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AWS BNi-5 vs. R30035 Cobalt

AWS BNi-5 belongs to the nickel alloys classification, while R30035 cobalt belongs to the cobalt alloys. They have 54% 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-5 and the bottom bar is R30035 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220 to 230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
84 to 89
Tensile Strength: Ultimate (UTS), MPa 470
900 to 1900

Thermal Properties

Latent Heat of Fusion, J/g 470
320
Melting Completion (Liquidus), °C 1140
1440
Melting Onset (Solidus), °C 1080
1320
Specific Heat Capacity, J/kg-K 510
440
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 55
100
Density, g/cm3 7.7
8.7
Embodied Carbon, kg CO2/kg material 8.9
10
Embodied Energy, MJ/kg 130
140
Embodied Water, L/kg 260
410

Common Calculations

Stiffness to Weight: Axial, points 13
14 to 15
Stiffness to Weight: Bending, points 25
23 to 24
Strength to Weight: Axial, points 17
29 to 61
Strength to Weight: Bending, points 17
24 to 39
Thermal Shock Resistance, points 15
23 to 46

Alloy Composition


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Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0 to 0.030
0 to 0.015
Carbon (C), % 0 to 0.060
0 to 0.025
Chromium (Cr), % 18.5 to 19.5
19 to 21
Cobalt (Co), % 0 to 0.1
29.1 to 39
Iron (Fe), % 0
0 to 1.0
Manganese (Mn), % 0
0 to 0.15
Molybdenum (Mo), % 0
9.0 to 10.5
Nickel (Ni), % 69.1 to 71.8
33 to 37
Phosphorus (P), % 0 to 0.020
0 to 0.015
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 9.8 to 10.5
0 to 0.15
Sulfur (S), % 0 to 0.020
0 to 0.010
Titanium (Ti), % 0 to 0.050
0 to 1.0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0