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AWS BAg-21 vs. ZE41A Magnesium

AWS BAg-21 belongs to the otherwise unclassified metals classification, while ZE41A magnesium belongs to the magnesium alloys. There are 16 material properties with values for both materials. Properties with values for just one material (19, 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 BAg-21 and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 85
45
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 31
18
Tensile Strength: Ultimate (UTS), MPa 150
210

Thermal Properties

Latent Heat of Fusion, J/g 140
330
Melting Completion (Liquidus), °C 800
640
Melting Onset (Solidus), °C 690
540
Specific Heat Capacity, J/kg-K 280
970
Thermal Expansion, µm/m-K 19
27

Otherwise Unclassified Properties

Density, g/cm3 9.8
1.9
Embodied Energy, MJ/kg 970
170

Common Calculations

Stiffness to Weight: Axial, points 4.8
13
Stiffness to Weight: Bending, points 15
63
Strength to Weight: Axial, points 4.2
31
Strength to Weight: Bending, points 6.4
41
Thermal Shock Resistance, points 6.6
12

Alloy Composition

Copper (Cu), % 27.5 to 29.5
0 to 0.1
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 2.0 to 3.0
0 to 0.010
Silver (Ag), % 62 to 64
0
Tin (Sn), % 5.0 to 7.0
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3