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Grade M30C Nickel vs. G-CoCr28 Cobalt

Grade M30C nickel belongs to the nickel alloys classification, while G-CoCr28 cobalt belongs to the cobalt alloys. There are 27 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade M30C nickel and the bottom bar is G-CoCr28 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
210
Elongation at Break, % 29
6.7
Fatigue Strength, MPa 170
130
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
83
Tensile Strength: Ultimate (UTS), MPa 510
560
Tensile Strength: Yield (Proof), MPa 250
260

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 900
1200
Melting Completion (Liquidus), °C 1290
1330
Melting Onset (Solidus), °C 1240
1270
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 22
8.5
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 60
100
Density, g/cm3 8.8
8.1
Embodied Carbon, kg CO2/kg material 9.5
6.2
Embodied Energy, MJ/kg 140
84
Embodied Water, L/kg 250
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
31
Resilience: Unit (Modulus of Resilience), kJ/m3 200
160
Stiffness to Weight: Axial, points 10
15
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 16
19
Strength to Weight: Bending, points 16
19
Thermal Diffusivity, mm2/s 5.7
2.2
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0 to 0.3
0.050 to 0.25
Chromium (Cr), % 0
27 to 30
Cobalt (Co), % 0
48 to 52
Copper (Cu), % 26 to 33
0
Iron (Fe), % 0 to 3.5
9.7 to 24.5
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 56.6 to 72
0 to 4.0
Niobium (Nb), % 1.0 to 3.0
0 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 1.0 to 2.0
0.5 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030