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Grade CW6M Nickel vs. AWS BNi-2

Both grade CW6M nickel and AWS BNi-2 are nickel alloys. They have 70% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade CW6M nickel and the bottom bar is AWS BNi-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
180
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 84
68
Tensile Strength: Ultimate (UTS), MPa 560
440

Thermal Properties

Latent Heat of Fusion, J/g 330
360
Melting Completion (Liquidus), °C 1530
1000
Melting Onset (Solidus), °C 1470
970
Specific Heat Capacity, J/kg-K 430
490
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 65
55
Density, g/cm3 8.8
8.2
Embodied Carbon, kg CO2/kg material 13
9.3
Embodied Energy, MJ/kg 170
130
Embodied Water, L/kg 300
230

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 18
15
Strength to Weight: Bending, points 17
16
Thermal Shock Resistance, points 16
16

Alloy Composition


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Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
2.8 to 3.5
Carbon (C), % 0 to 0.070
0 to 0.060
Chromium (Cr), % 17 to 20
6.0 to 8.0
Cobalt (Co), % 0
0 to 0.1
Iron (Fe), % 0 to 3.0
2.5 to 3.5
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 17 to 20
0
Nickel (Ni), % 54.9 to 66
79.1 to 84.8
Phosphorus (P), % 0 to 0.040
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 1.0
4.0 to 5.0
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