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AWS BNi-4 vs. EN AC-21200 Aluminum

AWS BNi-4 belongs to the nickel alloys classification, while EN AC-21200 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-4 and the bottom bar is EN AC-21200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
71
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 67
27
Tensile Strength: Ultimate (UTS), MPa 430
410 to 440

Thermal Properties

Latent Heat of Fusion, J/g 340
390
Melting Completion (Liquidus), °C 1070
660
Melting Onset (Solidus), °C 980
550
Specific Heat Capacity, J/kg-K 470
880
Thermal Expansion, µm/m-K 11
23

Otherwise Unclassified Properties

Base Metal Price, % relative 60
10
Density, g/cm3 8.5
3.0
Embodied Carbon, kg CO2/kg material 10
8.0
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 220
1150

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 22
46
Strength to Weight: Axial, points 14
38 to 40
Strength to Weight: Bending, points 15
41 to 43
Thermal Shock Resistance, points 16
18 to 19

Alloy Composition

Aluminum (Al), % 0 to 0.050
93.3 to 95.7
Boron (B), % 1.5 to 2.2
0
Carbon (C), % 0 to 0.060
0
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 0 to 1.5
0 to 0.2
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 0
0.15 to 0.5
Manganese (Mn), % 0
0.2 to 0.5
Nickel (Ni), % 91.4 to 95.5
0 to 0.050
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 3.0 to 4.0
0 to 0.1
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.050
0 to 0.1
Zinc (Zn), % 0
0 to 0.1
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.1