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China GB MDA21 镁及镁合金废料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: MDA21 / MDA21
Category Grade Standard Region/Area Standard Content
Metals MDA21 GB/T 20926 China 镁及镁合金废料

Chemical composition(mass fraction)(wt.%) of the MDA21

Element Min Max Similar

Mechanical Properties of steel grade MDA21

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)
872 (≥) 122 (≥) 11 21 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade MDA21

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
12 - -     0.34 -  
984 748 - 42.3 132   -  
485 - 12 31.2   214 422

Heat Treatment of steel grade MDA21

Heat treated : 1812°C - 1457°C

Technological Curves of steel grade MDA21

Cross Reference Table (Equivalent Grade) of MDA21

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