FprEN ISO 3506-3
(Main)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/FDIS 3506-3:2024)
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/FDIS 3506-3:2024)
This document specifies the mechanical and physical properties of set screws and similar fasteners not under tensile stress, made of corrosion resistant austenitic and duplex stainless steels, with specified grades and hardness classes.
ISO 3506-6 provides general rules and additional technical information on suitable stainless steels and their properties (detailed properties of stainless steel grades, corrosion behaviour with regards to pitting, crevice and intergranular corrosion, magnetic properties, etc.).
WARNING — Set screws conforming to the requirements of this document are tested at the ambient temperature range of 10 °C to 35 °C and are used in application ranging from –20 °C to +150 °C. It is possible that they do not retain the specified mechanical and physical properties at lower and/or elevated temperatures. Therefore, it is the responsibility of the user to determine the appropriate choices based on service environment conditions of the assembly (see also Clauses 5 and 6).
This document applies to set screws and similar fasteners not under tensile stress
— with ISO metric thread in accordance with ISO 68-1,
— with diameter/pitch combinations in accordance with ISO 261 and ISO 262,
— with nominal thread diameter 1,6 mm to 24 mm,
— with thread tolerances in accordance with ISO 965-1 and ISO 965-2,
— with specified hardness classes, and
— of any shape.
NOTE The term set screw is used in the following for all screws and similar fasteners not under tensile stress within the scope of this document.
This document does not apply to screws under tensile stress (see ISO 3506-1). It does not specify requirements for functional properties such as shear strength or weldability.
Mechanische Verbindungselemente - Eigenschaften von Verbindungselementen aus nichtrostenden Stählen - Teil 3: Gewindestifte und ähnliche nicht auf Zug beanspruchte Verbindungselemente (ISO/FDIS 3506-3:2024)
Dieses Dokument legt die mechanischen und physikalischen Eigenschaften von nicht auf Zug beanspruchten Gewindestiften und ähnlichen Verbindungselementen aus nichtrostenden, korrosionsbeständigen austenitischen Stählen und Duplex-Stählen mit festgelegten Stahlsorten und Härteklassen fest.
WARNUNG — Gewindestifte, die den Anforderungen dieses Dokuments entsprechen, werden in einem Umgebungstemperaturbereich von 10 °C bis 35 °C geprüft und in einem Anwendungsbereich von −20 °C bis +150 °C eingesetzt. Eventuell ändern sich die festgelegten mechanischen und physikalischen Eigenschaften bei höheren und/oder niedrigeren Temperaturen. Es liegt daher in der Verantwortung des Anwenders, auf der Grundlage der Betriebsumgebungsbedingungen der Baugruppe die geeignete Auswahl zu treffen (siehe auch Abschnitt 5 und Abschnitt 6).
Dieses Dokument gilt für Gewindestifte und ähnliche Verbindungselemente, die nicht auf Zug beansprucht werden
mit metrischem ISO-Gewinde nach ISO 68 1,
mit Durchmesser-Steigungs-Kombinationen nach ISO 261 und ISO 262,
mit Gewindenenndurchmessern 1,6 mm bis 24 mm,
mit Gewindetoleranzen nach ISO 965 1 und ISO 965 2,
mit festgelegten Härteklassen, und
mit beliebiger Form.
ANMERKUNG Der Begriff Gewindestift wird im Folgenden für alle nicht auf Zug beanspruchten Schrauben und ähnlichen Verbindungselemente verwendet, die in den Anwendungsbereich dieses Dokuments fallen.
Dieses Dokument gilt nicht für Schrauben, die auf Zug beansprucht werden (siehe ISO 3506 1). Es legt keine Anforderungen für funktionelle Eigenschaften wie Scherfestigkeit oder Schweißbarkeit fest.
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 (ISO/FDIS 3506-3:2024)
Le présent document spécifie les caractéristiques mécaniques et physiques des vis sans tête et fixations similaires non soumises à des contraintes de traction, fabriquées en aciers inoxydables austénitiques et duplex résistant à la corrosion, de grades et classes de dureté spécifiés.
L’ISO 3506-6 fournit des règles générales et des informations techniques supplémentaires sur les aciers inoxydables appropriés et leurs propriétés (propriétés détaillées des grades d’acier inoxydable, comportement à la corrosion par piqûres, corrosion caverneuse et intergranulaire, magnétisme, etc.).
AVERTISSEMENT — Les vis sans tête conformes aux exigences du présent document sont soumises à essai dans la plage de température ambiante de 10 °C à 35 °C et sont utilisées dans des applications de −20 °C à +150 °C. Elles peuvent ne pas conserver les caractéristiques mécaniques et physiques spécifiées à des températures basses et/ou élevées. Par conséquent, il est de la responsabilité de l’utilisateur de déterminer les choix appropriés en fonction des conditions de l’environnement d’utilisation de l’assemblage (voir également les Articles 5 et 6).
