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3102 Aluminum vs. AWS BNi-8

3102 aluminum belongs to the aluminum alloys classification, while AWS BNi-8 belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (12, 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 3102 aluminum and the bottom bar is AWS BNi-8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
180
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
67
Tensile Strength: Ultimate (UTS), MPa 92 to 100
570

Thermal Properties

Latent Heat of Fusion, J/g 400
390
Melting Completion (Liquidus), °C 640
1010
Melting Onset (Solidus), °C 640
980
Specific Heat Capacity, J/kg-K 900
480
Thermal Expansion, µm/m-K 23
13

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
46
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.2
8.2
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 1190
220

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 9.4 to 10
20
Strength to Weight: Bending, points 17 to 18
19
Thermal Shock Resistance, points 4.1 to 4.4
17

Alloy Composition

Aluminum (Al), % 97.9 to 99.95
0 to 0.050
Carbon (C), % 0
0 to 0.060
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0 to 0.1
4.0 to 5.0
Iron (Fe), % 0 to 0.7
0
Manganese (Mn), % 0.050 to 0.4
21.5 to 24.5
Nickel (Ni), % 0
61.6 to 68.5
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.4
6.0 to 8.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.1
0 to 0.050
Zinc (Zn), % 0 to 0.3
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5