ISO 9477:2023
(Main)High-strength cast steels for general engineering and structural purposes
High-strength cast steels for general engineering and structural purposes
This document specifies requirements for four grades of heat-treated cast carbon and alloy steels for general engineering and structural purposes. In cases where castings are produced by welding component parts together, this document does not cover the welding process or the properties of the weldment. The four steel grades are intended for service at ambient temperature.
Aciers moulés à haute résistance pour construction mécanique et construction métallique d'usage général
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INTERNATIONAL ISO
STANDARD 9477
Third edition
2023-11
High-strength cast steels for general
engineering and structural purposes
Aciers moulés à haute résistance pour construction mécanique et
construction métallique d'usage général
Reference number
ISO 9477:2023(E)
© ISO 2023
---------------------- Page: 1 ----------------------
ISO 9477:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
© ISO 2023 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 9477:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General conditions for delivery . 1
5 Heat treatment .1
6 Chemical requirements . 1
7 Mechanical properties .2
8 Supplementary requirements . 2
iii
© ISO 2023 – All rights reserved
---------------------- Page: 3 ----------------------
ISO 9477:2023(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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all
such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of st
...
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 9477
ISO/TC 17/SC 11
High-strength cast steels for general
Secretariat: ANSI
engineering and structural purposes
Voting begins on:
2023-08-23
Aciers moulés à haute résistance pour construction mécanique et
construction métallique d'usage général
Voting terminates on:
2023-10-18
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 SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 9477:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023
---------------------- Page: 1 ----------------------
ISO/FDIS 9477:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 9477
ISO/TC 17/SC 11
High-strength cast steels for general
Secretariat: ANSI
engineering and structural purposes
Voting begins on:
Aciers moulés à haute résistance pour construction mécanique et
construction métallique d'usage général
Voting terminates on:
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: +41 22 749 01 11
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: copyright@iso.org
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
ISO/FDIS 9477:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
© ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023
---------------------- Page: 2 ----------------------
ISO/FDIS 9477:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General conditions for delivery . 1
5 Heat treatment .1
6 Chemical requirements . 1
7 Mechanical properties .2
8 Supplementary requirements . 2
iii
© ISO 2023 – All rights reserved
---------------------- Page: 3 ----------------------
ISO/FDIS 9477:2023(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. Internationa
...
2022-11-12
ISO/DISFDIS 9477:2022(E)
ISO/TC17/SC11TC 17/SC 11
Secretariat: ANSI
Date: 2023-08-09
High-strength cast steels for general engineering and structural
purposes
Aciers moulés à haute resistancerésistance pour construction mecaniquemécanique et construction
métallique d’usage generald'usage général
FDIS stage
---------------------- Page: 1 ----------------------
ISO/FDIS 9477:2023(E)
© ISO 2022 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Fax: +41 22 749 09 47
EmailE-mail: copyright@iso.org
Website: www.iso.orgwww.iso.org
Published in Switzerland
ii © ISO 2023 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/DIS 9477:2022(E)
Contents Page
Foreword iv
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 General conditions for delivery 1
5 Heat treatment 1
6 Chemical requirements 1
7 Mechanical properties 2
8 Supplementary requirements 2
ii © ISO 2022 – All rights reserved
---------------------- Page: 3 ----------------------
ISO/DIS 9477:2022(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 document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directiveswww.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of
(a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received notice
of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents.www.iso.org/patents. ISO shall not be held responsible for
identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of 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
www.iso.org/iso/foreword.htmlwww.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 11, Steel
castings.
This third edition cancels and replaces the second edition (ISO 9477:2015), which has been technically
revised:.
— The main changes are as follows:
— the mandatory Terms and definitions clause (see Clause 3) has been added and subsequent clauses
have been renumbered;
— in Clause 6 (former Clause 5), silicon content has been deleted;
— editorial revisionchanges have been applied.
Commented [GC1]: Please provide brief list of technical
changes compared to the previous edition.
Any feedback or questions on this document should be directed to the user’s national standards body. A
Commented [GC2]: These are editorial changes.
complete listing of these bodies can be found at www.iso.org/members.html.
© ISO 2022 – All rights reserved iii
---------------------- Page: 4 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 9477:2022(E)
www.iso.org/members.html.
High-strength cast steels for general engineering and structural
purposes
1 Scope
This document specifies requirements for four grades of heat-treated cast carbon and alloy steels for
general engineering and structural purposes.
In cases wh
...
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