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AWS BMg-1 vs. AWS ENiCu-7

AWS BMg-1 belongs to the magnesium alloys classification, while AWS ENiCu-7 belongs to the nickel alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, 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 ENiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
160
Elongation at Break, % 3.8
34
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
62
Tensile Strength: Ultimate (UTS), MPa 180
550

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Melting Completion (Liquidus), °C 600
1270
Melting Onset (Solidus), °C 440
1230
Specific Heat Capacity, J/kg-K 980
430
Thermal Conductivity, W/m-K 76
21
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 55
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
50
Density, g/cm3 1.8
8.7
Embodied Carbon, kg CO2/kg material 22
8.0
Embodied Energy, MJ/kg 160
110
Embodied Water, L/kg 980
250

Common Calculations

Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 66
21
Strength to Weight: Axial, points 27
17
Strength to Weight: Bending, points 39
17
Thermal Diffusivity, mm2/s 43
5.5
Thermal Shock Resistance, points 10
18

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0 to 0.75
Beryllium (Be), % 0.00020 to 0.00080
0
Carbon (C), % 0
0 to 0.1
Copper (Cu), % 0 to 0.050
20.6 to 38
Iron (Fe), % 0 to 0.0050
0 to 2.5
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0 to 4.0
Nickel (Ni), % 0 to 0.0050
62 to 69
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.050
0 to 1.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0 to 1.0
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0 to 0.5