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AZ91B Magnesium vs. EN 2.4632 Nickel

AZ91B magnesium belongs to the magnesium alloys classification, while EN 2.4632 nickel belongs to the nickel alloys. There are 30 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 AZ91B magnesium and the bottom bar is EN 2.4632 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
200
Elongation at Break, % 5.0
17
Fatigue Strength, MPa 79
430
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
76
Shear Strength, MPa 140
770
Tensile Strength: Ultimate (UTS), MPa 240
1250
Tensile Strength: Yield (Proof), MPa 160
780

Thermal Properties

Latent Heat of Fusion, J/g 360
320
Maximum Temperature: Mechanical, °C 130
1010
Melting Completion (Liquidus), °C 600
1340
Melting Onset (Solidus), °C 470
1290
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 73
13
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 58
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
75
Density, g/cm3 1.7
8.3
Embodied Carbon, kg CO2/kg material 22
9.4
Embodied Energy, MJ/kg 160
130
Embodied Water, L/kg 990
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
180
Resilience: Unit (Modulus of Resilience), kJ/m3 280
1570
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
23
Strength to Weight: Axial, points 38
42
Strength to Weight: Bending, points 49
31
Thermal Diffusivity, mm2/s 42
3.3
Thermal Shock Resistance, points 14
39

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
1.0 to 2.0
Boron (B), % 0
0 to 0.020
Carbon (C), % 0
0 to 0.13
Chromium (Cr), % 0
18 to 21
Cobalt (Co), % 0
15 to 21
Copper (Cu), % 0 to 0.35
0 to 0.2
Iron (Fe), % 0
0 to 1.5
Magnesium (Mg), % 87.9 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0 to 1.0
Nickel (Ni), % 0 to 0.030
49 to 64
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
2.0 to 3.0
Zinc (Zn), % 0.35 to 1.0
0
Zirconium (Zr), % 0
0 to 0.15