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AWS ERNiMo-3 vs. ZK61A Magnesium

AWS ERNiMo-3 belongs to the nickel alloys classification, while ZK61A 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 ZK61A 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
290 to 310

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Melting Completion (Liquidus), °C 1600
640
Melting Onset (Solidus), °C 1540
530
Specific Heat Capacity, J/kg-K 400
960
Thermal Expansion, µm/m-K 11
27

Otherwise Unclassified Properties

Base Metal Price, % relative 70
13
Density, g/cm3 9.1
1.9
Embodied Carbon, kg CO2/kg material 15
23
Embodied Energy, MJ/kg 190
160
Embodied Water, L/kg 270
940

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
62
Strength to Weight: Axial, points 24
42 to 45
Strength to Weight: Bending, points 21
50 to 53
Thermal Shock Resistance, points 24
17 to 18

Alloy Composition

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 0.1
Iron (Fe), % 4.0 to 7.0
0
Magnesium (Mg), % 0
92.1 to 93.9
Manganese (Mn), % 0 to 1.0
0
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
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 0.6
0
Zinc (Zn), % 0
5.5 to 6.5
Zirconium (Zr), % 0
0.6 to 1.0
Residuals, % 0
0 to 0.3