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G-CoCr28 Cobalt vs. R30001 Cobalt

Both G-CoCr28 cobalt and R30001 cobalt are cobalt alloys. They have 83% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is G-CoCr28 cobalt and the bottom bar is R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Elongation at Break, % 6.7
1.0
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 83
86
Tensile Strength: Ultimate (UTS), MPa 560
620

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Melting Completion (Liquidus), °C 1330
1530
Melting Onset (Solidus), °C 1270
1260
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 8.5
15
Thermal Expansion, µm/m-K 14
11

Otherwise Unclassified Properties

Density, g/cm3 8.1
9.0
Embodied Carbon, kg CO2/kg material 6.2
8.9
Embodied Energy, MJ/kg 84
130
Embodied Water, L/kg 440
460

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 19
19
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 2.2
3.7
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0.050 to 0.25
2.0 to 3.0
Chromium (Cr), % 27 to 30
28 to 32
Cobalt (Co), % 48 to 52
43 to 59
Iron (Fe), % 9.7 to 24.5
0 to 3.0
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0 to 0.5
0 to 1.0
Nickel (Ni), % 0 to 4.0
0 to 3.0
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.5 to 1.5
0 to 2.0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0
11 to 13