ISO 3506-3

Fasteners — Mechanical properties of corrosion resistant stainless steel fasteners — Part 3: Set screws (and similar fasteners not under tensile stress) with specified grades and hardness classes

ISO 3506-3:2009 specifies the mechanical properties of set screws and similar fasteners not under tensile stress made of austenitic stainless steel, when tested over an ambient temperature range of 10 °C to 35 °C. Properties vary at higher or lower temperatures. ISO 3506-3:2009 applies to set screws and similar fasteners: - with nominal thread diameter 1,6 mm ≤ d ≤ 24 mm; - of triangular ISO metric threads with diameters and pitches in accordance with ISO 68-1, ISO 261 and ISO 262; - of any shape. It does not apply to screws with special properties, such as weldability.

Fixations — Caractéristiques mécaniques des fixations en acier inoxydable résistant à la corrosion — Partie 3: Vis sans tête (et fixations similaires non soumises à des contraintes de traction) de grades et classes de dureté spécifiés

L'ISO 3506-3:2009 spécifie les caractéristiques mécaniques des vis sans tête et des éléments de fixation filetés similaires non soumis à des contraintes de traction, constitués d'aciers inoxydables austénitiques, soumis à essai à une température ambiante comprise entre 10 °C et 35 °C. Ces caractéristiques varient selon la valeur plus ou moins élevée de la température. L'ISO 3506-3:2009 s'applique aux vis sans tête et aux éléments de fixation filetés similaires de diamètre nominal de filetage 1,6 mm ≤ d ≤ 24 mm, à filetage métrique ISO triangulaire dont le diamètre et le pas sont conformes à l'ISO 68-1, l'ISO 261 et à l'ISO 262, et de forme quelconque. Elle ne s'applique pas aux vis possédant des caractéristiques spéciales telles que la soudabilité.

General Information

• Status: Not Published
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: ISO/TC 2 - Fasteners
• Drafting Committee: ISO/TC 2 - Fasteners
• Current Stage: 6000 - International Standard under publication
• Due Date: 19-Dec-2024
• Completion Date: 19-Dec-2024

Relations

• Consolidates: ISO/IEC TR 15446:2017 - Information technology — Security techniques — Guidance for the production of protection profiles and security targets
• Effective Date: 06-Jun-2022
• Revises: ISO 3506-3:2009 - Mechanical properties of corrosion-resistant stainless steel fasteners — Part 3: Set screws and similar fasteners not under tensile stress
• Effective Date: 06-Jun-2022

Standards Content (Sample)

FINAL DRAFT
International
Standard
ISO/FDIS 3506-3
ISO/TC 2
Fasteners — Mechanical properties
Secretariat: DIN
of corrosion resistant stainless steel
Voting begins on:
fasteners —
2024-10-23
Part 3:
Voting terminates on:
2024-12-18
Set screws (and similar fasteners
not under tensile stress) with
specified grades and hardness
classes
Fixations — Caractéristiques mécaniques des fixations en acier
inoxydable résistant à la corrosion —
Partie 3: Vis sans tête (et fixations similaires non soumises à des
contraintes de traction) de grades et classes de dureté spécifiées
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
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/CEN PARALLEL PROCESSING 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.
Reference number
ISO/FDIS 3506-3:2024(en) © ISO 2024

FINAL DRAFT
ISO/FDIS 3506-3:2024(en)
International
Standard
ISO/FDIS 3506-3
ISO/TC 2
Fasteners — Mechanical properties
Secretariat: DIN
of corrosion resistant stainless steel
Voting begins on:
fasteners —
Part 3:
Voting terminates on:
Set screws (and similar fasteners not
under tensile stress) with specified
grades and hardness classes
Fixations — Caractéristiques mécaniques des fixations en acier
inoxydable résistant à la corrosion —
Partie 3: Vis sans tête (et fixations similaires non soumises à des
contraintes de traction) de grades et classes de dureté spécifiées
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.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 3506-3:2024(en) © ISO 2024

