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China GB 12Mn 低合金高强度结构钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 12Mn / 12Mn
Category Grade Standard Region/Area Standard Content
Metals 12Mn GB 1591 China 低合金高强度结构钢

Chemical composition(mass fraction)(wt.%) of the 12Mn

Element Min Max Similar

Mechanical Properties of steel grade 12Mn

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)
433 (≥) 826 (≥) 31 41 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade 12Mn

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
11 - -     0.13 -  
858 722 - 21.3 224   -  
543 - 13 12.2   222 221

Heat Treatment of steel grade 12Mn

Heat treated : 1577°C - 1416°C

Technological Curves of steel grade 12Mn

Cross Reference Table (Equivalent Grade) of 12Mn

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