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China GB YM203 镁合金压铸件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: YM203 / YM203
Category Grade Standard Region/Area Standard Content
Metals YM203 GB/T 25747 China 镁合金压铸件

Chemical composition(mass fraction)(wt.%) of the YM203

Element Min Max Similar
Zn - 0.2000 -
Si - 0.0800 -
Other - 0.0100 -
Ni - 0.0010 -
Mn 0.2800 0.5000 -
Mg - - -
Fe - 0.0040 -
Cu - 0.0080 -
Al 4.5000 5.3000 -
Zn - 0.2200 -
Si - 0.1000 -
Other - 0.0200 -
Ni - 0.0020 -
Mn 0.2600 0.6000 -
Mg - - -
Fe - 0.0040 -
Cu - 0.0100 -
Al 4.4000 5.4000 -

Mechanical Properties of steel grade YM203

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)
364 (≥) 839 (≥) 21 43 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade YM203

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
33 - -     0.12 -  
381 174 - 34.3 412   -  
178 - 32 14.2   414 142

Heat Treatment of steel grade YM203

Heat treated : 1683°C - 1976°C

Technological Curves of steel grade YM203

Cross Reference Table (Equivalent Grade) of YM203

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