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AWS BNi-5a vs. QE22A Magnesium

AWS BNi-5a belongs to the nickel alloys classification, while QE22A magnesium belongs to the magnesium alloys. There are 17 material properties with values for both materials. Properties with values for just one material (18, 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-5a and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
44
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
17
Tensile Strength: Ultimate (UTS), MPa 480
250

Thermal Properties

Latent Heat of Fusion, J/g 420
340
Melting Completion (Liquidus), °C 1150
640
Melting Onset (Solidus), °C 1070
570
Specific Heat Capacity, J/kg-K 500
970
Thermal Expansion, µm/m-K 12
27

Otherwise Unclassified Properties

Density, g/cm3 7.9
2.0
Embodied Carbon, kg CO2/kg material 9.0
27
Embodied Energy, MJ/kg 130
220

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
60
Strength to Weight: Axial, points 17
36
Strength to Weight: Bending, points 17
46
Thermal Shock Resistance, points 15
15

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 1.0 to 1.5
0
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 18.5 to 19.5
0
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 0 to 0.5
0
Magnesium (Mg), % 0
93.1 to 95.8
Nickel (Ni), % 70.1 to 73.5
0 to 0.010
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 7.0 to 7.5
0
Silver (Ag), % 0
2.0 to 3.0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.050
0
Unspecified Rare Earths, % 0
1.8 to 2.5
Zirconium (Zr), % 0 to 0.050
0.4 to 1.0
Residuals, % 0
0 to 0.3