DEF STAN 02-862 PT3-Alloy 400/k-500

Alias

SM1-M
SM2-M
SM1-U
SM1-U

Chemistry

Base Elements C(Carbon), Fe(Iron)

Element Min Max
P (Phosphorus) o.04%
S (Sulphur) 0.04%

Mechanical Properties

Bolts, Screws, Studs and Stud-bolts

Mechanical Property Min Max
Yield Strength 680 MPa
Tensile Strength 850 MPa 1000 MPa
Elongation  13 5.63√S0%

Nuts

Mechanical Property Min Max
Yield Strength 525 MPa
Tensile Strength 700 MPa 850 MPa
Elongation 17 5.63√S0%

Uses

Bolting
First level fasteners;
This area of the Defence Standard specifies the requirements for the manufacture, testing and quality assurance documentation for ferrous (carbon/low alloy steel and stainless steels) and non-ferrous metric and unified fasteners for First Level Quality assured applications.

Disclaimer:
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