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AWS BAu-1 vs. ISO-WD32260 Magnesium

AWS BAu-1 belongs to the otherwise unclassified metals classification, while ISO-WD32260 magnesium belongs to the magnesium alloys. There are 15 material properties with values for both materials. Properties with values for just one material (16, 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 AWS BAu-1 and the bottom bar is ISO-WD32260 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
46
Poisson's Ratio 0.37
0.29
Shear Modulus, GPa 40
18
Tensile Strength: Ultimate (UTS), MPa 210
330 to 340

Thermal Properties

Latent Heat of Fusion, J/g 150
330
Melting Completion (Liquidus), °C 1020
600
Melting Onset (Solidus), °C 990
520
Specific Heat Capacity, J/kg-K 290
970
Thermal Expansion, µm/m-K 16
27

Otherwise Unclassified Properties

Density, g/cm3 13
1.9

Common Calculations

Stiffness to Weight: Axial, points 4.7
13
Stiffness to Weight: Bending, points 12
63
Strength to Weight: Axial, points 4.5
48 to 51
Strength to Weight: Bending, points 6.1
56 to 58
Thermal Shock Resistance, points 8.5
19 to 20

Alloy Composition

Copper (Cu), % 61.9 to 63
0
Gold (Au), % 37 to 38
0
Magnesium (Mg), % 0
92.7 to 94.8
Zinc (Zn), % 0
4.8 to 6.2
Zirconium (Zr), % 0
0.45 to 0.8
Residuals, % 0
0 to 0.3