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STKN 400 W

Japan JIS STKN400W 建筑结构能用碳钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STKN400W / STKN 400 W
Category Grade Standard Region/Area Standard Content
Metals STKN 400 W JIS G3475 Japan 建筑结构能用碳钢管

Chemical composition(mass fraction)(wt.%) of the STKN 400 W

Element Min Max Similar

Mechanical Properties of steel grade STKN 400 W

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)
778 (≥) 321 (≥) 22 13 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade STKN 400 W

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
23 - -     0.43 -  
176 546 - 12.3 234   -  
796 - 44 33.2   212 323

Heat Treatment of steel grade STKN 400 W

Heat treated : 1454°C - 1746°C

Technological Curves of steel grade STKN 400 W

Cross Reference Table (Equivalent Grade) of STKN 400 W

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