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AWS BAg-18 vs. AWS BNi-7

AWS BAg-18 belongs to the otherwise unclassified metals classification, while AWS BNi-7 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-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
170
Poisson's Ratio 0.36
0.3
Shear Modulus, GPa 30
67
Tensile Strength: Ultimate (UTS), MPa 170
550

Thermal Properties

Brazing Temperature, °C 720 to 980
930 to 1090
Latent Heat of Fusion, J/g 130
280
Melting Completion (Liquidus), °C 720
890
Melting Onset (Solidus), °C 600
890
Specific Heat Capacity, J/kg-K 280
490
Thermal Expansion, µm/m-K 19
11

Otherwise Unclassified Properties

Density, g/cm3 9.7
8.0
Embodied Carbon, kg CO2/kg material 59
8.8
Embodied Energy, MJ/kg 930
120

Common Calculations

Stiffness to Weight: Axial, points 4.7
12
Stiffness to Weight: Bending, points 15
23
Strength to Weight: Axial, points 4.9
19
Strength to Weight: Bending, points 7.0
19
Thermal Shock Resistance, points 7.7
21

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
0 to 0.010
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
13 to 15
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 28.4 to 31.5
0
Iron (Fe), % 0
0 to 0.2
Manganese (Mn), % 0
0 to 0.040
Nickel (Ni), % 0
73.3 to 77.3
Phosphorus (P), % 0
9.7 to 10.5
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
0 to 0.1
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