Heat treatable steels, alloy steels and free-cutting steels - Part 5: Nitriding steels (ISO 683-5:2017)

ISO 683-5:2017 gives the technical delivery requirements for
-      semi-finished products, e.g. blooms, billets, slabs (see note 1),
-      bars (see note 1),
-      wire rod,
-      hot-rolled plates (see note 2), and
-      hammer or drop forgings (see note 1)
manufactured from the nitriding steels listed in Table 3 and supplied in one of the heat-treatment conditions given for the different types of products in Table 1, rows 2 to 5, and in one of the surface conditions given in Table 2.
The steels are generally intended for the fabrication of quenched and tempered and, subsequently, nitriding machine parts.
The requirements for mechanical properties given in this document are restricted to the sizes given in Table 6.
NOTE 1       Hammer-forged semi-finished products (blooms, billets, slabs, etc.), seamless rolled rings and hammer-forged bars are in the following covered under semi-finished products or bars and not under the term "hammer and drop forgings".
NOTE 2       The term "plate" includes in the following also wide flats unless otherwise stated.
In special cases, variations in these technical delivery requirements or additions to these requirements can form the subject of an agreement at the time of enquiry and order (see 5.2 and Annex B).
In addition to this document, the general technical delivery requirements of ISO 404 are applicable.

Für eine Wärmebehandlung bestimmte Stähle, legierte Stähle und Automatenstähle - Teil 5: Nitrierstähle (ISO 683-5:2017)

Dieses Dokument legt die Technischen Lieferbedingungen fest für:
- Halbzeug, zum Beispiel: Vorblöcke, Knüppel, Brammen (siehe Anmerkung 1),
- Stäbe (siehe Anmerkung 1),
- Walzdraht,
- warmgewalzte Bleche (siehe Anmerkung 2), und
- Freiform- oder Gesenkschmiedestücke (siehe Anmerkung 1).
aus den in Tabelle 3 aufgeführten Nitrierstählen, die in einem der für die verschiedenen Erzeugnisformen in Tabelle 1, Zeilen 2 bis 5 angegebenen Wärmebehandlungszustände und in einer der in Tabelle 2 angeführten Oberflächenausführungen geliefert werden.
Diese Stähle sind im Allgemeinen zur Herstellung vergüteter und anschließend nitrierter Maschinenteile vorgesehen.
Die Anforderungen an die mechanischen Eigenschaften nach diesem Dokument sind auf die in der Tabelle 6 angegebenen Größen beschränkt.
ANMERKUNG 1 Freiformgeschmiedete Halbzeuge (Blöcke, Knüppel, Brammen usw.), nahtlos gewalzte Ringe und freiform¬geschmiedeter Stabstahl sind im Folgenden unter den Begriffen „Halbzeug“ und „Stabstahl“ und nicht unter dem Begriff „Freiform- und Gesenkschmiedestücke“ erfasst.
ANMERKUNG 2 Der Begriff „Bleche“ schließt soweit nicht anders erwähnt auch den Begriff Breitflachstahl mit ein.
In Sonderfällen können bei der Anfrage und Bestellung Abweichungen von oder Zusätze zu diesen technischen Lieferbedingungen vereinbart werden (siehe 5.2 und Anhang B).
Zusätzlich zu diesem Dokument sind die allgemeinen technischen Lieferbedingungen nach ISO 404 anzuwenden.

Aciers pour traitement thermique, aciers alliés et aciers pour décolletage - Partie 5 : Aciers pour nitruration (ISO 683-5:2017)

Le présent document fournit les conditions techniques de livraison des
—    demi-produits, par exemple blooms, billettes, brames (voir Note 1),
—    barres (voir Note 1),
—    fil machine,
—    tôles laminées à chaud (voir Note 2), et
—    pièces forgées par martelage ou estampage (voir Note 1)
fabriqués à partir des aciers pour nitruration énumérés dans le Tableau 3 et livrés dans l’un des états de traitement thermique donnés pour les différents types de produits dans le Tableau 1, aux lignes 2 à 5, et dans l’un des états de surface donnés dans le Tableau 2.
Les aciers sont en général destinés à la fabrication de pièces mécaniques trempées et revenues, puis nitrurées.
Les exigences relatives aux caractéristiques mécaniques données dans le présent document sont limitées aux dimensions données dans le Tableau 6.
NOTE 1        Les demi-produits forgés par martelage (blooms, billettes, brames, etc.), les couronnes laminées sans soudure et les barres forgées par martelage figurent parmi les demi-produits ou les barres, et non sous l’appellation «pièces forgées par martelage et estampage».
NOTE 2        Le terme «tôle» comprend également les larges plats, sauf indication contraire.
Dans certains cas particuliers, il est possible de déroger aux présentes conditions techniques de livraison ou d’en ajouter d’autres, à condition d’en convenir au moment de l’appel d’offres et de la commande (voir 5.2 et Annexe B).
En complément du présent document, les conditions générales techniques de livraison de l’ISO 404 sont applicables.

