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AWS BMg-1 vs. C15500 Copper

AWS BMg-1 belongs to the magnesium alloys classification, while C15500 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 C15500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
120
Elongation at Break, % 3.8
3.0 to 37
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
43
Shear Strength, MPa 100
190 to 320
Tensile Strength: Ultimate (UTS), MPa 180
280 to 550
Tensile Strength: Yield (Proof), MPa 110
130 to 530

Thermal Properties

Latent Heat of Fusion, J/g 350
210
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 600
1080
Melting Onset (Solidus), °C 440
1080
Specific Heat Capacity, J/kg-K 980
390
Thermal Conductivity, W/m-K 76
350
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
90
Electrical Conductivity: Equal Weight (Specific), % IACS 55
91

Otherwise Unclassified Properties

Base Metal Price, % relative 12
33
Density, g/cm3 1.8
8.9
Embodied Carbon, kg CO2/kg material 22
2.7
Embodied Energy, MJ/kg 160
42
Embodied Water, L/kg 980
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
15 to 84
Resilience: Unit (Modulus of Resilience), kJ/m3 120
72 to 1210
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 66
18
Strength to Weight: Axial, points 27
8.6 to 17
Strength to Weight: Bending, points 39
11 to 17
Thermal Diffusivity, mm2/s 43
100
Thermal Shock Resistance, points 10
9.8 to 20

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
99.75 to 99.853
Iron (Fe), % 0 to 0.0050
0
Magnesium (Mg), % 86.1 to 89.8
0.080 to 0.13
Manganese (Mn), % 0.15 to 1.5
0
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0.040 to 0.080
Silicon (Si), % 0 to 0.050
0
Silver (Ag), % 0
0.027 to 0.1
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0 to 0.2