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AWS BNi-1a vs. 390.0 Aluminum

AWS BNi-1a belongs to the nickel alloys classification, while 390.0 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-1a and the bottom bar is 390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
75
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 70
28
Tensile Strength: Ultimate (UTS), MPa 450
280 to 300

Thermal Properties

Latent Heat of Fusion, J/g 370
640
Melting Completion (Liquidus), °C 1080
650
Melting Onset (Solidus), °C 980
560
Specific Heat Capacity, J/kg-K 500
880
Thermal Expansion, µm/m-K 12
18

Otherwise Unclassified Properties

Base Metal Price, % relative 55
11
Density, g/cm3 8.0
2.7
Embodied Carbon, kg CO2/kg material 8.8
7.3
Embodied Energy, MJ/kg 120
130
Embodied Water, L/kg 240
950

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
52
Strength to Weight: Axial, points 16
28 to 30
Strength to Weight: Bending, points 16
35 to 36
Thermal Shock Resistance, points 15
14 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.050
74.5 to 79.6
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
4.0 to 5.0
Iron (Fe), % 4.0 to 5.0
0 to 1.3
Magnesium (Mg), % 0
0.45 to 0.65
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
16 to 18
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.050
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.2