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WE43B Magnesium vs. Grade CW6M Nickel

WE43B magnesium belongs to the magnesium alloys classification, while grade CW6M nickel belongs to the nickel alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, 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 WE43B magnesium and the bottom bar is grade CW6M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
220
Elongation at Break, % 2.2
29
Fatigue Strength, MPa 110
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
84
Tensile Strength: Ultimate (UTS), MPa 250
560
Tensile Strength: Yield (Proof), MPa 200
310

Thermal Properties

Latent Heat of Fusion, J/g 330
330
Maximum Temperature: Mechanical, °C 180
970
Melting Completion (Liquidus), °C 640
1530
Melting Onset (Solidus), °C 550
1470
Specific Heat Capacity, J/kg-K 960
430
Thermal Expansion, µm/m-K 27
12

Otherwise Unclassified Properties

Base Metal Price, % relative 34
65
Density, g/cm3 1.9
8.8
Embodied Carbon, kg CO2/kg material 28
13
Embodied Energy, MJ/kg 250
170
Embodied Water, L/kg 910
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
140
Resilience: Unit (Modulus of Resilience), kJ/m3 430
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
23
Strength to Weight: Axial, points 36
18
Strength to Weight: Bending, points 46
17
Thermal Shock Resistance, points 15
16

Alloy Composition

Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
17 to 20
Copper (Cu), % 0 to 0.020
0
Iron (Fe), % 0 to 0.010
0 to 3.0
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0
Manganese (Mn), % 0 to 0.030
0 to 1.0
Molybdenum (Mo), % 0
17 to 20
Nickel (Ni), % 0 to 0.0050
54.9 to 66
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0