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China GB 24Mn2K 矿山巷道支护用热轧U 型钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 24Mn2K / 24Mn2K
Category Grade Standard Region/Area Standard Content
Metals 24Mn2K GB 4697 China 矿山巷道支护用热轧U 型钢

Chemical composition(mass fraction)(wt.%) of the 24Mn2K

Element Min Max Similar

Mechanical Properties of steel grade 24Mn2K

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)
382 (≥) 736 (≥) 34 11 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical Properties of steel grade 24Mn2K

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
44 - -     0.33 -  
491 583 - 21.3 423   -  
222 - 34 33.2   312 423

Heat Treatment of steel grade 24Mn2K

Heat treated : 1372°C - 1386°C

Technological Curves of steel grade 24Mn2K

Cross Reference Table (Equivalent Grade) of 24Mn2K

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