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China GB Mg7RE2 球墨铸铁用球化剂 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Mg7RE2 / Mg7RE2
Category Grade Standard Region/Area Standard Content
Metals Mg7RE2 GB/T 28702 China 球墨铸铁用球化剂

Chemical composition(mass fraction)(wt.%) of the Mg7RE2

Element Min Max Similar
Ti - 0.5000 -
Si - 48.0000 -
Re 1.5000 2.5000 -
Mg 6.5000 7.5000 -
Al - 1.0000 -

Mechanical Properties of steel grade Mg7RE2

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)
961 (≥) 718 (≥) 24 23 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade Mg7RE2

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
41 - -     0.11 -  
783 758 - 43.3 334   -  
465 - 21 23.2   433 432

Heat Treatment of steel grade Mg7RE2

Heat treated : 1714°C - 1824°C

Technological Curves of steel grade Mg7RE2

Cross Reference Table (Equivalent Grade) of Mg7RE2

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