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AZ91A Magnesium vs. EN 2.4889 Nickel

AZ91A magnesium belongs to the magnesium alloys classification, while EN 2.4889 nickel belongs to the nickel alloys. There are 31 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 AZ91A magnesium and the bottom bar is EN 2.4889 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
190
Elastic (Young's, Tensile) Modulus, GPa 46
200
Elongation at Break, % 5.0
39
Fatigue Strength, MPa 99
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
77
Shear Strength, MPa 140
490
Tensile Strength: Ultimate (UTS), MPa 240
720
Tensile Strength: Yield (Proof), MPa 160
270

Thermal Properties

Latent Heat of Fusion, J/g 360
350
Maximum Temperature: Mechanical, °C 130
1200
Melting Completion (Liquidus), °C 600
1350
Melting Onset (Solidus), °C 470
1300
Specific Heat Capacity, J/kg-K 990
480
Thermal Conductivity, W/m-K 73
13
Thermal Expansion, µm/m-K 26
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 52
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
42
Density, g/cm3 1.7
8.0
Embodied Carbon, kg CO2/kg material 22
6.9
Embodied Energy, MJ/kg 160
98
Embodied Water, L/kg 990
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
220
Resilience: Unit (Modulus of Resilience), kJ/m3 280
180
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
24
Strength to Weight: Axial, points 38
25
Strength to Weight: Bending, points 49
22
Thermal Diffusivity, mm2/s 42
3.4
Thermal Shock Resistance, points 14
19

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Carbon (C), % 0
0.050 to 0.12
Cerium (Ce), % 0
0.030 to 0.090
Chromium (Cr), % 0
26 to 29
Copper (Cu), % 0 to 0.1
0 to 0.3
Iron (Fe), % 0
21 to 25
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
45 to 50.4
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.5
2.5 to 3.0
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0.35 to 1.0
0