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Japan JIS STK400 一般结构用碳素钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STK400 / STK400
Category Grade Standard Region/Area Standard Content
Metals STK400 JIS G3444 Japan 一般结构用碳素钢管

Chemical composition(mass fraction)(wt.%) of the STK400

Element Min Max Similar

Mechanical Properties of steel grade STK400

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)
384 (≥) 127 (≥) 21 42 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade STK400

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 - -     0.33 -  
815 556 - 13.3 331   -  
591 - 12 12.2   432 143

Heat Treatment of steel grade STK400

Heat treated : 1296°C - 1267°C

Technological Curves of steel grade STK400

Cross Reference Table (Equivalent Grade) of STK400

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