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AWS BNi-4 vs. 4004 Aluminum

AWS BNi-4 belongs to the nickel alloys classification, while 4004 aluminum belongs to the aluminum alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, 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 4004 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
110

Thermal Properties

Brazing Temperature, °C 1010 to 1180
590 to 600
Latent Heat of Fusion, J/g 340
540
Melting Completion (Liquidus), °C 1070
600
Melting Onset (Solidus), °C 980
560
Specific Heat Capacity, J/kg-K 470
910
Thermal Expansion, µm/m-K 11
22

Otherwise Unclassified Properties

Base Metal Price, % relative 60
9.5
Density, g/cm3 8.5
2.6
Embodied Carbon, kg CO2/kg material 10
8.0
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 220
1070

Common Calculations

Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 22
54
Strength to Weight: Axial, points 14
12
Strength to Weight: Bending, points 15
20
Thermal Shock Resistance, points 16
5.1

Alloy Composition

Aluminum (Al), % 0 to 0.050
86 to 90
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
0 to 0.25
Iron (Fe), % 0 to 1.5
0 to 0.8
Magnesium (Mg), % 0
1.0 to 2.0
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 91.4 to 95.5
0
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 3.0 to 4.0
9.0 to 10.5
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.15