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ASME SA193 B8M Class 2


ASTM A193 B8M Class 2
ASTM A320 B8M Class 2
ASME SA193 B8M Class 2
ASME SA320 B8M Class 2
UNS S31600 Strain Hardened


316 Strained Hardened
Base Element Fe(Iron)

Element Min Max
C (Carbon) 0.08%
Cr (Chromium) 16% 18%
Mn (Manganese) 2%
Mo (Molybdenum) 2% 3%
Ni (Nickel) 10% 14%
P (Phosphorus) 0.045%
S (Sulphur) 0.03%
Si (Silicon) 1%
Mechanical Property Min Max
Ultimate Tensile Strength (UTS) 760 Mpa
0.2% Proof Stress 665 Mpa
Elongation (4D) 15%
Reduction of Area 45%
Hardness (Brinell) 321 HB
Hardness (Rockwell C) 35 HRC

Heat Treated with a carbide solution and strain hardened.


Bolting for pressure vessels, valves, flanges and fittings for high temperature or high pressure services, as well as other special purpose applications.

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