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8176 Aluminum vs. AWS BNi-7

8176 aluminum belongs to the aluminum alloys classification, while AWS BNi-7 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 8176 aluminum and the bottom bar is AWS BNi-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
170
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 26
67
Tensile Strength: Ultimate (UTS), MPa 160
550

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Melting Completion (Liquidus), °C 660
890
Melting Onset (Solidus), °C 650
890
Specific Heat Capacity, J/kg-K 900
490
Thermal Expansion, µm/m-K 24
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
55
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 8.2
8.8
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 1190
240

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 16
19
Strength to Weight: Bending, points 24
19
Thermal Shock Resistance, points 7.0
21

Alloy Composition

Aluminum (Al), % 98.6 to 99.6
0 to 0.050
Boron (B), % 0
0 to 0.010
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
13 to 15
Cobalt (Co), % 0
0 to 0.1
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0.4 to 1.0
0 to 0.2
Manganese (Mn), % 0
0 to 0.040
Nickel (Ni), % 0
73.3 to 77.3
Phosphorus (P), % 0
9.7 to 10.5
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0.030 to 0.15
0 to 0.1
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.1
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5