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EN AC-21100 Aluminum vs. AWS BNi-6

EN AC-21100 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 (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 EN AC-21100 aluminum and the bottom bar is AWS BNi-6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
160
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 27
62
Tensile Strength: Ultimate (UTS), MPa 340 to 350
450

Thermal Properties

Latent Heat of Fusion, J/g 390
260
Melting Completion (Liquidus), °C 670
880
Melting Onset (Solidus), °C 550
880
Specific Heat Capacity, J/kg-K 880
480
Thermal Expansion, µm/m-K 23
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 11
55
Density, g/cm3 3.0
8.2
Embodied Carbon, kg CO2/kg material 8.0
9.4
Embodied Energy, MJ/kg 150
130
Embodied Water, L/kg 1150
210

Common Calculations

Stiffness to Weight: Axial, points 13
11
Stiffness to Weight: Bending, points 46
22
Strength to Weight: Axial, points 31 to 33
15
Strength to Weight: Bending, points 36 to 37
16
Thermal Shock Resistance, points 15
20

Alloy Composition

Aluminum (Al), % 93.4 to 95.7
0 to 0.050
Carbon (C), % 0
0 to 0.060
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 4.2 to 5.2
0
Iron (Fe), % 0 to 0.19
0
Manganese (Mn), % 0 to 0.55
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 0.18
0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0.15 to 0.3
0 to 0.050
Zinc (Zn), % 0 to 0.070
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5