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AWS BAu-1 vs. ISO-WD21150 Magnesium

AWS BAu-1 belongs to the otherwise unclassified metals classification, while ISO-WD21150 magnesium belongs to the magnesium alloys. There are 15 material properties with values for both materials. Properties with values for just one material (15, 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-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Poisson's Ratio 0.37
0.29
Shear Modulus, GPa 40
17
Tensile Strength: Ultimate (UTS), MPa 210
240 to 290

Thermal Properties

Latent Heat of Fusion, J/g 150
350
Melting Completion (Liquidus), °C 1020
600
Melting Onset (Solidus), °C 990
550
Specific Heat Capacity, J/kg-K 290
990
Thermal Expansion, µm/m-K 16
27

Otherwise Unclassified Properties

Density, g/cm3 13
1.7

Common Calculations

Stiffness to Weight: Axial, points 4.7
15
Stiffness to Weight: Bending, points 12
70
Strength to Weight: Axial, points 4.5
40 to 48
Strength to Weight: Bending, points 6.1
52 to 58
Thermal Shock Resistance, points 8.5
15 to 17

Alloy Composition

Aluminum (Al), % 0
2.4 to 3.6
Copper (Cu), % 61.9 to 63
0 to 0.050
Gold (Au), % 37 to 38
0
Iron (Fe), % 0
0 to 0.0050
Magnesium (Mg), % 0
94 to 97
Manganese (Mn), % 0
0.15 to 0.4
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0
0 to 0.1
Zinc (Zn), % 0
0.5 to 1.5
Residuals, % 0
0 to 0.3