BS EN ISO 3506-3:2009 Mechanical properties of corrosion-resistant stainless steel fasteners. Set screws and similar fasteners not under tensile stress
BS EN ISO 3506-3 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.
BS EN ISO 3506-3 applies to set screws and similar fasteners:
- With nominal thread diameter 1,6 mm u d u 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.
Contents of BS EN ISO 3506-3:
Foreword
Introduction
1 Scope
2 Normative references
3 Designation, marking and finish
3.1 Designation
3.2 Marking
3.3 Finish
4 Chemical composition
5 Mechanical properties
5.1 General
5.2 Proof torque of hexagon socket set screws
5.3 Hardness
6 Test methods
6.1 Proof torque test for hexagon socket set screws
6.2 Hardness test HB, HRB or HV for set screws
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
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