic steels
0,05 to 1,40 to 20,0 to 10,0 to 0,14 to Ce: 0,03 to
X7CrNiSiNCe21-11 4835-308-15-U 0,80 0,040 0,030 —
0,10 2,00 22,0 12,0 0,20 0,08
6,5 to 15,0 to 0,10 to Cu: 2,00 to
X8CrMnCuN17-8-3 4597-204-76-I 0,10 2,00 0,040 0,030 1,00 3,00
9,0 18,0 0,30 3,5
7,5 to 17,0 to 4,0 to 0,15 to
X12CrMnNiN18-9-5 4373-202-00-I 0,15 1,00 0,060 0,030 — —
10,0 19,0 6,0 0,30
0,07 to 0,50 to 5,0 to 17,5 to 6,5 to 0,20 to
X11CrNiMnN19-8-6 4369-202-91-I 0,030 0,015 — —
0,15 1,00 7,5 19,5 8,5 0,30
22,0 to 12,0 to
X18CrNi23-13 4833-309-08-I 0,20 1,00 2,00 0,045 0,030 — 0,10 —
24,0 15,0
24,0 to 20,0 to
X1CrNi25-21 4335-310-02-I 0,020 0,25 2,00 0,025 0,010 0,20 0,10 —
26,0 22,0
24,0 to 19,0 to
X8CrNi25-21 0,10 1,50 2,00 0,045 0,030 — 0,10 —
4845-310-08-E
26,0 22,0
Austenitic steels with Mo
10,0 to
16,5 to
X2CrNiMo17-12-2 4404-316-03-I 0,030 1,00 2,00 0,045 0,030 2,00 to 3,00 0,10 —
18,5
13,0
16,5 to 10,0 to
X5CrNiMo17-12-2 4401-316-00-I 0,07 1,00 2,00 0,0450,030 2,00 to 3,00 0,10 —
18,5 13,0
16,5 to 10,5 to Ti: 5xC to
X6CrNiMoTi17-12-2 4571-316-35-I 0,08 1,00 2,00 0,045 0,030 2,00 to 2,50 —
18,5 13,5 0,70
16,5 to 10,5 to
X2CrNiMo17-12-3 4432-316-03-I 0,030 1,00 2,00 0,045 0,030 2,50 to 3,00 0,10 —
18,5 13,0
16,5 to 10,5 to
X3CrNiMo17-12-3 4436-316-00-I 0,05 1,00 2,00 0,0450,030 2,50 to 3,00 0,10 —
18,5 13,0
8 © ISO 2012 – All rights reserved
---------------------- Page: 12 ----------------------
ISO/DIS 16143-3
Table 1 (continued)
Steel designation
% (mass fraction)
Name ISO-number C Si Mn P S Cr Mo Ni N Others
Austenitic steels with Mo
17,0 to 2,50 to 12,5 to
X2CrNiMo18-14-3 4435-316-91-I 0,030 1,00 2,00 0,045 0,015 0,10 —
19,0 3,00 15,0
16,5 to 3,0 to 10,5 to 0,10 to
X2CrNiMoN18-12-4 4434-317-53-I 0,030 1,00 2,00 0,045 0,030 —
19,5 4,0 14,0 0,20
19,5 to 6,0 to 17,5 to 0,18 to
X1CrNiMoCuN20-18-7 4547-312-54-I 0,020 0,70 1,00 0,035 0,015 Cu: 0,50 to 1,00
20,5 7,0 18,5 0,25
24,0 to 2,00 to 21,0 to 0,10 to
X1CrNiMoN25-22-2 4466-310-50-E 0,020 0,70 2,00 0,025 0,010 —
26,0 2,50 23,0 0,16
Austenitic steels with Ni/Co as main alloying elements
19,0 to 4,0 to 23,5 to

X1NiCrMoCu25-20-5 4539-089-04-I 0,020 0,75 2,00 0,035 0,015 0,15 Cu: 1,20 to 2,00

22,0 5,0 26,0
19,0 to 6,0 to 24,0 to 0,15 to
X1NiCrMoCuN25-20-7 4529-089-26-I 0,020 0,75 2,00 0,035 0,015 Cu: 0,50 to 1,50
21,0 7,0 26,0 0,25
Al: 0,15 to 0,60
19,0 to 30,0 to
X8NiCrAlTi32-21 0,10 1,00 1,50 0,015 0,015 — — Ti: 0,15 to 0,60
4876-088-00-I
23,0 34,0
Cu: 0,70
26,0 to 3,0 to 30,0 to

X1NiCrMoCu31-27-4 4563-080-28-I 0,020 0,70 2,00 0,030 0,010 0,10 Cu: 0,70 to 1,50

28,0 4,0 32,0
© ISO 2012 – All rights reserved 9
---------------------- Page: 13 ----------------------
ISO/DIS 16143-3
Table 1 (continued)
Steel designation
% (mass fraction)
Name ISO-number C Si Mn P S Cr Mo Ni N Others
Austenitic-ferritic (duplex) steels
4,0 to 21,0 to 0,10 to 1,35 to 0,20 to
e e
X2CrMnNiN21-5-1 4162-321-01-E 0,040 1,00 0,040 0,015 Cu: 0,10 to 0,80
6,0 22,0 0,80 1,90 0,25
22,0 to 0,10 to 3,5 to 0,05 to
X2CrNiN23-4 4362-323-04-I 0,0301,00 2,00 0,0350,015 Cu: 0,10 to 0,60
24,5 0,60 5,5 0,20
21,0 to 2,5 to 4,5 to 0,10 to
X2CrNiMoN22-5-3 4462-318-03-I 0,0301,00 2,00 0,035 0,015 —
23,0 3,5 6,5 0,22
24,0 to 3,0 to 6,0 to 0,24 to
X2CrNiMoN25-7-4 4410-327-50-E 0,0301,00 2,00 0,035 0,015 —
26,0 4,5 8,0 0,35
26,0 to 4,0 to 5,5 to 0,30 to Cu: 1,00
X2CrNiMoCoN28-8-5-1 4658-327-07-U 0,030 0,50 1,50 0,035 0,010
29,0 5,0 9,5 0,50 Co: 0,50 to 2,00
Ferritic steels
16,
...