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G-CoCr28 Cobalt vs. Grade TDSiCrV Steel

G-CoCr28 cobalt belongs to the cobalt alloys classification, while grade TDSiCrV steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 83
80
Tensile Strength: Ultimate (UTS), MPa 560
2100

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Mechanical, °C 1200
420
Melting Completion (Liquidus), °C 1330
1440
Melting Onset (Solidus), °C 1270
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 8.5
47
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Base Metal Price, % relative 100
2.3
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 6.2
1.9
Embodied Energy, MJ/kg 84
26
Embodied Water, L/kg 440
50

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
75
Strength to Weight: Bending, points 19
47
Thermal Diffusivity, mm2/s 2.2
13
Thermal Shock Resistance, points 14
63

Alloy Composition

Carbon (C), % 0.050 to 0.25
0.5 to 0.7
Chromium (Cr), % 27 to 30
0.5 to 1.0
Cobalt (Co), % 48 to 52
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 9.7 to 24.5
96.1 to 97.8
Manganese (Mn), % 0 to 1.5
0.4 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 4.0
0
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0.5 to 1.5
1.2 to 1.7
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 0
0.1 to 0.25