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QE22A Magnesium vs. R60804 Alloy

QE22A magnesium belongs to the magnesium alloys classification, while R60804 alloy belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is QE22A magnesium and the bottom bar is R60804 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
98
Elongation at Break, % 2.4
22
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
36
Tensile Strength: Ultimate (UTS), MPa 250
430
Tensile Strength: Yield (Proof), MPa 190
270

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Specific Heat Capacity, J/kg-K 970
270
Thermal Conductivity, W/m-K 110
22
Thermal Expansion, µm/m-K 27
6.0

Otherwise Unclassified Properties

Density, g/cm3 2.0
6.5

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
85
Resilience: Unit (Modulus of Resilience), kJ/m3 400
380
Stiffness to Weight: Axial, points 13
8.3
Stiffness to Weight: Bending, points 60
23
Strength to Weight: Axial, points 36
18
Strength to Weight: Bending, points 46
19
Thermal Diffusivity, mm2/s 59
12
Thermal Shock Resistance, points 15
53

Alloy Composition

Chromium (Cr), % 0
0.070 to 0.13
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
0.18 to 0.24
Magnesium (Mg), % 93.1 to 95.8
0
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 2.0 to 3.0
0
Tin (Sn), % 0
1.2 to 1.7
Unspecified Rare Earths, % 1.8 to 2.5
0
Zirconium (Zr), % 0.4 to 1.0
97.8 to 98.6
Residuals, % 0
0 to 0.12