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AWS BMg-1 vs. AWS BVAg-18

AWS BMg-1 belongs to the magnesium alloys classification, while AWS BVAg-18 belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (13, 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 BMg-1 and the bottom bar is AWS BVAg-18.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
82
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 18
30
Tensile Strength: Ultimate (UTS), MPa 180
180

Thermal Properties

Brazing Temperature, °C 600 to 630
720 to 840
Latent Heat of Fusion, J/g 350
140
Melting Completion (Liquidus), °C 600
720
Melting Onset (Solidus), °C 440
600
Specific Heat Capacity, J/kg-K 980
280
Thermal Expansion, µm/m-K 26
19

Otherwise Unclassified Properties

Density, g/cm3 1.8
9.7
Embodied Carbon, kg CO2/kg material 22
59
Embodied Energy, MJ/kg 160
930

Common Calculations

Stiffness to Weight: Axial, points 14
4.7
Stiffness to Weight: Bending, points 66
15
Strength to Weight: Axial, points 27
5.1
Strength to Weight: Bending, points 39
7.3
Thermal Shock Resistance, points 10
8.1

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0
Beryllium (Be), % 0.00020 to 0.00080
0
Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0
0 to 0.0050
Copper (Cu), % 0 to 0.050
28.5 to 31.5
Iron (Fe), % 0 to 0.0050
0
Lead (Pb), % 0
0 to 0.0020
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.050
0
Silver (Ag), % 0
59 to 61
Tin (Sn), % 0
9.5 to 10.5
Zinc (Zn), % 1.7 to 2.3
0 to 0.0010
Residuals, % 0 to 0.3
0