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R30605 Cobalt vs. AWS BNi-11

R30605 cobalt belongs to the cobalt alloys classification, while AWS BNi-11 belongs to the nickel alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 18 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is R30605 cobalt and the bottom bar is AWS BNi-11.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 81
74
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
600

Thermal Properties

Latent Heat of Fusion, J/g 290
340
Melting Completion (Liquidus), °C 1410
1100
Melting Onset (Solidus), °C 1330
970
Specific Heat Capacity, J/kg-K 410
450
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Density, g/cm3 9.6
9.1
Embodied Carbon, kg CO2/kg material 9.8
11
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 450
230

Common Calculations

Stiffness to Weight: Axial, points 12
12
Stiffness to Weight: Bending, points 21
21
Strength to Weight: Axial, points 33 to 55
18
Strength to Weight: Bending, points 25 to 36
17
Thermal Shock Resistance, points 31 to 52
20

Alloy Composition


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Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
2.2 to 3.1
Carbon (C), % 0.050 to 0.15
0.3 to 0.5
Chromium (Cr), % 19 to 21
9.0 to 11.8
Cobalt (Co), % 46.4 to 57
0 to 0.1
Iron (Fe), % 0 to 3.0
2.5 to 4.0
Manganese (Mn), % 1.0 to 2.0
0
Nickel (Ni), % 9.0 to 11
62.9 to 71.2
Phosphorus (P), % 0 to 0.040
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.4
3.4 to 4.3
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Tungsten (W), % 14 to 16
11.5 to 12.8
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5