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AWS BMg-1 vs. C96700 Copper

AWS BMg-1 belongs to the magnesium alloys classification, while C96700 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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 C96700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
140
Elongation at Break, % 3.8
10
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
53
Tensile Strength: Ultimate (UTS), MPa 180
1210
Tensile Strength: Yield (Proof), MPa 110
550

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 130
310
Melting Completion (Liquidus), °C 600
1170
Melting Onset (Solidus), °C 440
1110
Specific Heat Capacity, J/kg-K 980
400
Thermal Conductivity, W/m-K 76
30
Thermal Expansion, µm/m-K 26
15

Otherwise Unclassified Properties

Base Metal Price, % relative 12
90
Density, g/cm3 1.8
8.8
Embodied Carbon, kg CO2/kg material 22
9.5
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 980
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
99
Resilience: Unit (Modulus of Resilience), kJ/m3 120
1080
Stiffness to Weight: Axial, points 14
8.9
Stiffness to Weight: Bending, points 66
20
Strength to Weight: Axial, points 27
38
Strength to Weight: Bending, points 39
29
Thermal Diffusivity, mm2/s 43
8.5
Thermal Shock Resistance, points 10
40

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0
Beryllium (Be), % 0.00020 to 0.00080
1.1 to 1.2
Copper (Cu), % 0 to 0.050
62.4 to 68.8
Iron (Fe), % 0 to 0.0050
0.4 to 1.0
Lead (Pb), % 0
0 to 0.010
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0.4 to 1.0
Nickel (Ni), % 0 to 0.0050
29 to 33
Silicon (Si), % 0 to 0.050
0 to 0.15
Titanium (Ti), % 0
0.15 to 0.35
Zinc (Zn), % 1.7 to 2.3
0
Zirconium (Zr), % 0
0.15 to 0.35
Residuals, % 0 to 0.3
0 to 0.5