Toplotno obdelana, legirana in avtomatna jekla - 5. del: Jekla za nitridiranje (ISO 683-5:2017)

General Information

Status
Published
Publication Date
18-May-2021
Withdrawal Date
29-Nov-2021
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
19-May-2021
Due Date
06-Jan-2023
Completion Date
19-May-2021

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SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST EN 10085:2002
Toplotno obdelana, legirana in avtomatna jekla - 5. del: Jekla za nitridiranje (ISO
683-5:2017)
Heat treatable steels, alloy steels and free-cutting steels - Part 5: Nitriding steels (ISO
683-5:2017)
Für eine Wärmebehandlung bestimmte Stähle, legierte Stähle und Automatenstähle -
Teil 5: Nitrierstähle (ISO 683-5:2017)
Aciers pour traitement thermique, aciers alliés et aciers pour décolletage - Partie 5:
Aciers pour nitruration (ISO 683-5:2017)
Ta slovenski standard je istoveten z: EN ISO 683-5:2021
ICS:
77.140.10 Jekla za toplotno obdelavo Heat-treatable steels
77.140.20 Visokokakovostna jekla Stainless steels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 683-5
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2021
EUROPÄISCHE NORM
ICS 77.140.10; 77.140.20 Supersedes EN 10085:2001
English Version
Heat treatable steels, alloy steels and free-cutting steels -
Part 5: Nitriding steels (ISO 683-5:2017)
Aciers pour traitement thermique, aciers alliés et Für eine Wärmebehandlung bestimmte Stähle, legierte
aciers pour décolletage - Partie 5: Aciers pour Stähle und Automatenstähle - Teil 5: Nitrierstähle (ISO
nitruration (ISO 683-5:2017) 683-5:2017)
This European Standard was approved by CEN on 9 May 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 683-5:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 683-5:2017 has been prepared by Technical Committee ISO/TC 17 "Steel” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 683-5:2021 by
Technical Committee CEN/TC 459/SC 5 “Steels for heat treatment, alloy steels, free-cutting steels and
stainless steels” the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by November 2021, and conflicting national standards
shall be withdrawn at the latest by November 2021.
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 10085:2001.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 683-5:2017 has been approved by CEN as EN ISO 683-5:2021 without any modification.
The European steel numbers to the steel grades are to be found in informative Annex C.
The references to following European standards are given for information:
EN 10017, Steel rod for drawing and/or cold rolling – Dimensions and tolerances
EN 10029, Hot-rolled steel plates 3 mm thick or above – Tolerances on dimensions and shape
EN 10048, Hot-rolled narrow steel strip – Tolerances on dimensions and shape
EN 10051, Continuously hot-rolled strip and plate/sheet cut from wide strip of non-alloy and alloy steels –
Tolerances on dimensions and shape
EN 10058, Hot rolled flat steel bars and steel wide flats for general purposes – Dimensions and tolerances
on shape and dimensions
EN 10059, Hot rolled square steel bars for general purposes – Dimensions and tolerances on shape and
dimensions
EN 10060, Hot rolled round steel bars - Dimensions and tolerances on shape and dimensions
EN 10061, Hot rolled hexagon steel bars – Dimensions and tolerances on shape and dimensions
EN 10108, Round steel rod for cold heading and cold extrusion - Dimensions and tolerances
EN 10140, Cold rolled narrow steel strip - Tolerances on dimensions and shape
EN 10160, Ultrasonic testing of steel flat product of thickness equal to or greater than 6 mm (reflection
method)
EN 10204, Metallic products - Types of inspection documents
EN 10308, Non-destructive testing – Ultrasonic testing of steel bars

INTERNATIONAL ISO
STANDARD 683-5
Second edition
2017-07
Heat treatable steels, alloy steels and
free-cutting steels —
Part 5:
Nitriding steels
Aciers pour traitement thermique, aciers alliés et aciers pour
décolletage —
Partie 5: Aciers pour nitruration
Reference number
ISO 683-5:2017(E)
©
ISO 2017
ISO 683-5:2017(E)
© 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.
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ii © ISO 2017 – All rights reserved

ISO 683-5:2017(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Classification and designation . 3
4.1 Classification . 3
4.2 Designation . 3
5 Information to be supplied by the purchaser. 3
5.1 Mandatory information . 3
5.2 Options/supplementary or special requirements. 3
5.3 Ordering example . 4
6 Manufacturing process . 4
6.1 General . 4
6.2 Deoxidization . 4
6.3 Heat treatment and surface condition at delivery . 4
6.3.1 Normal condition at delivery . 4
6.3.2 Particular heat-treatment condition . . 4
6.3.3 Particular surface conditions . 4
6.4 Traceability of the cast . 4
7 Requirements . 4
7.1 Chemical composition, hardness and mechanical properties . 4
7.1.1 General. 4
7.1.2 Chemical composition . 5
7.1.3 Mechanical properties . 5
7.2 Machinability . 5
7.3 Cold shearability . 5
7.4 Grain size . 5
7.5 Non-metallic inclusions . 5
7.5.1 Microscopic inclusions . 5
7.5.2 Macroscopic inclusions . 5
7.6 Internal soundness . 5
7.7 Surface quality . 5
7.8 Decarburization . 6
7.9 Shape, dimensions and tolerances . 6
8 Inspection . 6
8.1 Testing procedures and types of documents . 6
8.2 Frequency of testing . 7
8.3 Specific inspection and testing .
...

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