G-CoCr28 Cobalt vs. EN 1.4869 Casting Alloy
G-CoCr28 cobalt belongs to the cobalt alloys classification, while EN 1.4869 casting alloy belongs to the nickel alloys. They have 61% of their average alloy composition in common.
For each property being compared, the top bar is G-CoCr28 cobalt and the bottom bar is EN 1.4869 casting alloy.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 210 | |
210 |
Elongation at Break, % | 6.7 | |
5.7 |
Fatigue Strength, MPa | 130 | |
130 |
Poisson's Ratio | 0.28 | |
0.28 |
Shear Modulus, GPa | 83 | |
80 |
Tensile Strength: Ultimate (UTS), MPa | 560 | |
540 |
Tensile Strength: Yield (Proof), MPa | 260 | |
310 |
Thermal Properties
Latent Heat of Fusion, J/g | 320 | |
330 |
Maximum Temperature: Mechanical, °C | 1200 | |
1200 |
Melting Completion (Liquidus), °C | 1330 | |
1450 |
Melting Onset (Solidus), °C | 1270 | |
1390 |
Specific Heat Capacity, J/kg-K | 470 | |
460 |
Thermal Conductivity, W/m-K | 8.5 | |
10 |
Thermal Expansion, µm/m-K | 14 | |
13 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 100 | |
70 |
Density, g/cm3 | 8.1 | |
8.5 |
Embodied Carbon, kg CO2/kg material | 6.2 | |
7.7 |
Embodied Energy, MJ/kg | 84 | |
110 |
Embodied Water, L/kg | 440 | |
300 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 | |
26 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 | |
230 |
Stiffness to Weight: Axial, points | 15 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
23 |
Strength to Weight: Axial, points | 19 | |
18 |
Strength to Weight: Bending, points | 19 | |
17 |
Thermal Diffusivity, mm2/s | 2.2 | |
2.6 |
Thermal Shock Resistance, points | 14 | |
14 |
Alloy Composition
Carbon (C), % | 0.050 to 0.25 | |
0.45 to 0.55 |
Chromium (Cr), % | 27 to 30 | |
24 to 26 |
Cobalt (Co), % | 48 to 52 | |
14 to 16 |
Iron (Fe), % | 9.7 to 24.5 | |
11.4 to 23.6 |
Manganese (Mn), % | 0 to 1.5 | |
0 to 1.0 |
Molybdenum (Mo), % | 0 to 0.5 | |
0 |
Nickel (Ni), % | 0 to 4.0 | |
33 to 37 |
Niobium (Nb), % | 0 to 0.5 | |
0 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.040 |
Silicon (Si), % | 0.5 to 1.5 | |
1.0 to 2.0 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.030 |
Tungsten (W), % | 0 | |
4.0 to 6.0 |