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China GB MTW72 镁及镁合金废料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: MTW72 / MTW72
Category Grade Standard Region/Area Standard Content
Metals MTW72 GB/T 20926 China 镁及镁合金废料

Chemical composition(mass fraction)(wt.%) of the MTW72

Element Min Max Similar

Mechanical Properties of steel grade MTW72

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)
525 (≥) 668 (≥) 43 34 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical Properties of steel grade MTW72

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 - -     0.22 -  
299 466 - 13.3 431   -  
586 - 14 14.2   144 121

Heat Treatment of steel grade MTW72

Heat treated : 1543°C - 1925°C

Technological Curves of steel grade MTW72

Cross Reference Table (Equivalent Grade) of MTW72

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