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AWS BMg-1 vs. C82200 Copper

AWS BMg-1 belongs to the magnesium alloys classification, while C82200 copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 C82200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
120
Elongation at Break, % 3.8
8.0 to 20
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
44
Tensile Strength: Ultimate (UTS), MPa 180
390 to 660
Tensile Strength: Yield (Proof), MPa 110
210 to 520

Thermal Properties

Latent Heat of Fusion, J/g 350
220
Maximum Temperature: Mechanical, °C 130
230
Melting Completion (Liquidus), °C 600
1080
Melting Onset (Solidus), °C 440
1040
Specific Heat Capacity, J/kg-K 980
390
Thermal Conductivity, W/m-K 76
180
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
45
Electrical Conductivity: Equal Weight (Specific), % IACS 55
46

Otherwise Unclassified Properties

Base Metal Price, % relative 12
55
Density, g/cm3 1.8
8.9
Embodied Carbon, kg CO2/kg material 22
4.8
Embodied Energy, MJ/kg 160
74
Embodied Water, L/kg 980
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
49 to 66
Resilience: Unit (Modulus of Resilience), kJ/m3 120
180 to 1130
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 66
18
Strength to Weight: Axial, points 27
12 to 20
Strength to Weight: Bending, points 39
13 to 19
Thermal Diffusivity, mm2/s 43
53
Thermal Shock Resistance, points 10
14 to 23

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0
Beryllium (Be), % 0.00020 to 0.00080
0.35 to 0.8
Cobalt (Co), % 0
0 to 0.3
Copper (Cu), % 0 to 0.050
97.4 to 98.7
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
1.0 to 2.0
Silicon (Si), % 0 to 0.050
0
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0 to 0.5