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AWS BMg-1 vs. AWS E80C-W2

AWS BMg-1 belongs to the magnesium alloys classification, while AWS E80C-W2 belongs to the iron alloys. There are 27 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 AWS E80C-W2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
190
Elongation at Break, % 3.8
25
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
72
Tensile Strength: Ultimate (UTS), MPa 180
620
Tensile Strength: Yield (Proof), MPa 110
540

Thermal Properties

Latent Heat of Fusion, J/g 350
260
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 440
1410
Specific Heat Capacity, J/kg-K 980
470
Thermal Conductivity, W/m-K 76
39
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 55
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.6
Density, g/cm3 1.8
7.8
Embodied Carbon, kg CO2/kg material 22
1.5
Embodied Energy, MJ/kg 160
20
Embodied Water, L/kg 980
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
150
Resilience: Unit (Modulus of Resilience), kJ/m3 120
770
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 66
24
Strength to Weight: Axial, points 27
22
Strength to Weight: Bending, points 39
21
Thermal Diffusivity, mm2/s 43
10
Thermal Shock Resistance, points 10
18

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0
Beryllium (Be), % 0.00020 to 0.00080
0
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
0.45 to 0.7
Copper (Cu), % 0 to 0.050
0.3 to 0.75
Iron (Fe), % 0 to 0.0050
94.9 to 98
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0.5 to 1.3
Nickel (Ni), % 0 to 0.0050
0.4 to 0.8
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.050
0.35 to 0.8
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.030
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0 to 0.5