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China GB 34SiMnK 矿山巷道支护用热轧U 型钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 34SiMnK / 34SiMnK
Category Grade Standard Region/Area Standard Content
Metals 34SiMnK GB 4697 China 矿山巷道支护用热轧U 型钢

Chemical composition(mass fraction)(wt.%) of the 34SiMnK

Element Min Max Similar

Mechanical Properties of steel grade 34SiMnK

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)
337 (≥) 116 (≥) 42 42 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical Properties of steel grade 34SiMnK

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
12 - -     0.14 -  
553 925 - 31.3 231   -  
142 - 21 21.2   424 112

Heat Treatment of steel grade 34SiMnK

Heat treated : 1271°C - 1397°C

Technological Curves of steel grade 34SiMnK

Cross Reference Table (Equivalent Grade) of 34SiMnK

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