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AWS BNi-8 vs. Grade CY40 Nickel

Both AWS BNi-8 and grade CY40 nickel are nickel alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 67% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-8 and the bottom bar is grade CY40 nickel.

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
74
Tensile Strength: Ultimate (UTS), MPa 570
540

Thermal Properties

Latent Heat of Fusion, J/g 390
330
Melting Completion (Liquidus), °C 1010
1350
Melting Onset (Solidus), °C 980
1300
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 46
55
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 8.2
9.1
Embodied Energy, MJ/kg 120
130
Embodied Water, L/kg 220
260

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 20
18
Strength to Weight: Bending, points 19
18
Thermal Shock Resistance, points 17
16

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Carbon (C), % 0 to 0.060
0 to 0.4
Chromium (Cr), % 0
14 to 17
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0
0 to 11
Manganese (Mn), % 21.5 to 24.5
0 to 1.5
Nickel (Ni), % 61.6 to 68.5
67 to 86
Phosphorus (P), % 0 to 0.020
0 to 0.030
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 6.0 to 8.0
0 to 3.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0