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R30008 Cobalt vs. AWS ENi-1

R30008 cobalt belongs to the cobalt alloys classification, while AWS ENi-1 belongs to the nickel alloys. 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 ENi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
180
Elongation at Break, % 1.1 to 73
22
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 83
69
Tensile Strength: Ultimate (UTS), MPa 950 to 1700
470

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Melting Completion (Liquidus), °C 1400
1360
Melting Onset (Solidus), °C 1330
1310
Specific Heat Capacity, J/kg-K 450
450
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 95
60
Density, g/cm3 8.4
8.7
Embodied Carbon, kg CO2/kg material 8.1
11
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 400
230

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 31 to 56
15
Strength to Weight: Bending, points 25 to 37
15
Thermal Shock Resistance, points 25 to 44
17

Alloy Composition

Aluminum (Al), % 0
0 to 1.0
Boron (B), % 0 to 0.0010
0
Carbon (C), % 0 to 0.15
0 to 0.1
Chromium (Cr), % 18.5 to 21.5
0
Cobalt (Co), % 39 to 42
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 7.6 to 20
0 to 0.75
Manganese (Mn), % 1.0 to 2.0
0 to 0.75
Molybdenum (Mo), % 6.5 to 7.5
0
Nickel (Ni), % 15 to 18
92 to 99
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 1.2
0 to 1.3
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0
1.0 to 4.0
Residuals, % 0
0 to 0.5