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5056 Aluminum vs. Nickel 684

5056 aluminum belongs to the aluminum alloys classification, while nickel 684 belongs to the nickel alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 5056 aluminum and the bottom bar is nickel 684.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
200
Elongation at Break, % 4.9 to 31
11
Fatigue Strength, MPa 140 to 200
390
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
76
Shear Strength, MPa 170 to 240
710
Tensile Strength: Ultimate (UTS), MPa 290 to 460
1190
Tensile Strength: Yield (Proof), MPa 150 to 410
800

Thermal Properties

Latent Heat of Fusion, J/g 400
320
Maximum Temperature: Mechanical, °C 190
1000
Melting Completion (Liquidus), °C 640
1370
Melting Onset (Solidus), °C 570
1320
Specific Heat Capacity, J/kg-K 910
470
Thermal Expansion, µm/m-K 24
13

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
75
Density, g/cm3 2.7
8.3
Embodied Carbon, kg CO2/kg material 9.0
10
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1180
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 140
120
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 1220
1610
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
23
Strength to Weight: Axial, points 30 to 48
40
Strength to Weight: Bending, points 36 to 50
30
Thermal Shock Resistance, points 13 to 20
34

Alloy Composition

Aluminum (Al), % 93 to 95.4
2.5 to 3.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0.050 to 0.2
15 to 20
Cobalt (Co), % 0
13 to 20
Copper (Cu), % 0 to 0.1
0 to 0.15
Iron (Fe), % 0 to 0.4
0 to 4.0
Magnesium (Mg), % 4.5 to 5.6
0
Manganese (Mn), % 0.050 to 0.2
0 to 0.75
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 0
42.7 to 64
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.3
0 to 0.75
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
2.5 to 3.3
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0