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AWS BNi-8 vs. ZE41A Magnesium

AWS BNi-8 belongs to the nickel alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 19 material properties with values for both materials. Properties with values for just one material (16, 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 BNi-8 and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
45
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 67
18
Tensile Strength: Ultimate (UTS), MPa 570
210

Thermal Properties

Latent Heat of Fusion, J/g 390
330
Melting Completion (Liquidus), °C 1010
640
Melting Onset (Solidus), °C 980
540
Specific Heat Capacity, J/kg-K 480
970
Thermal Expansion, µm/m-K 13
27

Otherwise Unclassified Properties

Base Metal Price, % relative 46
18
Density, g/cm3 7.9
1.9
Embodied Carbon, kg CO2/kg material 8.2
24
Embodied Energy, MJ/kg 120
170
Embodied Water, L/kg 220
940

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 24
63
Strength to Weight: Axial, points 20
31
Strength to Weight: Bending, points 19
41
Thermal Shock Resistance, points 17
12

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Carbon (C), % 0 to 0.060
0
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 4.0 to 5.0
0 to 0.1
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 21.5 to 24.5
0 to 0.15
Nickel (Ni), % 61.6 to 68.5
0 to 0.010
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 6.0 to 8.0
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.050
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0 to 0.050
0.4 to 1.0
Residuals, % 0
0 to 0.3