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AWS BMg-1 vs. CR024A Copper

AWS BMg-1 belongs to the magnesium alloys classification, while CR024A copper belongs to the copper alloys. There are 28 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 CR024A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
120
Elongation at Break, % 3.8
15
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
43
Tensile Strength: Ultimate (UTS), MPa 180
230
Tensile Strength: Yield (Proof), MPa 110
140

Thermal Properties

Latent Heat of Fusion, J/g 350
210
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 600
1090
Melting Onset (Solidus), °C 440
1040
Specific Heat Capacity, J/kg-K 980
390
Thermal Conductivity, W/m-K 76
370
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
100
Electrical Conductivity: Equal Weight (Specific), % IACS 55
100

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.8
9.0
Embodied Carbon, kg CO2/kg material 22
2.6
Embodied Energy, MJ/kg 160
41
Embodied Water, L/kg 980
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
31
Resilience: Unit (Modulus of Resilience), kJ/m3 120
83
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 66
18
Strength to Weight: Axial, points 27
7.1
Strength to Weight: Bending, points 39
9.3
Thermal Diffusivity, mm2/s 43
110
Thermal Shock Resistance, points 10
8.1

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Beryllium (Be), % 0.00020 to 0.00080
0
Copper (Cu), % 0 to 0.050
99.9 to 99.985
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
0.015 to 0.040
Silicon (Si), % 0 to 0.050
0
Silver (Ag), % 0
0 to 0.015
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0