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China GB ML20 冷镦钢丝 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: ML20 / ML20
Category Grade Standard Region/Area Standard Content
Metals ML20 GB/T 5953 China 冷镦钢丝

Chemical composition(mass fraction)(wt.%) of the ML20

Element Min Max Similar

Mechanical Properties of steel grade ML20

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)
889 (≥) 542 (≥) 43 31 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade ML20

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
42 - -     0.43 -  
483 693 - 12.3 211   -  
129 - 42 31.2   211 233

Heat Treatment of steel grade ML20

Heat treated : 1298°C - 1855°C

Technological Curves of steel grade ML20

Cross Reference Table (Equivalent Grade) of ML20

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