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China CGMA 25MnCr5 车辆齿轮用钢 技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 25MnCr5 / 25MnCr5
Category Grade Standard Region/Area Standard Content
Metals 25MnCr5 CGMA001-1 China 车辆齿轮用钢 技术条件

Chemical composition(mass fraction)(wt.%) of the 25MnCr5

Element Min Max Similar

Mechanical Properties of steel grade 25MnCr5

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)
499 (≥) 593 (≥) 22 33 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade 25MnCr5

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
31 - -     0.11 -  
936 165 - 32.3 413   -  
768 - 32 43.2   124 221

Heat Treatment of steel grade 25MnCr5

Heat treated : 1555°C - 1413°C

Technological Curves of steel grade 25MnCr5

Cross Reference Table (Equivalent Grade) of 25MnCr5

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