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China GB ML40MnB 冷镦钢热轧盘条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: ML40MnB / ML40MnB
Category Grade Standard Region/Area Standard Content
Metals ML40MnB GB/T 28906 China 冷镦钢热轧盘条

Chemical composition(mass fraction)(wt.%) of the ML40MnB

Element Min Max Similar
Si 1.0000 2.8000 -
S - 0.1200 -
P - 0.2500 -
Ni 13.5000 17.5000 -
Mn 0.5000 1.5000 -
Cu 5.5000 7.5000 -
Cr 1.0000 3.5000 -
C - 3.0000 -

Mechanical Properties of steel grade ML40MnB

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)
711 (≥) 819 (≥) 42 43 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical Properties of steel grade ML40MnB

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 - -     0.32 -  
584 141 - 23.3 441   -  
223 - 34 42.2   324 443

Heat Treatment of steel grade ML40MnB

Heat treated : 1922°C - 1918°C

Technological Curves of steel grade ML40MnB

Cross Reference Table (Equivalent Grade) of ML40MnB

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