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R30008 Cobalt vs. AWS ERNiCrCoMo-1

R30008 cobalt belongs to the cobalt alloys classification, while AWS ERNiCrCoMo-1 belongs to the nickel alloys. They have 59% 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 ERNiCrCoMo-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 1.1 to 73
28
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 83
81
Tensile Strength: Ultimate (UTS), MPa 950 to 1700
710

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Melting Completion (Liquidus), °C 1400
1420
Melting Onset (Solidus), °C 1330
1370
Specific Heat Capacity, J/kg-K 450
450
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 95
75
Density, g/cm3 8.4
8.5
Embodied Carbon, kg CO2/kg material 8.1
10
Embodied Energy, MJ/kg 110
140
Embodied Water, L/kg 400
350

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 31 to 56
23
Strength to Weight: Bending, points 25 to 37
21
Thermal Shock Resistance, points 25 to 44
19

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.5
Boron (B), % 0 to 0.0010
0
Carbon (C), % 0 to 0.15
0.050 to 0.15
Chromium (Cr), % 18.5 to 21.5
20 to 24
Cobalt (Co), % 39 to 42
10 to 15
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 7.6 to 20
0 to 3.0
Manganese (Mn), % 1.0 to 2.0
0 to 1.0
Molybdenum (Mo), % 6.5 to 7.5
8.0 to 10
Nickel (Ni), % 15 to 18
42.7 to 61.2
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 1.2
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0 to 0.6
Residuals, % 0
0 to 0.5