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Grade CY40 Nickel vs. AWS BNi-7

Both grade CY40 nickel and AWS BNi-7 are nickel alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 90% 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 grade CY40 nickel and the bottom bar is AWS BNi-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
170
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 74
67
Tensile Strength: Ultimate (UTS), MPa 540
550

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Melting Completion (Liquidus), °C 1350
890
Melting Onset (Solidus), °C 1300
890
Specific Heat Capacity, J/kg-K 470
490
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 55
55
Density, g/cm3 8.4
8.0
Embodied Carbon, kg CO2/kg material 9.1
8.8
Embodied Energy, MJ/kg 130
120
Embodied Water, L/kg 260
240

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 18
19
Strength to Weight: Bending, points 18
19
Thermal Shock Resistance, points 16
21

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
0 to 0.010
Carbon (C), % 0 to 0.4
0 to 0.060
Chromium (Cr), % 14 to 17
13 to 15
Cobalt (Co), % 0
0 to 0.1
Iron (Fe), % 0 to 11
0 to 0.2
Manganese (Mn), % 0 to 1.5
0 to 0.040
Nickel (Ni), % 67 to 86
73.3 to 77.3
Phosphorus (P), % 0 to 0.030
9.7 to 10.5
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 3.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5