ASTM A193 B8MLCuN

Alias

ASTM A193
UNS S31254
254SMO

Chemistry

Element Min Max
C (Carbon) 0.02%
Cr (Chromium) 19.5 20.5%
Cu (Copper) 0.5 1%
Mn (Mnaganese) 1%
Mo (Molybdenum) 6 6.5%
N (Nitrogen) 0.18 0.22%
Ni (nickel) 0.18 0.22%
P(Phosphorus) 0.03%
S (Sulphur) 0.01%
Si (Silicon) 0.08%
Mechanical Property Min Max
Ultimate Tensile Strength (UTS) 760 MPa
0.2% Proof Stress 665 MPa
Elongation 15%
Gauge Length A4D
Hardness (Brinell) 321 HB
Hardness (Rockwell C) 35 HRC

Properties

High temperature Stainless Steel

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