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Japan JIS SUS631 不锈钢棒 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SUS631 / SUS 631
Category Grade Standard Region/Area Standard Content
Metals SUS 631 JIS G4303 Japan 不锈钢棒

Chemical composition(mass fraction)(wt.%) of the SUS 631

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.0400 -
Ni 6.5000 7.7500 -
Mn - 1.0000 -
Cr 16.0000 18.0000 -
C - 0.0900 -
Al 0.7500 1.5000 -
Si - 1.0000 -
S - 0.0300 -
P - 0.0400 -
Ni 6.5000 7.7500 -
Mn - 1.0000 -
Cr 16.0000 18.0000 -
C - 0.0900 -
Al 0.7500 1.5000 -

Mechanical Properties of steel grade SUS 631

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)
843 (≥) 176 (≥) 12 22 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade SUS 631

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
44 - -     0.33 -  
414 775 - 13.3 113   -  
578 - 14 24.2   344 112

Heat Treatment of steel grade SUS 631

Heat treated : 1168°C - 1248°C

Technological Curves of steel grade SUS 631

Cross Reference Table (Equivalent Grade) of SUS 631

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