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7178 Aluminum vs. Grade M35-1 Nickel

7178 aluminum belongs to the aluminum alloys classification, while grade M35-1 nickel belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 7178 aluminum and the bottom bar is grade M35-1 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
160
Elongation at Break, % 4.5 to 12
28
Fatigue Strength, MPa 120 to 210
130
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 27
62
Tensile Strength: Ultimate (UTS), MPa 240 to 640
500
Tensile Strength: Yield (Proof), MPa 120 to 560
190

Thermal Properties

Latent Heat of Fusion, J/g 370
280
Maximum Temperature: Mechanical, °C 180
900
Melting Completion (Liquidus), °C 630
1280
Melting Onset (Solidus), °C 480
1240
Specific Heat Capacity, J/kg-K 860
430
Thermal Conductivity, W/m-K 130
22
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 91
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
55
Density, g/cm3 3.1
8.8
Embodied Carbon, kg CO2/kg material 8.2
8.2
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 1110
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 52
110
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 2220
120
Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 45
21
Strength to Weight: Axial, points 21 to 58
16
Strength to Weight: Bending, points 28 to 54
16
Thermal Diffusivity, mm2/s 47
5.7
Thermal Shock Resistance, points 10 to 28
17

Alloy Composition

Aluminum (Al), % 85.4 to 89.5
0
Carbon (C), % 0
0 to 0.35
Chromium (Cr), % 0.18 to 0.28
0
Copper (Cu), % 1.6 to 2.4
26 to 33
Iron (Fe), % 0 to 0.5
0 to 3.5
Magnesium (Mg), % 2.4 to 3.1
0
Manganese (Mn), % 0 to 0.3
0 to 1.5
Nickel (Ni), % 0
59.8 to 74
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 1.3
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 6.3 to 7.3
0
Residuals, % 0 to 0.15
0