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SNC 631 H

Japan JIS SNC631H 指定的淬透性结构钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SNC631H / SNC 631 H
Category Grade Standard Region/Area Standard Content
Metals SNC 631 H JIS G4052 Japan 指定的淬透性结构钢带

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

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0300 -
P - 0.0300 -
Ni 2.4500 3.0000 -
Mn 0.3000 0.7000 -
Cu - 0.3000 -
Cr 0.5500 1.0500 -
C 0.2600 0.3500 -

Mechanical Properties of steel grade SNC 631 H

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)
185 (≥) 144 (≥) 44 32 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical Properties of steel grade SNC 631 H

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
32 - -     0.43 -  
812 288 - 21.3 132   -  
765 - 41 44.2   414 444

Heat Treatment of steel grade SNC 631 H

Heat treated : 1888°C - 1986°C

Technological Curves of steel grade SNC 631 H

Cross Reference Table (Equivalent Grade) of SNC 631 H

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