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Grade M30C Nickel vs. R30008 Cobalt

Grade M30C nickel belongs to the nickel alloys classification, while R30008 cobalt belongs to the cobalt alloys. There are 23 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade M30C nickel and the bottom bar is R30008 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
210
Elongation at Break, % 29
1.1 to 73
Fatigue Strength, MPa 170
320 to 530
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 61
83
Tensile Strength: Ultimate (UTS), MPa 510
950 to 1700
Tensile Strength: Yield (Proof), MPa 250
500 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Melting Completion (Liquidus), °C 1290
1400
Melting Onset (Solidus), °C 1240
1330
Specific Heat Capacity, J/kg-K 430
450
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 60
95
Density, g/cm3 8.8
8.4
Embodied Carbon, kg CO2/kg material 9.5
8.1
Embodied Energy, MJ/kg 140
110
Embodied Water, L/kg 250
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 200
590 to 2720
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 16
31 to 56
Strength to Weight: Bending, points 16
25 to 37
Thermal Shock Resistance, points 18
25 to 44

Alloy Composition

Boron (B), % 0
0 to 0.0010
Carbon (C), % 0 to 0.3
0 to 0.15
Chromium (Cr), % 0
18.5 to 21.5
Cobalt (Co), % 0
39 to 42
Copper (Cu), % 26 to 33
0
Iron (Fe), % 0 to 3.5
7.6 to 20
Manganese (Mn), % 0 to 1.5
1.0 to 2.0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 56.6 to 72
15 to 18
Niobium (Nb), % 1.0 to 3.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 1.0 to 2.0
0 to 1.2
Sulfur (S), % 0 to 0.030
0 to 0.015