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America UNS M18221 Magnesium alloy casting (QE22A) and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: M18221 / M18221
Category Grade Standard Region/Area Standard Content
Metals M18221 -- America Magnesium alloy casting (QE22A)

Chemical composition(mass fraction)(wt.%) of the M18221

Element Min Max Similar
Zr 0.3000 - -
Zn 3.7000 4.8000 -
Total Others - 0.3000 -
Si - 0.0100 -
Rare Earths 1.0000 1.7500 -
Ni - 0.0100 -
Mn - 0.1500 -
Mg - - -
Cu - 0.0300 -

Mechanical Properties of steel grade M18221

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)
112 (≥) 452 (≥) 23 32 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical Properties of steel grade M18221

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
14 - -     0.34 -  
522 469 - 43.3 431   -  
512 - 31 13.2   314 433

Heat Treatment of steel grade M18221

Heat treated : 1193°C - 1238°C

Technological Curves of steel grade M18221

Cross Reference Table (Equivalent Grade) of M18221

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