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AWS ENiCrMo-4 vs. AZ31C Magnesium

AWS ENiCrMo-4 belongs to the nickel alloys classification, while AZ31C magnesium belongs to the magnesium alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, 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 ENiCrMo-4 and the bottom bar is AZ31C magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
45
Elongation at Break, % 28
12
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 84
17
Tensile Strength: Ultimate (UTS), MPa 790
260

Thermal Properties

Latent Heat of Fusion, J/g 320
350
Melting Completion (Liquidus), °C 1590
600
Melting Onset (Solidus), °C 1530
550
Specific Heat Capacity, J/kg-K 410
990
Thermal Expansion, µm/m-K 12
26

Otherwise Unclassified Properties

Base Metal Price, % relative 70
12
Density, g/cm3 9.0
1.7
Embodied Carbon, kg CO2/kg material 13
23
Embodied Energy, MJ/kg 170
160
Embodied Water, L/kg 280
970

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 22
70
Strength to Weight: Axial, points 24
42
Strength to Weight: Bending, points 21
53
Thermal Shock Resistance, points 22
16

Alloy Composition

Aluminum (Al), % 0
2.4 to 3.6
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 14.5 to 16.5
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
93.4 to 97
Manganese (Mn), % 0 to 1.0
0.15 to 1.0
Molybdenum (Mo), % 15 to 17
0
Nickel (Ni), % 49.9 to 63.5
0 to 0.030
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.2
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 3.0 to 4.5
0
Vanadium (V), % 0 to 0.35
0
Zinc (Zn), % 0
0.5 to 1.5
Residuals, % 0
0 to 0.3