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America UNS S31200 铁素体-奥氏体铬镍钼氮合金不锈钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S31200 / S31200
Category Grade Standard Region/Area Standard Content
Metals S31200 -- America 铁素体-奥氏体铬镍钼氮合金不锈钢

Chemical composition(mass fraction)(wt.%) of the S31200

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.0450 -
Ni 5.5000 6.5000 -
N 0.1400 0.2000 -
Mo 1.2000 2.0000 -
Mn - 2.0000 -
Cr 24.0000 26.0000 -
C - 0.0300 -

Mechanical Properties of steel grade S31200

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
416 (≥) 277 (≥) 43 34 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade S31200

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
11 - -     0.44 -  
525 285 - 31.3 434   -  
778 - 22 43.2   411 221

Heat Treatment of steel grade S31200

Heat treated : 1728°C - 1689°C

Technological Curves of steel grade S31200

Cross Reference Table (Equivalent Grade) of S31200

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