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AWS BNi-8 vs. Nickel 718

Both AWS BNi-8 and nickel 718 are nickel alloys. They have 53% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-8 and the bottom bar is nickel 718.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 67
75
Tensile Strength: Ultimate (UTS), MPa 570
930 to 1530

Thermal Properties

Latent Heat of Fusion, J/g 390
310
Melting Completion (Liquidus), °C 1010
1340
Melting Onset (Solidus), °C 980
1260
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 46
75
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 8.2
13
Embodied Energy, MJ/kg 120
190
Embodied Water, L/kg 220
250

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 20
31 to 51
Strength to Weight: Bending, points 19
25 to 35
Thermal Shock Resistance, points 17
27 to 44

Alloy Composition

Aluminum (Al), % 0 to 0.050
0.2 to 0.8
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 0
17 to 21
Cobalt (Co), % 0 to 0.1
0 to 1.0
Copper (Cu), % 4.0 to 5.0
0 to 0.3
Iron (Fe), % 0
11.1 to 24.6
Manganese (Mn), % 21.5 to 24.5
0 to 0.35
Molybdenum (Mo), % 0
2.8 to 3.3
Nickel (Ni), % 61.6 to 68.5
50 to 55
Niobium (Nb), % 0
4.8 to 5.5
Phosphorus (P), % 0 to 0.020
0 to 0.015
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 6.0 to 8.0
0 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0 to 0.050
0.65 to 1.2
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0