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China GB QE22A 铸造镁合金锭 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: QE22A / QE22A
Category Grade Standard Region/Area Standard Content
Metals QE22A GB/T 19078 China 铸造镁合金锭

Chemical composition(mass fraction)(wt.%) of the QE22A

Element Min Max Similar
Zr 0.1000 1.0000 -
Zn - 0.2000 -
Others Total - 0.0100 -
Si - 0.0100 -
Rare Earths 2.0000 3.0000 -
Ni - 0.0050 -
Mn - 0.1500 -
Mg - - -
Fe - 0.0100 -
Cu - 0.0300 -
Ag 2.0000 3.0000 -

Mechanical Properties of steel grade QE22A

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)
634 (≥) 152 (≥) 33 34 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade QE22A

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 - -     0.32 -  
177 382 - 43.3 111   -  
347 - 41 22.2   321 133

Heat Treatment of steel grade QE22A

Heat treated : 1995°C - 1267°C

Technological Curves of steel grade QE22A

Cross Reference Table (Equivalent Grade) of QE22A

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