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AS41A Magnesium vs. Nickel 908

AS41A magnesium belongs to the magnesium alloys classification, while nickel 908 belongs to the nickel alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 AS41A magnesium and the bottom bar is nickel 908.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
180
Elongation at Break, % 11
11
Fatigue Strength, MPa 100
450
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 17
70
Shear Strength, MPa 130
800
Tensile Strength: Ultimate (UTS), MPa 230
1340
Tensile Strength: Yield (Proof), MPa 140
930

Thermal Properties

Latent Heat of Fusion, J/g 370
290
Maximum Temperature: Mechanical, °C 110
920
Melting Completion (Liquidus), °C 620
1430
Melting Onset (Solidus), °C 570
1380
Specific Heat Capacity, J/kg-K 1000
460
Thermal Conductivity, W/m-K 68
11
Thermal Expansion, µm/m-K 26
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
50
Density, g/cm3 1.6
8.3
Embodied Carbon, kg CO2/kg material 23
9.3
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 980
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
140
Resilience: Unit (Modulus of Resilience), kJ/m3 220
2340
Stiffness to Weight: Axial, points 15
12
Stiffness to Weight: Bending, points 72
23
Strength to Weight: Axial, points 38
45
Strength to Weight: Bending, points 50
33
Thermal Diffusivity, mm2/s 41
2.9
Thermal Shock Resistance, points 14
61

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0.75 to 1.3
Boron (B), % 0
0 to 0.012
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
3.8 to 4.5
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.060
0 to 0.5
Iron (Fe), % 0
35.6 to 44.6
Magnesium (Mg), % 92.8 to 95.8
0
Manganese (Mn), % 0.2 to 0.5
0 to 1.0
Nickel (Ni), % 0 to 0.030
47 to 51
Niobium (Nb), % 0
2.7 to 3.3
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0.5 to 1.5
0 to 0.5
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 0
1.2 to 1.8
Zinc (Zn), % 0 to 0.12
0