EN 1.4415 Stainless Steel vs. G-CoCr28 Cobalt
EN 1.4415 stainless steel belongs to the iron alloys classification, while G-CoCr28 cobalt belongs to the cobalt alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. 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 EN 1.4415 stainless steel and the bottom bar is G-CoCr28 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
210 |
Elongation at Break, % | 17 to 20 | |
6.7 |
Fatigue Strength, MPa | 470 to 510 | |
130 |
Poisson's Ratio | 0.28 | |
0.28 |
Shear Modulus, GPa | 77 | |
83 |
Tensile Strength: Ultimate (UTS), MPa | 830 to 930 | |
560 |
Tensile Strength: Yield (Proof), MPa | 730 to 840 | |
260 |
Thermal Properties
Latent Heat of Fusion, J/g | 280 | |
320 |
Maximum Temperature: Mechanical, °C | 790 | |
1200 |
Melting Completion (Liquidus), °C | 1460 | |
1330 |
Melting Onset (Solidus), °C | 1420 | |
1270 |
Specific Heat Capacity, J/kg-K | 470 | |
470 |
Thermal Conductivity, W/m-K | 19 | |
8.5 |
Thermal Expansion, µm/m-K | 9.9 | |
14 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 13 | |
100 |
Density, g/cm3 | 7.9 | |
8.1 |
Embodied Carbon, kg CO2/kg material | 3.6 | |
6.2 |
Embodied Energy, MJ/kg | 51 | |
84 |
Embodied Water, L/kg | 120 | |
440 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 150 to 160 | |
31 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 1350 to 1790 | |
160 |
Stiffness to Weight: Axial, points | 14 | |
15 |
Stiffness to Weight: Bending, points | 25 | |
24 |
Strength to Weight: Axial, points | 29 to 33 | |
19 |
Strength to Weight: Bending, points | 25 to 27 | |
19 |
Thermal Diffusivity, mm2/s | 5.1 | |
2.2 |
Thermal Shock Resistance, points | 30 to 34 | |
14 |
Alloy Composition
Carbon (C), % | 0 to 0.030 | |
0.050 to 0.25 |
Chromium (Cr), % | 11.5 to 13.5 | |
27 to 30 |
Cobalt (Co), % | 0 | |
48 to 52 |
Iron (Fe), % | 75.9 to 82.4 | |
9.7 to 24.5 |
Manganese (Mn), % | 0 to 0.5 | |
0 to 1.5 |
Molybdenum (Mo), % | 1.5 to 2.5 | |
0 to 0.5 |
Nickel (Ni), % | 4.5 to 6.5 | |
0 to 4.0 |
Niobium (Nb), % | 0 | |
0 to 0.5 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.040 |
Silicon (Si), % | 0 to 0.5 | |
0.5 to 1.5 |
Sulfur (S), % | 0 to 0.015 | |
0 to 0.030 |
Titanium (Ti), % | 0 to 0.010 | |
0 |
Vanadium (V), % | 0.1 to 0.5 | |
0 |