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EQ21A Magnesium vs. AWS BAg-1

EQ21A magnesium belongs to the magnesium alloys classification, while AWS BAg-1 belongs to the otherwise unclassified metals. There are 17 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 EQ21A magnesium and the bottom bar is AWS BAg-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
75
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
28
Tensile Strength: Ultimate (UTS), MPa 250
170

Thermal Properties

Latent Heat of Fusion, J/g 340
110
Melting Completion (Liquidus), °C 640
620
Melting Onset (Solidus), °C 560
610
Specific Heat Capacity, J/kg-K 980
280
Thermal Expansion, µm/m-K 27
23

Otherwise Unclassified Properties

Density, g/cm3 1.9
9.2
Embodied Carbon, kg CO2/kg material 27
44
Embodied Energy, MJ/kg 210
690

Common Calculations

Stiffness to Weight: Axial, points 13
4.6
Stiffness to Weight: Bending, points 63
15
Strength to Weight: Axial, points 37
5.1
Strength to Weight: Bending, points 47
7.4
Thermal Shock Resistance, points 15
7.0

Alloy Composition

Cadmium (Cd), % 0
23 to 25
Copper (Cu), % 0.050 to 0.1
14 to 16
Magnesium (Mg), % 93.9 to 96.8
0
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 1.3 to 1.7
44 to 46
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0
14 to 18
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.15