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AZ91A Magnesium vs. EN 2.4851 Nickel

AZ91A magnesium belongs to the magnesium alloys classification, while EN 2.4851 nickel belongs to the nickel alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 EN 2.4851 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
190
Elastic (Young's, Tensile) Modulus, GPa 46
200
Elongation at Break, % 5.0
34
Fatigue Strength, MPa 99
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
76
Shear Strength, MPa 140
430
Tensile Strength: Ultimate (UTS), MPa 240
650
Tensile Strength: Yield (Proof), MPa 160
230

Thermal Properties

Latent Heat of Fusion, J/g 360
320
Maximum Temperature: Mechanical, °C 130
1200
Melting Completion (Liquidus), °C 600
1360
Melting Onset (Solidus), °C 470
1310
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 73
11
Thermal Expansion, µm/m-K 26
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 52
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
49
Density, g/cm3 1.7
8.2
Embodied Carbon, kg CO2/kg material 22
8.1
Embodied Energy, MJ/kg 160
120
Embodied Water, L/kg 990
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
170
Resilience: Unit (Modulus of Resilience), kJ/m3 280
130
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
23
Strength to Weight: Axial, points 38
22
Strength to Weight: Bending, points 49
20
Thermal Diffusivity, mm2/s 42
2.9
Thermal Shock Resistance, points 14
17

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
1.0 to 1.7
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0
0.030 to 0.1
Chromium (Cr), % 0
21 to 25
Copper (Cu), % 0 to 0.1
0 to 0.5
Iron (Fe), % 0
7.7 to 18
Magnesium (Mg), % 88.2 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0 to 1.0
Nickel (Ni), % 0 to 0.030
58 to 63
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0 to 0.5
Zinc (Zn), % 0.35 to 1.0
0