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R30001 Cobalt vs. R30003 Cobalt

Both R30001 cobalt and R30003 cobalt are cobalt alloys. They have 64% of their average alloy composition in common. There are 23 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 R30001 cobalt and the bottom bar is R30003 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
210
Elongation at Break, % 1.0
10 to 73
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 86
83
Tensile Strength: Ultimate (UTS), MPa 620
970 to 1720

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Melting Completion (Liquidus), °C 1530
1400
Melting Onset (Solidus), °C 1260
1440
Specific Heat Capacity, J/kg-K 430
450
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.1

Otherwise Unclassified Properties

Density, g/cm3 9.0
8.4
Embodied Carbon, kg CO2/kg material 8.9
8.0
Embodied Energy, MJ/kg 130
110
Embodied Water, L/kg 460
400

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 19
32 to 57
Strength to Weight: Bending, points 18
26 to 38
Thermal Diffusivity, mm2/s 3.7
3.3
Thermal Shock Resistance, points 19
26 to 45

Alloy Composition

Boron (B), % 0
0 to 0.1
Carbon (C), % 2.0 to 3.0
0 to 0.15
Chromium (Cr), % 28 to 32
19 to 21
Cobalt (Co), % 43 to 59
39 to 41
Iron (Fe), % 0 to 3.0
10 to 20.5
Manganese (Mn), % 0
1.5 to 2.5
Molybdenum (Mo), % 0 to 1.0
6.0 to 8.0
Nickel (Ni), % 0 to 3.0
14 to 16
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 2.0
0 to 1.2
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 11 to 13
0