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Japan JIS STKR400 通用结构碳钢方管,矩形管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STKR400 / STKR 400
Category Grade Standard Region/Area Standard Content
Metals STKR 400 JIS G3466 Japan 通用结构碳钢方管,矩形管

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

Element Min Max Similar

Mechanical Properties of steel grade STKR 400

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)
227 (≥) 984 (≥) 14 13 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade STKR 400

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
13 - -     0.12 -  
914 338 - 42.3 131   -  
382 - 42 24.2   311 412

Heat Treatment of steel grade STKR 400

Heat treated : 1389°C - 1713°C

Technological Curves of steel grade STKR 400

Cross Reference Table (Equivalent Grade) of STKR 400

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