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707.0 Aluminum vs. AWS BNi-3

707.0 aluminum belongs to the aluminum alloys classification, while AWS BNi-3 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 707.0 aluminum and the bottom bar is AWS BNi-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
170
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
66
Tensile Strength: Ultimate (UTS), MPa 270 to 300
430

Thermal Properties

Latent Heat of Fusion, J/g 380
350
Melting Completion (Liquidus), °C 630
1040
Melting Onset (Solidus), °C 600
980
Specific Heat Capacity, J/kg-K 880
480
Thermal Expansion, µm/m-K 24
10

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
60
Density, g/cm3 2.9
8.3
Embodied Carbon, kg CO2/kg material 8.3
9.9
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1140
220

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 47
22
Strength to Weight: Axial, points 26 to 29
14
Strength to Weight: Bending, points 32 to 34
15
Thermal Shock Resistance, points 12 to 13
17

Alloy Composition

Aluminum (Al), % 90.5 to 93.6
0 to 0.050
Boron (B), % 0
2.8 to 3.5
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0.2 to 0.4
0
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.8
0 to 0.5
Magnesium (Mg), % 1.8 to 2.4
0
Manganese (Mn), % 0.4 to 0.6
0
Nickel (Ni), % 0
90.1 to 93.3
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.2
4.0 to 5.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.25
0 to 0.050
Zinc (Zn), % 4.0 to 4.5
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5