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AZ91A Magnesium vs. Nickel 200

AZ91A magnesium belongs to the magnesium alloys classification, while nickel 200 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 nickel 200.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
180
Elongation at Break, % 5.0
23 to 44
Fatigue Strength, MPa 99
120 to 350
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
70
Shear Strength, MPa 140
300 to 340
Tensile Strength: Ultimate (UTS), MPa 240
420 to 540
Tensile Strength: Yield (Proof), MPa 160
120 to 370

Thermal Properties

Latent Heat of Fusion, J/g 360
290
Maximum Temperature: Mechanical, °C 130
900
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 470
1440
Specific Heat Capacity, J/kg-K 990
450
Thermal Conductivity, W/m-K 73
69
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
18
Electrical Conductivity: Equal Weight (Specific), % IACS 52
18

Otherwise Unclassified Properties

Base Metal Price, % relative 12
65
Density, g/cm3 1.7
8.9
Embodied Carbon, kg CO2/kg material 22
11
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 280
42 to 370
Stiffness to Weight: Axial, points 15
11
Stiffness to Weight: Bending, points 69
21
Strength to Weight: Axial, points 38
13 to 17
Strength to Weight: Bending, points 49
14 to 17
Thermal Diffusivity, mm2/s 42
17
Thermal Shock Resistance, points 14
13 to 16

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Carbon (C), % 0
0 to 0.15
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 0
0 to 0.4
Magnesium (Mg), % 88.2 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0 to 0.35
Nickel (Ni), % 0 to 0.030
99 to 100
Silicon (Si), % 0 to 0.5
0 to 0.35
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0.35 to 1.0
0