Le présent document s’applique aux vis sans tête et aux fixations similaires non soumises à des contraintes de traction
— à filetage métrique ISO conforme à l’ISO 68-1,
— de combinaisons diamètre/pas conformes à l’ISO 261 et à l’ISO 262,
— de diamètre nominal de filetage 1,6 mm à 24 mm,
— de tolérances de filetage conformes à l’ISO 965-1 et à l’ISO 965-2,
— de classes de dureté spécifiées, et
— de forme quelconque.
NOTE Le terme vis sans tête est utilisé dans ce qui suit pour toutes les vis et fixations similaires non soumises à des contraintes de traction, incluses dans le domaine d’application du présent document.
Le présent document ne s’applique pas aux vis soumises à des contraintes de traction (voir l’ISO 3506-1). Il ne spécifie pas d’exigences pour des caractéristiques fonctionnelles telles que la résistance au cisaillement ou la soudabilité.
Vezni elementi - Mehanske lastnosti veznih elementov iz nerjavnega jekla - 3. del: Navojni zatiči (in podobni vijaki, natezno neobremenjeni) z določenimi ocenami in razredi trdote (ISO/FDIS 3506-3:2024)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN ISO 3506-3:2024
01-februar-2024
Vezni elementi - Mehanske lastnosti veznih elementov iz nerjavnega jekla - 3. del:
Navojni zatiči (in podobni vijaki, natezno neobremenjeni) z določenimi ocenami in
razredi trdote (ISO/DIS 3506-3:2023)
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/DIS 3506-3:2023)
Mechanische Verbindungselemente - Eigenschaften von Verbindungselementen aus
nichtrostenden Stählen - Teil 3: Gewindestifte und ähnliche nicht auf Zug beanspruchte
Verbindungselemente (ISO/DIS 3506-3:2023)
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 (ISO/DIS 3506-3:2023)
Ta slovenski standard je istoveten z: prEN ISO 3506-3
ICS:
21.060.10 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
77.140.20 Visokokakovostna jekla Stainless steels
oSIST prEN ISO 3506-3:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN ISO 3506-3:2024
oSIST prEN ISO 3506-3:2024
DRAFT INTERNATIONAL STANDARD
ISO/DIS 3506-3
ISO/TC 2 Secretariat: DIN
Voting begins on: Voting terminates on:
2023-11-28 2024-02-20
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
ICS: 21.060.10
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
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ISO/DIS 3506-3:2023(E)
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NOTIFICATION OF ANY RELEVANT PATENT
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PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023
oSIST prEN ISO 3506-3:2024
ISO/DIS 3506-3:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 3506-3
ISO/TC 2 Secretariat: DIN
Voting begins on: Voting terminates on:
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
ICS: 21.060.10
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
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NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 3506-3:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
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TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023
oSIST prEN ISO 3506-3:2024
ISO/DIS 3506-3:2023(E)
Contents Page
Introduction .iv
Foreword .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 . 5
6.1 General . 5
6.2 Hardness requirements . 5
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 . 6
7.4 Delivery of test results . 6
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 . 7
9 Marking and labelling . 9
9.1 General . 9
9.2 Marking on the set screws . 10
9.3 Marking of the packages (labelling) . 10
Bibliography .11
iii
oSIST prEN ISO 3506-3:2024
ISO/DIS 3506-3:2023(E)
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 the manufacturing
processes. Austenitic and duplex (austenitic-ferritic) stainless steel fasteners are generally
manufactured by cold working; they consequently do not have homogeneous local material properties
when compared to quenched and tempered fasteners.
Austenitic-ferritic stainless steels referred to as duplex stainless steel grades were originally invented
in the 1930s and have been increasingly used since the 1980s. This document was revised to reflect
their standardization for fasteners.
All duplex stainless steel grades show improved resistance to stress corrosion cracking compared to
the commonly used A2 to A5 austenitic grades. Most duplex grades also show higher levels of pitting
corrosion resistance, where D2 matches at least A2 and where D4 matches at least A4.
Complementary detailed explanations about stainless steel grades and properties are specified in
ISO 3506-6.
iv
oSIST prEN ISO 3506-3:2024
ISO/DIS 3506-3:2023(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 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.
ISO 3506-3 was prepared by Technical Committee ISO/TC 2, Fasteners.
This third edition cancels and replaces the second edition (ISO 3506-3:2009), which has been technically
revised.
The main cha
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