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AWS BMg-1 vs. C72150 Copper-nickel

AWS BMg-1 belongs to the magnesium alloys classification, while C72150 copper-nickel 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 C72150 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
150
Elongation at Break, % 3.8
29
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
55
Shear Strength, MPa 100
320
Tensile Strength: Ultimate (UTS), MPa 180
490
Tensile Strength: Yield (Proof), MPa 110
210

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 130
600
Melting Completion (Liquidus), °C 600
1210
Melting Onset (Solidus), °C 440
1250
Specific Heat Capacity, J/kg-K 980
410
Thermal Conductivity, W/m-K 76
22
Thermal Expansion, µm/m-K 26
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
3.5
Electrical Conductivity: Equal Weight (Specific), % IACS 55
3.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
45
Density, g/cm3 1.8
8.9
Embodied Carbon, kg CO2/kg material 22
6.1
Embodied Energy, MJ/kg 160
88
Embodied Water, L/kg 980
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
120
Resilience: Unit (Modulus of Resilience), kJ/m3 120
150
Stiffness to Weight: Axial, points 14
9.1
Stiffness to Weight: Bending, points 66
20
Strength to Weight: Axial, points 27
15
Strength to Weight: Bending, points 39
15
Thermal Diffusivity, mm2/s 43
6.0
Thermal Shock Resistance, points 10
18

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Beryllium (Be), % 0.00020 to 0.00080
0
Carbon (C), % 0
0 to 0.1
Copper (Cu), % 0 to 0.050
52.5 to 57
Iron (Fe), % 0 to 0.0050
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0 to 0.050
Nickel (Ni), % 0 to 0.0050
43 to 46
Silicon (Si), % 0 to 0.050
0 to 0.5
Zinc (Zn), % 1.7 to 2.3
0 to 0.2
Residuals, % 0
0 to 0.5