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AZ63A Magnesium vs. AWS BVAu-4

AZ63A magnesium belongs to the magnesium alloys classification, while AWS BVAu-4 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (17, 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 AZ63A magnesium and the bottom bar is AWS BVAu-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
110
Poisson's Ratio 0.29
0.4
Shear Modulus, GPa 18
41
Tensile Strength: Ultimate (UTS), MPa 190 to 270
190

Thermal Properties

Latent Heat of Fusion, J/g 350
100
Melting Completion (Liquidus), °C 610
950
Melting Onset (Solidus), °C 450
950
Specific Heat Capacity, J/kg-K 980
190
Thermal Expansion, µm/m-K 26
14

Otherwise Unclassified Properties

Density, g/cm3 1.8
17

Common Calculations

Stiffness to Weight: Axial, points 14
3.6
Stiffness to Weight: Bending, points 66
9.3
Strength to Weight: Axial, points 29 to 41
3.0
Strength to Weight: Bending, points 40 to 51
4.2
Thermal Shock Resistance, points 11 to 16
8.7

Alloy Composition

Aluminum (Al), % 5.3 to 6.7
0
Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0
0 to 0.0050
Copper (Cu), % 0 to 0.25
0
Gold (Au), % 0
81.5 to 82.5
Lead (Pb), % 0
0 to 0.0020
Magnesium (Mg), % 88.6 to 92.1
0
Manganese (Mn), % 0.15 to 0.35
0
Nickel (Ni), % 0 to 0.010
17.5 to 18.5
Phosphorus (P), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.3
0
Zinc (Zn), % 2.5 to 3.5
0 to 0.0010
Residuals, % 0 to 0.3
0