Steel sheet, cold-reduced, of higher yield strength with improved formability

ISO 13887:2017 is applicable to all grades of cold-reduced steel sheet of higher yield strength with improved formability. The steel is made according to fine-grain practice and has a suitable chemical composition to provide improved formability. The product is intended for the fabrication of parts requiring better formability. It is generally used in the delivered condition. ISO 13887:2017 does not apply to steels designated as commercial quality or drawing quality (see ISO 3574), steels of structural quality (see ISO 4997) or steels of high tensile strength and low yield point with improved formability (see ISO 14590).

Tôles laminées à froid en acier à limite d'élasticité et aptitude au formage accrues

General Information

Status
Published
Publication Date
30-Oct-2017
Current Stage
6060 - International Standard published
Start Date
31-Oct-2017
Completion Date
31-Oct-2017
Ref Project

RELATIONS

Buy Standard

Standard
ISO 13887:2017 - Steel sheet, cold-reduced, of higher yield strength with improved formability
English language
7 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

INTERNATIONAL ISO
STANDARD 13887
Fourth edition
2017-10
Steel sheet, cold-reduced, of higher
yield strength with improved
formability
Tôles laminées à froid en acier à limite d'élasticité et aptitude au
formage accrues
Reference number
ISO 13887:2017(E)
ISO 2017
---------------------- Page: 1 ----------------------
ISO 13887:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland

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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 13887:2017(E)
Contents Page

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

Introduction ..................................................................................................................................................................................................................................v

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

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

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Dimensions ................................................................................................................................................................................................................. 1

5 Conditions of manufacture ........................................................................................................................................................................ 2

5.1 Steelmaking ............................................................................................................................................................................................... 2

5.2 Chemical composition ...................................................................................................................................................................... 2

5.3 Chemical analysis .................................................................................................................................................................................. 2

5.3.1 Heat analysis ...................................................................... .................................................................................................. 2

5.3.2 Product analysis ............................................................................................................................................................... 3

5.4 Mechanical properties ...................................................................................................................................................................... 3

5.5 Application ................................................................................................................................................................................................. 4

5.6 Weldability .................................................................................................................................................................................................. 4

5.7 Surface condition .................................................................................................................................................................................. 4

5.8 Surface finish ............................................................................................................................................................................................ 4

5.9 Oiling ................................................................................................................................................................................................................ 4

5.10 Dimensional and shape tolerances ........................................................................................................................................ 4

6 Sampling — Tensile test ................................................................................................................................................................................ 4

7 Test methods — Tensile test ..................................................................................................................................................................... 4

8 Retests ............................................................................................................................................................................................................................. 5

8.1 Machining and flaws........................................................................................................................................................................... 5

8.2 Elongation ................................................................................................................................................................................................... 5

8.3 Additional tests ....................................................................................................................................................................................... 5

9 Resubmission ........................................................................................................................................................................................................... 5

10 Workmanship .......................................................................................................................................................................................................... 5

11 Inspection and tests .......................................................................................................................................................................................... 5

12 Coil size ........................................................................................................................................................................................................................... 6

13 Marking .......................................................................................................................................................................................................................... 6

14 Information to be supplied by the purchaser......................................................................................................................... 6

Bibliography ................................................................................................................................................................................................................................ 7

© ISO 2017 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 13887:2017(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 voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: www.iso.org/iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 12, Continuous

mill flat rolled products.

This fourth edition cancels and replaces the third edition (ISO 13887:2011), which has been technically

revised.
iv © ISO 2017 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 13887:2017(E)
Introduction

With the combination of higher strength and improved formability derived from the tests outlined in

this document, it is possible to obtain savings in mass along with better weldability.

References [4] and [5] may be reviewed for comparison with this document. The relationship between

the standards might only be approximate; therefore, the respective standards should be consulted

for actual requirements. Those who use these documents will need to determine which specifications

address their needs.
© ISO 2017 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 13887:2017(E)
Steel sheet, cold-reduced, of higher yield strength with
improved formability
1 Scope

This document is applicable to all grades of cold-reduced steel sheet of higher yield strength with

improved formability. The steel is made according to fine-grain practice and has a suitable chemical

composition to provide improved formability. The product is intended for the fabrication of parts

requiring better formability. It is generally used in the delivered condition.

This document does not apply to steels designated as commercial quality or drawing quality (see

ISO 3574), steels of structural quality (see ISO 4997) or steels of high tensile strength and low yield

point with improved formability (see ISO 14590).
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.

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

ISO 16162, Cold-rolled steel sheet products — Dimensional and shape tolerances
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

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

— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
cold-reduced steel sheet

product obtained from hot-rolled descaled steel sheet by cold-reducing to the required sheet thickness

followed by annealing to recrystallize the grain structure
3.2
lot

up to a specified quantity of steel sheet of the same designation rolled to the same thickness

4 Dimensions

Cold-reduced steel sheet of higher yield strength with improved formability is produced in thicknesse

...

Questions, Comments and Discussion

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