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AZ91A Magnesium vs. Grade M35-2 Nickel

AZ91A magnesium belongs to the magnesium alloys classification, while grade M35-2 nickel belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 AZ91A magnesium and the bottom bar is grade M35-2 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
160
Elongation at Break, % 5.0
28
Fatigue Strength, MPa 99
160
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
62
Tensile Strength: Ultimate (UTS), MPa 240
500
Tensile Strength: Yield (Proof), MPa 160
230

Thermal Properties

Latent Heat of Fusion, J/g 360
280
Maximum Temperature: Mechanical, °C 130
900
Melting Completion (Liquidus), °C 600
1280
Melting Onset (Solidus), °C 470
1230
Specific Heat Capacity, J/kg-K 990
430
Thermal Conductivity, W/m-K 73
22
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 52
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
55
Density, g/cm3 1.7
8.8
Embodied Carbon, kg CO2/kg material 22
8.1
Embodied Energy, MJ/kg 160
110
Embodied Water, L/kg 990
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
120
Resilience: Unit (Modulus of Resilience), kJ/m3 280
170
Stiffness to Weight: Axial, points 15
10
Stiffness to Weight: Bending, points 69
21
Strength to Weight: Axial, points 38
16
Strength to Weight: Bending, points 49
16
Thermal Diffusivity, mm2/s 42
5.7
Thermal Shock Resistance, points 14
17

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Carbon (C), % 0
0 to 0.35
Copper (Cu), % 0 to 0.1
26 to 33
Iron (Fe), % 0
0 to 3.5
Magnesium (Mg), % 88.2 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0 to 1.5
Nickel (Ni), % 0 to 0.030
59.1 to 74
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 2.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0.35 to 1.0
0