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G-CoCr28 Cobalt vs. AISI 310S Stainless Steel

G-CoCr28 cobalt belongs to the cobalt alloys classification, while AISI 310S stainless steel belongs to the iron alloys. They have 46% of their average alloy composition in common. There are 27 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 G-CoCr28 cobalt and the bottom bar is AISI 310S stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 6.7
34 to 44
Fatigue Strength, MPa 130
250 to 280
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 83
79
Tensile Strength: Ultimate (UTS), MPa 560
600 to 710
Tensile Strength: Yield (Proof), MPa 260
270 to 350

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Maximum Temperature: Mechanical, °C 1200
1100
Melting Completion (Liquidus), °C 1330
1450
Melting Onset (Solidus), °C 1270
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 8.5
16
Thermal Expansion, µm/m-K 14
16

Otherwise Unclassified Properties

Base Metal Price, % relative 100
25
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 6.2
4.3
Embodied Energy, MJ/kg 84
61
Embodied Water, L/kg 440
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
200 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 160
190 to 310
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
21 to 25
Strength to Weight: Bending, points 19
20 to 22
Thermal Diffusivity, mm2/s 2.2
4.1
Thermal Shock Resistance, points 14
14 to 16

Alloy Composition

Carbon (C), % 0.050 to 0.25
0 to 0.080
Chromium (Cr), % 27 to 30
24 to 26
Cobalt (Co), % 48 to 52
0
Iron (Fe), % 9.7 to 24.5
48.3 to 57
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 4.0
19 to 22
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0.5 to 1.5
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030