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AWS BMg-1 vs. C55280 Copper

AWS BMg-1 belongs to the magnesium alloys classification, while C55280 copper belongs to the copper alloys. There are 19 material properties with values for both materials. Properties with values for just one material (12, 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 C55280 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
110
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
40
Tensile Strength: Ultimate (UTS), MPa 180
180

Thermal Properties

Brazing Temperature, °C 600 to 630
730 to 820
Latent Heat of Fusion, J/g 350
190
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 600
790
Melting Onset (Solidus), °C 440
640
Specific Heat Capacity, J/kg-K 980
410
Thermal Expansion, µm/m-K 26
16

Otherwise Unclassified Properties

Density, g/cm3 1.8
8.5
Embodied Carbon, kg CO2/kg material 22
4.2
Embodied Energy, MJ/kg 160
67

Common Calculations

Stiffness to Weight: Axial, points 14
6.9
Stiffness to Weight: Bending, points 66
19
Strength to Weight: Axial, points 27
5.9
Strength to Weight: Bending, points 39
8.3
Thermal Shock Resistance, points 10
7.4

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0
Beryllium (Be), % 0.00020 to 0.00080
0
Copper (Cu), % 0 to 0.050
90.5 to 91.4
Iron (Fe), % 0 to 0.0050
0
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
6.8 to 7.2
Silicon (Si), % 0 to 0.050
0
Silver (Ag), % 0
1.8 to 2.2
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0 to 0.15