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AZ91A Magnesium vs. EN 2.4951 Nickel

AZ91A magnesium belongs to the magnesium alloys classification, while EN 2.4951 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 2.4951 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
200
Elastic (Young's, Tensile) Modulus, GPa 46
190
Elongation at Break, % 5.0
34
Fatigue Strength, MPa 99
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
76
Shear Strength, MPa 140
500
Tensile Strength: Ultimate (UTS), MPa 240
750
Tensile Strength: Yield (Proof), MPa 160
270

Thermal Properties

Latent Heat of Fusion, J/g 360
320
Maximum Temperature: Mechanical, °C 130
1150
Melting Completion (Liquidus), °C 600
1360
Melting Onset (Solidus), °C 470
1310
Specific Heat Capacity, J/kg-K 990
460
Thermal Conductivity, W/m-K 73
12
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 52
1.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
60
Density, g/cm3 1.7
8.5
Embodied Carbon, kg CO2/kg material 22
9.3
Embodied Energy, MJ/kg 160
130
Embodied Water, L/kg 990
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
200
Resilience: Unit (Modulus of Resilience), kJ/m3 280
190
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
23
Strength to Weight: Axial, points 38
25
Strength to Weight: Bending, points 49
22
Thermal Diffusivity, mm2/s 42
3.1
Thermal Shock Resistance, points 14
23

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0 to 0.3
Carbon (C), % 0
0.080 to 0.15
Chromium (Cr), % 0
18 to 21
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0 to 0.1
0 to 0.5
Iron (Fe), % 0
0 to 5.0
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
65.4 to 81.7
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.2 to 0.6
Zinc (Zn), % 0.35 to 1.0
0