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4343 Aluminum vs. AWS BNi-6

4343 aluminum belongs to the aluminum alloys classification, while AWS BNi-6 belongs to the nickel 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 4343 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 110
450

Thermal Properties

Brazing Temperature, °C 600 to 620
930 to 1090
Latent Heat of Fusion, J/g 510
260
Melting Completion (Liquidus), °C 620
880
Melting Onset (Solidus), °C 580
880
Specific Heat Capacity, J/kg-K 900
480
Thermal Expansion, µm/m-K 22
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
55
Density, g/cm3 2.6
8.2
Embodied Carbon, kg CO2/kg material 7.9
9.4
Embodied Energy, MJ/kg 150
130
Embodied Water, L/kg 1100
210

Common Calculations

Stiffness to Weight: Axial, points 15
11
Stiffness to Weight: Bending, points 53
22
Strength to Weight: Axial, points 12
15
Strength to Weight: Bending, points 20
16
Thermal Shock Resistance, points 5.2
20

Alloy Composition

Aluminum (Al), % 90.3 to 93.2
0 to 0.050
Carbon (C), % 0
0 to 0.060
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.8
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
87.2 to 90
Phosphorus (P), % 0
10 to 12
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 6.8 to 8.2
0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5