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ML30CrMoA

China GB ML30CrMoA 冷顶锻用合金结构钢丝 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: ML30CrMoA / ML30CrMoA
Category Grade Standard Region/Area Standard Content
Metals ML30CrMoA GB 5954 China 冷顶锻用合金结构钢丝

Chemical composition(mass fraction)(wt.%) of the ML30CrMoA

Element Min Max Similar
Si 0.1700 0.3700 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.4000 -
Mo 0.1500 0.2500 -
Mn 0.4000 0.7000 -
Cu - 0.2000 -
Cr 0.8000 1.1000 -
C 0.2500 0.3300 -

Mechanical Properties of steel grade ML30CrMoA

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)
178 (≥) 333 (≥) 41 22 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade ML30CrMoA

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
34 - -     0.41 -  
459 196 - 34.3 312   -  
289 - 12 34.2   214 214

Heat Treatment of steel grade ML30CrMoA

Heat treated : 1488°C - 1789°C

Technological Curves of steel grade ML30CrMoA

Cross Reference Table (Equivalent Grade) of ML30CrMoA

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