ii
ISO/FDIS 3506-3:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Designation system for stainless steel grades and hardness classes . 2
4.1 General .2
4.2 Designation of stainless steel grades (first block) .3
4.3 Designation of hardness classes (second block) .3
5 Materials . 4
5.1 Chemical composition .4
5.2 Surface condition (finish and/or coating) .5
5.3 Corrosion resistance .5
5.4 Magnetic properties .5
6 Requirements for mechanical and physical properties . 6
6.1 General .6
6.2 Hardness requirements .6
6.3 Proof torque requirements for socket set screws .6
7 Inspection . 6
7.1 Manufacturer’s inspection .6
7.2 Supplier’s inspection .6
7.3 Purchaser’s inspection .7
7.4 Delivery of test results .7
8 Test methods . 7
8.1 General .7
8.2 Hardness test for set screws .7
8.2.1 General .7
8.2.2 Test procedure.7
8.2.3 Test result and requirement.7
8.3 Proof torque test for socket set screws .8
8.3.1 General .8
8.3.2 Test procedure.8
8.3.3 Test result and requirement.10
9 Marking and labelling . 10
9.1 General .10
9.2 Marking on the set screws .10
Bibliography .12

iii
ISO/FDIS 3506-3:2024(en)
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 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.html.
This document was prepared by Technical Committee ISO/TC 2, Fasteners, in collaboration with the
European Committee for Standardization (CEN) Technical Committee CEN/TC 185 Fasteners, in accordance
with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 3506-3:2009), which has been technically
revised.
The main changes are as follows:
— annexes common to several parts of the ISO 3506 series have been withdrawn from this document and
are now included in the new ISO 3506-6 which is to be used with this document;
— austenitic stainless steel of grade A8 and duplex (austenitic-ferritic) stainless steels of grades D2 to D8
for hardness class 21H have been added (see Figure 1);
— operational temperature ranges have been clarified (see Clause 1);
— terms and definitions have been added (see Clause 3);
— wording for surface conditions and corrosion resistance have been improved (see 5.2 and 5.3);
— manufacturer’s, supplier’s and purchaser’s inspections have been added (see Clause 7);
— hardness test and proof torque test methods have been improved (see Clause 8);
— marking and labelling have been improved (see Clause 9);
— structure and content of this document have been brought in line with other parts of ISO 3506 published
recently.
A list of all parts in the ISO 3506 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
ISO/FDIS 3506-3:2024(en)
Introduction
The properties of stainless steel fasteners result from the chemical composition of the material (especially
corrosion resistance) and from the mechanical properties due to manufacturing process.
...

Formatted
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
ISO/FDIS 3506-3:2024(en)
Style Definition
...
ISO/TC 2/WG 17
Style Definition
...
Style Definition
...
Secretariat: DIN
Style Definition
...
Style Definition
Date: 2024-09-26xx .
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Fasteners — Mechanical properties of corrosion resistant stainless
Style Definition
...
steel fasteners —
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Part 3:
Style Definition
...
Set screws (and similar fasteners not under tensile stress) with
Style Definition
...
specified grades and hardness classes
Style Definition
...
Style Definition
...
Fixations — Caractéristiques mécaniques des fixations en acier inoxydable résistant à la corrosion —
Style Definition
...
Partie 3: Vis sans tête (et fixations similaires non soumises à des contraintes de traction) de grades et classes de Style Definition
...
dureté spécifiées
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
FDIS stage
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
ISO/FDIS 3506-3:2024 (en) Formatted: Font: 11 pt
Formatted: Font: 11 pt
Formatted: HeaderCentered, Space After: 0 pt, Line
spacing: single
Commented [eXtyles1]: The reference "ISO 2024" is to a
withdrawn standard
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
Formatted: Default Paragraph Font
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 Formatted: Default Paragraph Font
at the address below or ISO'sISO’s member body in the country of the requester.
ISO Copyright Officecopyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva Formatted: zzCopyright address, Adjust space between Latin
and Asian text, Adjust space between Asian text and numbers
Phone: + 41 22 749 01 11
Email: [e-mail]
E-mail: [e-mail]
Website: www.iso.orgwww.iso.org
Formatted: zzCopyright address, Adjust space between Latin
and Asian text, Adjust space between Asian text and numbers
Published in Switzerland.
Formatted: FooterPageRomanNumber
2 © ISO 2024 – All rights reserved
ii
Formatted: Font: 11 pt
ISO/FDIS 3506-43:2024(en)
Formatted: Font: 11 pt
Formatted: HeaderCentered, Left, Space After: 0 pt, Line
spacing: single
Contents
Foreword . iv
Introduction . vi
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Designation system for stainless steel grades and hardness classes . 3
4.1 General. 3
4.2 Designation of stainless steel grades (first block) . 4
4.3 Designation of hardness classes (second block) . 4
5 Materials . 4
5.1 Chemical composition . 4
5.2 Surface condition (finish and/or coating) . 6
5.3 Corrosion resistance . 6
5.4 Magnetic properties . 6
6 Requirements for mechanical and physical properties . 6
6.1 General. 6
6.2 Hardness requirements . 6
6.3 Proof torque requirements for socket set screws . 7
7 Inspection . 7
7.1 Manufacturer’s inspection . 7
7.2 Supplier’s inspection . 7
7.3 Purchaser’s inspection . 7
7.4 Delivery of test results . 7
8 Test methods . 8
8.1 General. 8
8.2 Hardness test for set screws . 8
8.3 Proof torque test for socket set screws . 8
9 Marking and labelling . 11
9.1 General. 11
9.2 Marking on the set screws . 11
Bibliography . 13

Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: FooterCentered, Left, Space Before: 0 pt, Tab
stops: Not at 17.2 cm
Formatted: Font: 11 pt
Formatted: FooterPageRomanNumber, Left, Space After: 0
pt, Tab stops: Not at 17.2 cm
© ISO 2024 – All rights reserved
iii
ISO/FDIS 3506-3:2024 (en) Formatted: Font: 11 pt
Formatted: Font: 11 pt
Formatted: HeaderCentered, Space After: 0 pt, Line
spacing: single
Foreword
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
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). Formatted: English (United Kingdom)
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.
Formatted: Default Paragraph Font
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 Formatted: Default Paragraph Font
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
Formatted: Default Paragraph Font
www.iso.org/iso/foreword.htmlwww.iso.org/iso/foreword.html.
Formatted: Default Paragraph Font
Commented [eXtyles2]: Invalid reference: "ISO 3506 series"
This document was prepared by Technical Committee ISO/TC 2, Fasteners, in collaboration with the European
Formatted: Default Paragraph Font
Committee for Standardization (CEN) Technical Committee CEN/TC 185 Fasteners, in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement). Formatted: Default Paragraph Font
Formatted: Default Paragraph Font
This third edition cancels and replaces the second edition (ISO 3506--3:2009), which has been technically
Formatted: Adjust space between Latin and Asian text,
revised.
Adjust space between Asian text and numbers, Tab stops: Not
at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm + 3.5 cm + 4.2
cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
The main changes are as follows:
Commented [eXtyles3]: The reference is to a withdrawn
standard which has been replaced
— — annexes common to several parts of the ISO 3506 series have been withdrawn from this document

and are now included in the new Part 6 of ISO 3506-6 which is to be used with this document;
ISO 3506-1, Fasteners — Mechanical properties of corrosion-
resistant stainless steel fasteners — Part 1: Bolts, screws and studs
with specified grades and property classes
— — austenitic stainless steel of grade A8 and duplex (austenitic-ferritic) stainless steels of grades D2 to D8

for hardness class 21H have been added (see Figure 1);Figure 1); ISO 3506-2, Fasteners — Mechanical properties of corrosion-
resistant stainless steel fasteners — Part 2: Nuts with specified grades
and property classes
— — operational temperature ranges have been clarified (see Clause 1);Clause 1);

steel fasteners — Part 3: Set screws and similar fasteners not under
— — terms and definitions have been added (see Clause 3);Clause 3);
tensile stress
Formatted: Default Paragraph Font
— — wording for surface conditions and corrosion resistance have been improved (see 5.25.2 and 5.3);5.3);
Formatted: Default Paragraph Font
— — manufacturer’s, supplier’s and purchaser’s inspections have been added (see Clause 7);Clause 7);
Formatted: Default Paragraph Font
Formatted: FooterPageRomanNumber
4 © ISO 2024 – All rights reserved
iv
Formatted: Font: 11 pt
ISO/FDIS 3506-43:2024(en)
Formatted: Font: 11 pt
Formatted: HeaderCentered, Left, Space After: 0 pt, Line
spacing: single
— — hardness test and proof torque test methods have been improved (see Clause 8);Clause 8);
— — marking and labelling have been improved (see Clause 9);Clause 9);
— — structure and content of this document have been brought in line with other parts of ISO 3506 Commented [eXtyles4]: The reference is to a withdrawn
standard which has been replaced
published recently.
ISO 3506-1, Fasteners — Mechanical properties of corrosion-
resistant stainless steel fasteners — Part 1: Bolts, screws and studs
A list of all parts in the ISO 3506 series can be found on the ISO website.
with specified grades and property classes

