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China GB MTM81 镁及镁合金废料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: MTM81 / MTM81
Category Grade Standard Region/Area Standard Content
Metals MTM81 GB/T 20926 China 镁及镁合金废料

Chemical composition(mass fraction)(wt.%) of the MTM81

Element Min Max Similar

Mechanical Properties of steel grade MTM81

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)
114 (≥) 745 (≥) 31 34 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade MTM81

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 - -     0.21 -  
457 977 - 24.3 233   -  
676 - 23 31.2   244 433

Heat Treatment of steel grade MTM81

Heat treated : 1125°C - 1446°C

Technological Curves of steel grade MTM81

Cross Reference Table (Equivalent Grade) of MTM81

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