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AWS BAg-18 vs. AWS BNi-3

AWS BAg-18 belongs to the otherwise unclassified metals classification, while AWS BNi-3 belongs to the nickel alloys. There are 18 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-18 and the bottom bar is AWS BNi-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
170
Poisson's Ratio 0.36
0.31
Shear Modulus, GPa 30
66
Tensile Strength: Ultimate (UTS), MPa 170
430

Thermal Properties

Brazing Temperature, °C 720 to 980
1010 to 1180
Latent Heat of Fusion, J/g 130
350
Melting Completion (Liquidus), °C 720
1040
Melting Onset (Solidus), °C 600
980
Specific Heat Capacity, J/kg-K 280
480
Thermal Expansion, µm/m-K 19
10

Otherwise Unclassified Properties

Density, g/cm3 9.7
8.3
Embodied Carbon, kg CO2/kg material 59
9.9
Embodied Energy, MJ/kg 930
140

Common Calculations

Stiffness to Weight: Axial, points 4.7
12
Stiffness to Weight: Bending, points 15
22
Strength to Weight: Axial, points 4.9
14
Strength to Weight: Bending, points 7.0
15
Thermal Shock Resistance, points 7.7
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
2.8 to 3.5
Carbon (C), % 0
0 to 0.060
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 28.4 to 31.5
0
Iron (Fe), % 0
0 to 0.5
Nickel (Ni), % 0
90.1 to 93.3
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
4.0 to 5.0
Silver (Ag), % 59 to 61
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 9.5 to 10.5
0
Titanium (Ti), % 0
0 to 0.050
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0 to 0.15
0 to 0.5