Any feedback or questions on this document should be directed to the user’s national standards body. A
ISO 3506-2, Fasteners — Mechanical properties of corrosion-
resistant stainless steel fasteners — Part 2: Nuts with specified grades
complete listing of these bodies can be found at www.iso.org/members.htmlwww.iso.org/members.html.
and property classes
steel fastene
...

PROJET FINAL
Norme
internationale
ISO/FDIS 3506-3
ISO/TC 2
Fixations — Caractéristiques
Secrétariat: DIN
mécaniques des fixations en
Début de vote:
acier inoxydable résistant à la
2024-10-23
corrosion —
Vote clos le:
2024-12-18
Partie 3:
Vis sans tête (et fixations similaires
non soumises à des contraintes de
traction) de grades et classes de
dureté spécifiés
Fasteners — Mechanical properties of corrosion resistant
stainless steel fasteners —
Part 3: Set screws (and similar fasteners not under tensile stress)
with specified grades and hardness classes
LES DESTINATAIRES DU PRÉSENT PROJET SONT
INVITÉS À PRÉSENTER, AVEC LEURS OBSERVATIONS,
NOTIFICATION DES DROITS DE PROPRIÉTÉ DONT ILS
AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À
FOURNIR UNE DOCUMENTATION EXPLICATIVE.
OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
ÉTABLIR S’ILS SONT ACCEPTABLES À DES FINS
INDUSTRIELLES, TECHNOLOGIQUES ET COM-MERCIALES,
AINSI QUE DU POINT DE VUE DES UTILISATEURS, LES
PROJETS DE NORMES
TRAITEMENT PARALLÈLE ISO/CEN
INTERNATIONALES DOIVENT PARFOIS ÊTRE CONSIDÉRÉS
DU POINT DE VUE DE LEUR POSSI BILITÉ DE DEVENIR DES
NORMES POUVANT
SERVIR DE RÉFÉRENCE DANS LA RÉGLEMENTATION
NATIONALE.
Numéro de référence
ISO/FDIS 3506-3:2024(fr) © ISO 2024

PROJET FINAL
ISO/FDIS 3506-3:2024(fr)
Norme
internationale
ISO/FDIS 3506-3
ISO/TC 2
Fixations — Caractéristiques
Secrétariat: DIN
mécaniques des fixations en
Début de vote:
acier inoxydable résistant à la
2024-10-23
corrosion —
Vote clos le:
2024-12-18
Partie 3:
Vis sans tête (et fixations similaires
non soumises à des contraintes de
traction) de grades et classes de
dureté spécifiés
Fasteners — Mechanical properties of corrosion resistant
stainless steel fasteners —
Part 3: Set screws (and similar fasteners not under tensile stress)
with specified grades and hardness classes
LES DESTINATAIRES DU PRÉSENT PROJET SONT
INVITÉS À PRÉSENTER, AVEC LEURS OBSERVATIONS,
NOTIFICATION DES DROITS DE PROPRIÉTÉ DONT ILS
AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À
FOURNIR UNE DOCUMENTATION EXPLICATIVE.
DOCUMENT PROTÉGÉ PAR COPYRIGHT
OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
ÉTABLIR S’ILS SONT ACCEPTABLES À DES FINS
© ISO 2024 INDUSTRIELLES, TECHNOLOGIQUES ET COM-MERCIALES,
AINSI QUE DU POINT DE VUE DES UTILISATEURS, LES
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
PROJETS DE NORMES
TRAITEMENT PARALLÈLE ISO/CEN
INTERNATIONALES DOIVENT PARFOIS ÊTRE CONSIDÉRÉS
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
DU POINT DE VUE DE LEUR POSSI BILITÉ DE DEVENIR DES
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
NORMES POUVANT
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
SERVIR DE RÉFÉRENCE DANS LA RÉGLEMENTATION
NATIONALE.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: [phone]
E-mail: [e-mail]
Web: www.iso.org
Publié en Suisse Numéro de référence
ISO/FDIS 3506-3:2024(fr) © ISO 2024

