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7475 Aluminum vs. Nickel 693

7475 aluminum belongs to the aluminum alloys classification, while nickel 693 belongs to the nickel alloys. There are 28 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 7475 aluminum and the bottom bar is nickel 693.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 10 to 12
34
Fatigue Strength, MPa 190 to 210
230
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 320 to 350
440
Tensile Strength: Ultimate (UTS), MPa 530 to 590
660
Tensile Strength: Yield (Proof), MPa 440 to 520
310

Thermal Properties

Latent Heat of Fusion, J/g 380
330
Maximum Temperature: Mechanical, °C 180
1010
Melting Completion (Liquidus), °C 640
1350
Melting Onset (Solidus), °C 480
1310
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 140 to 160
9.1
Thermal Expansion, µm/m-K 23
13

Otherwise Unclassified Properties

Base Metal Price, % relative 10
60
Density, g/cm3 3.0
8.1
Embodied Carbon, kg CO2/kg material 8.2
9.9
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1130
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 53 to 68
190
Resilience: Unit (Modulus of Resilience), kJ/m3 1390 to 1920
250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 49 to 55
23
Strength to Weight: Bending, points 48 to 52
21
Thermal Diffusivity, mm2/s 53 to 63
2.3
Thermal Shock Resistance, points 23 to 26
19

Alloy Composition


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Aluminum (Al), % 88.6 to 91.6
2.5 to 4.0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0.18 to 0.25
27 to 31
Copper (Cu), % 1.2 to 1.9
0 to 0.5
Iron (Fe), % 0 to 0.12
2.5 to 6.0
Magnesium (Mg), % 1.9 to 2.6
0
Manganese (Mn), % 0 to 0.060
0 to 1.0
Nickel (Ni), % 0
53.3 to 67.5
Niobium (Nb), % 0
0.5 to 2.5
Silicon (Si), % 0 to 0.1
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.060
0 to 1.0
Zinc (Zn), % 5.1 to 6.2
0
Residuals, % 0 to 0.15
0