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AWS ERNiMo-3 vs. AZ63A Magnesium

AWS ERNiMo-3 belongs to the nickel alloys classification, while AZ63A magnesium belongs to the magnesium alloys. There are 19 material properties with values for both materials. Properties with values for just one material (12, 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 ERNiMo-3 and the bottom bar is AZ63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
46
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 83
18
Tensile Strength: Ultimate (UTS), MPa 770
190 to 270

Thermal Properties

Latent Heat of Fusion, J/g 320
350
Melting Completion (Liquidus), °C 1600
610
Melting Onset (Solidus), °C 1540
450
Specific Heat Capacity, J/kg-K 400
980
Thermal Expansion, µm/m-K 11
26

Otherwise Unclassified Properties

Base Metal Price, % relative 70
12
Density, g/cm3 9.1
1.8
Embodied Carbon, kg CO2/kg material 15
22
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 270
970

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
66
Strength to Weight: Axial, points 24
29 to 41
Strength to Weight: Bending, points 21
40 to 51
Thermal Shock Resistance, points 24
11 to 16

Alloy Composition

Aluminum (Al), % 0
5.3 to 6.7
Carbon (C), % 0 to 0.12
0
Chromium (Cr), % 4.0 to 6.0
0
Cobalt (Co), % 0 to 2.5
0
Copper (Cu), % 0 to 0.5
0 to 0.25
Iron (Fe), % 4.0 to 7.0
0
Magnesium (Mg), % 0
88.6 to 92.1
Manganese (Mn), % 0 to 1.0
0.15 to 0.35
Molybdenum (Mo), % 23 to 26
0
Nickel (Ni), % 53.7 to 69
0 to 0.010
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 0.6
0
Zinc (Zn), % 0
2.5 to 3.5
Residuals, % 0
0 to 0.3