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AWS BNi-7 vs. EN AC-42100 Aluminum

AWS BNi-7 belongs to the nickel alloys classification, while EN AC-42100 aluminum belongs to the aluminum 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 AWS BNi-7 and the bottom bar is EN AC-42100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
70
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 67
26
Tensile Strength: Ultimate (UTS), MPa 550
280 to 290

Thermal Properties

Latent Heat of Fusion, J/g 280
500
Melting Completion (Liquidus), °C 890
610
Melting Onset (Solidus), °C 890
600
Specific Heat Capacity, J/kg-K 490
910
Thermal Expansion, µm/m-K 11
22

Otherwise Unclassified Properties

Base Metal Price, % relative 55
9.5
Density, g/cm3 8.0
2.6
Embodied Carbon, kg CO2/kg material 8.8
8.0
Embodied Energy, MJ/kg 120
150
Embodied Water, L/kg 240
1110

Common Calculations

Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 23
53
Strength to Weight: Axial, points 19
30 to 31
Strength to Weight: Bending, points 19
37 to 38
Thermal Shock Resistance, points 21
13

Alloy Composition

Aluminum (Al), % 0 to 0.050
91.3 to 93.3
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 13 to 15
0
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 0 to 0.2
0 to 0.19
Magnesium (Mg), % 0
0.25 to 0.45
Manganese (Mn), % 0 to 0.040
0 to 0.1
Nickel (Ni), % 73.3 to 77.3
0
Phosphorus (P), % 9.7 to 10.5
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.1
6.5 to 7.5
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.050
0 to 0.25
Zinc (Zn), % 0
0 to 0.070
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.1