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AWS BVAg-29 vs. QE22A Magnesium

AWS BVAg-29 belongs to the otherwise unclassified metals classification, while QE22A magnesium belongs to the magnesium alloys. There are 15 material properties with values for both materials. Properties with values for just one material (18, 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 BVAg-29 and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
44
Poisson's Ratio 0.37
0.29
Shear Modulus, GPa 27
17
Tensile Strength: Ultimate (UTS), MPa 180
250

Thermal Properties

Latent Heat of Fusion, J/g 120
340
Melting Completion (Liquidus), °C 710
640
Melting Onset (Solidus), °C 620
570
Specific Heat Capacity, J/kg-K 270
970
Thermal Expansion, µm/m-K 20
27

Otherwise Unclassified Properties

Density, g/cm3 9.7
2.0

Common Calculations

Stiffness to Weight: Axial, points 4.2
13
Stiffness to Weight: Bending, points 14
60
Strength to Weight: Axial, points 5.2
36
Strength to Weight: Bending, points 7.3
46
Thermal Shock Resistance, points 8.8
15

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 22.5 to 25.5
0 to 0.1
Indium (In), % 14 to 15
0
Lead (Pb), % 0 to 0.0020
0
Magnesium (Mg), % 0
93.1 to 95.8
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.0020
0
Silver (Ag), % 60.5 to 62.5
2.0 to 3.0
Unspecified Rare Earths, % 0
1.8 to 2.5
Zinc (Zn), % 0 to 0.0010
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3