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Nickel 718 vs. AWS BNi-9

Both nickel 718 and AWS BNi-9 are nickel alloys. They have 68% 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 nickel 718 and the bottom bar is AWS BNi-9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 75
72
Tensile Strength: Ultimate (UTS), MPa 930 to 1530
580

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Melting Completion (Liquidus), °C 1340
1060
Melting Onset (Solidus), °C 1260
1060
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
60
Density, g/cm3 8.3
8.4
Embodied Carbon, kg CO2/kg material 13
9.3
Embodied Energy, MJ/kg 190
130
Embodied Water, L/kg 250
260

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 31 to 51
19
Strength to Weight: Bending, points 25 to 35
18
Thermal Shock Resistance, points 27 to 44
19

Alloy Composition

Aluminum (Al), % 0.2 to 0.8
0 to 0.050
Boron (B), % 0 to 0.0060
3.3 to 4.0
Carbon (C), % 0 to 0.080
0 to 0.060
Chromium (Cr), % 17 to 21
13.5 to 16.5
Cobalt (Co), % 0 to 1.0
0 to 0.1
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 11.1 to 24.6
0 to 1.5
Manganese (Mn), % 0 to 0.35
0
Molybdenum (Mo), % 2.8 to 3.3
0
Nickel (Ni), % 50 to 55
77.1 to 83.3
Niobium (Nb), % 4.8 to 5.5
0
Phosphorus (P), % 0 to 0.015
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.35
0
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0.65 to 1.2
0 to 0.050
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5