ii
ISO/FDIS 3506-3:2024(fr)
Sommaire Page
Avant-propos .iv
Introduction .vi
1 Domaine d'application . 1
2 Références normatives . 1
3 Termes et définitions . 2
4 Système de désignation pour les grades d'acier inoxydable et classes de dureté . 2
4.1 Généralités .2
4.2 Désignation des grades d’acier inoxydable (premier bloc) .3
4.3 Désignation des classes de dureté (second bloc) .3
5 Matériaux . 4
5.1 Composition chimique .4
5.2 Condition de surface (finition et/ou revêtement) .5
5.3 Résistance à la corrosion .5
5.4 Propriétés magnétiques .6
6 Exigences pour les caractéristiques mécaniques et physiques . 6
6.1 Généralités .6
6.2 Exigences de dureté .6
6.3 Exigences de couple d'épreuve des vis sans tête à empreinte .6
7 Contrôle . 7
7.1 Contrôle effectué par le fabricant .7
7.2 Contrôle effectué par le fournisseur .7
7.3 Contrôle effectué par le client .7
7.4 Fourniture de résultats d'essai .7
8 Méthodes d'essai . 7
8.1 Généralités .7
8.2 Essai de dureté des vis sans tête .7
8.2.1 Généralités .7
8.2.2 Mode opératoire . .7
8.2.3 Résultat d'essai et exigence .8
8.3 Couple d'épreuve des vis sans tête à empreinte .8
8.3.1 Généralités .8
8.3.2 Mode opératoire . .8
8.3.3 Résultat d'essai et exigence .10
9 Marquage et étiquetage . 10
9.1 Généralités .10
9.2 Marquage sur les vis sans tête.10
9.3 Étiquetage des conditionnements .11
Bibliographie .12

iii
ISO/FDIS 3506-3:2024(fr)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux
de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général
confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire
partie du comité technique créé à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec l'ISO participent également aux travaux. L'ISO collabore étroitement avec
la Commission électrotechnique internationale (IEC) en ce qui concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a
été rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir
www.iso.org/directives).
L'attention est attirée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable
de ne pas avoir identifié de tels droits de propriété et averti de leur existence. Les détails concernant les
références aux droits de propriété intellectuelle ou autres droits analogues identifiés lors de l'élaboration du
document sont indiqués dans l'Introduction et/ou dans la liste des déclarations de brevets reçues par l'ISO
(voir www.iso.org/brevets).
Les appellations commerciales éventuellement mentionnées dans le présent document sont données pour
information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion de
l'ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles techniques au
commerce (OTC), voir www.iso.org/avant-propos.
Le présent document a été élaboré par le comité technique ISO/TC 2, Fixations, en collaboration avec le
Comité Européen de Normalisation (CEN) comité technique CEN/TC 185, Fixations, conformément à l'accord
de coopération technique entre l'ISO et le CEN (accord de Vienne).
Cette troisième édition annule et remplace la deuxième édition (ISO 3506-3:2009), qui a fait l’objet d’une
révision technique.
Les principales modifications sont les suivantes:
— les annexes communes à plusieurs parties de la série ISO 3506 ont été retirées du présent document et
sont désormais incluses dans la nouvelle ISO 3506-6 qui est à utiliser avec le présent document;
— l’acier inoxydable austénitique de grade A8 et les aciers inoxydables duplex (austéno-ferritiques) de
grades D2 à D8 pour la classe de dureté 21H ont été ajoutés (voir Figure 1);
— les plages de températures d’utilisation ont été clarifiées (voir l'Article 1);
— des termes et des définitions ont été ajoutés (voir l'Article 3);
— la rédaction relative aux conditions de surface et à la résistance à la corrosion a été améliorée (voir 5.2 et 5.3);
— les contrôles par le fabricant, le fournisseur et le client ont été ajoutés (voir l'Article 7);
— les méthodes d’essai de dureté et de couple d'épreuve ont été améliorées (voir l’Article 8);
— le marquage et l’étiquetage ont été améliorés (voir l'Article 9);
— la structure et le contenu du présent document ont été mis en adéquation avec les autres parties de
l’ISO 3506 publiées récemment.
Une liste de toutes les parties de la série ISO 3506 est disponible sur le site
...