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AWS BNi-1 vs. AWS BVAu-4

AWS BNi-1 belongs to the nickel alloys classification, while AWS BVAu-4 belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (4, 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-1 and the bottom bar is AWS BVAu-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
110
Poisson's Ratio 0.3
0.4
Shear Modulus, GPa 70
41
Tensile Strength: Ultimate (UTS), MPa 450
190

Thermal Properties

Brazing Temperature, °C 1070 to 1200
950 to 1000
Latent Heat of Fusion, J/g 360
100
Melting Completion (Liquidus), °C 1040
950
Melting Onset (Solidus), °C 980
950
Specific Heat Capacity, J/kg-K 500
190
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Density, g/cm3 8.0
17

Common Calculations

Stiffness to Weight: Axial, points 13
3.6
Stiffness to Weight: Bending, points 24
9.3
Strength to Weight: Axial, points 16
3.0
Strength to Weight: Bending, points 16
4.2
Thermal Shock Resistance, points 15
8.7

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 2.8 to 3.5
0
Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0.6 to 0.9
0 to 0.0050
Chromium (Cr), % 13 to 15
0
Cobalt (Co), % 0 to 0.1
0
Gold (Au), % 0
81.5 to 82.5
Iron (Fe), % 4.0 to 5.0
0
Lead (Pb), % 0
0 to 0.0020
Nickel (Ni), % 69.8 to 75.7
17.5 to 18.5
Phosphorus (P), % 0 to 0.020
0 to 0.0020
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0
0 to 0.0010
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0