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R30075 Cobalt vs. AWS BNi-6

R30075 cobalt belongs to the cobalt alloys classification, while AWS BNi-6 belongs to the nickel alloys. There are 18 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is R30075 cobalt and the bottom bar is AWS BNi-6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210 to 250
160
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 82 to 98
62
Tensile Strength: Ultimate (UTS), MPa 780 to 1280
450

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1360
880
Melting Onset (Solidus), °C 1290
880
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
9.8

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.2
Embodied Carbon, kg CO2/kg material 8.1
9.4
Embodied Energy, MJ/kg 110
130
Embodied Water, L/kg 530
210

Common Calculations

Stiffness to Weight: Axial, points 14 to 17
11
Stiffness to Weight: Bending, points 24 to 25
22
Strength to Weight: Axial, points 26 to 42
15
Strength to Weight: Bending, points 22 to 31
16
Thermal Shock Resistance, points 21 to 29
20

Alloy Composition

Aluminum (Al), % 0 to 0.1
0 to 0.050
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.35
0 to 0.060
Chromium (Cr), % 27 to 30
0
Cobalt (Co), % 58.7 to 68
0 to 0.1
Iron (Fe), % 0 to 0.75
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 0.5
87.2 to 90
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.020
10 to 12
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0 to 0.1
0 to 0.050
Tungsten (W), % 0 to 0.2
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5