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BS EN ISO 3506-3:2009

Current
Current

The latest, up-to-date edition.

Mechanical properties of corrosion-resistant stainless steel fasteners Set screws and similar fasteners not under tensile stress
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-12-2009

Foreword
Introduction
1 Scope
2 Normative references
3 Designation, marking and finish
4 Chemical composition
5 Mechanical properties
6 Test methods
Annex A (normative) - Description of the groups and grades
                      of stainless steels
Annex B (informative) - Austenitic stainless steel
                        composition specifications
Annex C (informative) - Austenitic stainless steels for
                        cold heading and extruding
Annex D (informative) - Time-temperature diagram of
                        intergranular corrosion in
                        austenitic stainless steels, grade
                        A2 (18/8 steels)
Annex E (informative) - Magnetic properties for austenitic
                        stainless steels
Bibliography

Describes 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 degree C to 35 degree C.

This part of ISO3506 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.

This part of ISO3506 applies to set screws and similar fasteners:

  • with nominal thread diameter 1,6mm≤d≤24mm;

  • of triangular ISO metric threads with diameters and pitches in accordance with ISO68-1, ISO261 and ISO262;

  • of any shape.

It does not apply to screws with special properties, such as weldability.

NOTE The designation system of this part of ISO3506 can be used for sizes outside the limits given in this clause (e.g. d>24mm), provided that all applicable mechanical and physical requirements of the hardness classes are met.

This part of ISO3506 does not define corrosion or oxidation resistance in particular environments.

The aim of this part of ISO3506 is the classification of corrosion-resistant stainless steel fasteners into hardness classes.

Corrosion and oxidation performances and mechanical properties for use at elevated or sub-zero temperatures can be agreed on between the user and the manufacturer in each particular case. AnnexD shows how the risk of intergranular corrosion at elevated temperatures depends on the carbon content.

All austenitic stainless steel fasteners are normally non-magnetic in the annealed condition; after cold working, some magnetic properties can be evident (see AnnexE).

Committee
FME/9
DevelopmentNote
Supersedes 95/710059 DC. (10/2005) Supersedes 08/30165732 DC. (12/2009)
DocumentType
Standard
Pages
26
PublisherName
British Standards Institution
Status
Current
Supersedes

DEFSTAN 02-862(PT3)/3(2011) : 2011 NAVAL FASTENERS - PART 3: PROCUREMENT OF FIRST LEVEL FASTENERS
DEFSTAN 02-862(PT2)/3(2011) : 2011 NAVAL FASTENERS - PART 2: PROCUREMENT OF NON-FIRST LEVEL FASTENERS

ISO 6507-1:2005 Metallic materials Vickers hardness test Part 1: Test method
ISO 6506-1:2014 Metallic materials Brinell hardness test Part 1: Test method
ISO 683-13:1974 Heat-treated steels, alloy steels and free-cutting steels Part 13: Wrought stainless steels
ISO 6508-1:2016 Metallic materials — Rockwell hardness test — Part 1: Test method
ISO 16426:2002 Fasteners — Quality assurance system
ISO 898-5:2012 Mechanical properties of fasteners made of carbon steel and alloy steel Part 5: Set screws and similar threaded fasteners with specified hardness classes Coarse thread and fine pitch thread
ISO 262:1998 ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts
ISO 68-1:1998 ISO general purpose screw threads — Basic profile — Part 1: Metric screw threads
ISO 3651-2:1998 Determination of resistance to intergranular corrosion of stainless steels — Part 2: Ferritic,austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in media containing sulfuric acid
ISO 16048:2003 Passivation of corrosion-resistant stainless-steel fasteners
ISO 3651-1:1998 Determination of resistance to intergranular corrosion of stainless steels — Part 1: Austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in nitric acid medium by measurement of loss in mass (Huey test)
ISO 261:1998 ISO general purpose metric screw threads General plan
ISO 965-3:1998 ISO general purpose metric screw threads Tolerances Part 3: Deviations for constructional screw threads
ISO 4954:1993 Steels for cold heading and cold extruding

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