Annealed R30075 Cobalt vs. Annealed AISI W1
Annealed R30075 cobalt belongs to the cobalt alloys classification, while annealed AISI W1 belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is annealed R30075 cobalt and the bottom bar is annealed AISI W1.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 210 | |
190 |
Elongation at Break, % | 12 | |
23 |
Fatigue Strength, MPa | 260 | |
240 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 82 | |
72 |
Tensile Strength: Ultimate (UTS), MPa | 780 | |
590 |
Tensile Strength: Yield (Proof), MPa | 480 | |
330 |
Thermal Properties
Latent Heat of Fusion, J/g | 320 | |
250 |
Melting Completion (Liquidus), °C | 1360 | |
1450 |
Melting Onset (Solidus), °C | 1290 | |
1410 |
Specific Heat Capacity, J/kg-K | 450 | |
470 |
Thermal Conductivity, W/m-K | 13 | |
48 |
Thermal Expansion, µm/m-K | 12 | |
10 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.0 | |
7.1 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.1 | |
8.2 |
Otherwise Unclassified Properties
Density, g/cm3 | 8.4 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 8.1 | |
1.6 |
Embodied Energy, MJ/kg | 110 | |
21 |
Embodied Water, L/kg | 530 | |
47 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 84 | |
120 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 560 | |
290 |
Stiffness to Weight: Axial, points | 14 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 26 | |
21 |
Strength to Weight: Bending, points | 22 | |
20 |
Thermal Diffusivity, mm2/s | 3.5 | |
13 |
Thermal Shock Resistance, points | 21 | |
22 |
Alloy Composition
Aluminum (Al), % | 0 to 0.1 | |
0 |
Boron (B), % | 0 to 0.010 | |
0 |
Carbon (C), % | 0 to 0.35 | |
0.7 to 1.5 |
Chromium (Cr), % | 27 to 30 | |
0 to 0.15 |
Cobalt (Co), % | 58.7 to 68 | |
0 |
Copper (Cu), % | 0 | |
0 to 0.2 |
Iron (Fe), % | 0 to 0.75 | |
96.4 to 98.9 |
Manganese (Mn), % | 0 to 1.0 | |
0.35 to 0.73 |
Molybdenum (Mo), % | 5.0 to 7.0 | |
0 to 0.1 |
Nickel (Ni), % | 0 to 0.5 | |
0 to 0.2 |
Nitrogen (N), % | 0 to 0.25 | |
0 |
Phosphorus (P), % | 0 to 0.020 | |
0 to 0.025 |
Silicon (Si), % | 0 to 1.0 | |
0.1 to 0.4 |
Sulfur (S), % | 0 to 0.010 | |
0 to 0.025 |
Titanium (Ti), % | 0 to 0.1 | |
0 |
Tungsten (W), % | 0 to 0.2 | |
0 to 0.15 |
Vanadium (V), % | 0 | |
0 to 0.1 |