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705.0 Aluminum vs. AWS BNi-6

705.0 aluminum belongs to the aluminum alloys classification, while AWS BNi-6 belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, 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 705.0 aluminum and the bottom bar is AWS BNi-6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
160
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
62
Tensile Strength: Ultimate (UTS), MPa 240 to 260
450

Thermal Properties

Latent Heat of Fusion, J/g 390
260
Melting Completion (Liquidus), °C 640
880
Melting Onset (Solidus), °C 610
880
Specific Heat Capacity, J/kg-K 890
480
Thermal Expansion, µm/m-K 24
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
55
Density, g/cm3 2.8
8.2
Embodied Carbon, kg CO2/kg material 8.4
9.4
Embodied Energy, MJ/kg 150
130
Embodied Water, L/kg 1170
210

Common Calculations

Stiffness to Weight: Axial, points 14
11
Stiffness to Weight: Bending, points 49
22
Strength to Weight: Axial, points 24 to 26
15
Strength to Weight: Bending, points 31 to 32
16
Thermal Shock Resistance, points 11
20

Alloy Composition

Aluminum (Al), % 92.3 to 98.6
0 to 0.050
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0 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
Magnesium (Mg), % 1.4 to 1.8
0
Manganese (Mn), % 0 to 0.6
0
Nickel (Ni), % 0
87.2 to 90
Phosphorus (P), % 0
10 to 12
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.25
0 to 0.050
Zinc (Zn), % 0 to 3.3
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5