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AWS BNi-1a vs. 4147 Aluminum

AWS BNi-1a belongs to the nickel alloys classification, while 4147 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-1a and the bottom bar is 4147 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
72
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 70
27
Tensile Strength: Ultimate (UTS), MPa 450
110

Thermal Properties

Brazing Temperature, °C 1080 to 1200
580 to 600
Latent Heat of Fusion, J/g 370
570
Melting Completion (Liquidus), °C 1080
580
Melting Onset (Solidus), °C 980
560
Specific Heat Capacity, J/kg-K 500
900
Thermal Expansion, µm/m-K 12
21

Otherwise Unclassified Properties

Base Metal Price, % relative 55
9.5
Density, g/cm3 8.0
2.5
Embodied Carbon, kg CO2/kg material 8.8
7.7
Embodied Energy, MJ/kg 120
140
Embodied Water, L/kg 240
1050

Common Calculations

Stiffness to Weight: Axial, points 13
16
Stiffness to Weight: Bending, points 24
55
Strength to Weight: Axial, points 16
12
Strength to Weight: Bending, points 16
20
Thermal Shock Resistance, points 15
5.2

Alloy Composition

Aluminum (Al), % 0 to 0.050
85 to 88.9
Beryllium (Be), % 0
0 to 0.00030
Boron (B), % 2.8 to 3.5
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 0.25
Iron (Fe), % 4.0 to 5.0
0 to 0.8
Magnesium (Mg), % 0
0.1 to 0.5
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 70.6 to 76.3
0
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
11 to 13
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