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China GB MB7 加工镁及镁合金牌号和化学成分 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: MB7 / MB7
Category Grade Standard Region/Area Standard Content
Metals MB7 GB 5153 China 加工镁及镁合金牌号和化学成分

Chemical composition(mass fraction)(wt.%) of the MB7

Element Min Max Similar

Mechanical Properties of steel grade MB7

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)
561 (≥) 697 (≥) 41 21 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade MB7

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
23 - -     0.13 -  
758 426 - 31.3 131   -  
959 - 33 32.2   322 442

Heat Treatment of steel grade MB7

Heat treated : 1893°C - 1328°C

Technological Curves of steel grade MB7

Cross Reference Table (Equivalent Grade) of MB7

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