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R30008 Cobalt vs. AWS ERNiCrFe-11

R30008 cobalt belongs to the cobalt alloys classification, while AWS ERNiCrFe-11 belongs to the nickel alloys. They have 51% of their average alloy composition in common. There are 20 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 R30008 cobalt and the bottom bar is AWS ERNiCrFe-11.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 1.1 to 73
47
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 83
76
Tensile Strength: Ultimate (UTS), MPa 950 to 1700
740

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1400
1360
Melting Onset (Solidus), °C 1330
1310
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 95
49
Density, g/cm3 8.4
8.2
Embodied Carbon, kg CO2/kg material 8.1
8.0
Embodied Energy, MJ/kg 110
110
Embodied Water, L/kg 400
280

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 31 to 56
25
Strength to Weight: Bending, points 25 to 37
22
Thermal Shock Resistance, points 25 to 44
20

Alloy Composition

Aluminum (Al), % 0
1.0 to 1.7
Boron (B), % 0 to 0.0010
0
Carbon (C), % 0 to 0.15
0 to 0.1
Chromium (Cr), % 18.5 to 21.5
21 to 25
Cobalt (Co), % 39 to 42
0
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 7.6 to 20
7.2 to 20
Manganese (Mn), % 1.0 to 2.0
0 to 1.0
Molybdenum (Mo), % 6.5 to 7.5
0
Nickel (Ni), % 15 to 18
58 to 63
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 1.2
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Residuals, % 0
0 to 0.5