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R30001 Cobalt vs. R60804 Alloy

R30001 cobalt belongs to the cobalt alloys classification, while R60804 alloy belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is R30001 cobalt and the bottom bar is R60804 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
98
Elongation at Break, % 1.0
22
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 86
36
Tensile Strength: Ultimate (UTS), MPa 620
430

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Specific Heat Capacity, J/kg-K 430
270
Thermal Conductivity, W/m-K 15
22
Thermal Expansion, µm/m-K 11
6.0

Otherwise Unclassified Properties

Density, g/cm3 9.0
6.5
Embodied Water, L/kg 460
290

Common Calculations

Stiffness to Weight: Axial, points 14
8.3
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 18
19
Thermal Diffusivity, mm2/s 3.7
12
Thermal Shock Resistance, points 19
53

Alloy Composition

Carbon (C), % 2.0 to 3.0
0
Chromium (Cr), % 28 to 32
0.070 to 0.13
Cobalt (Co), % 43 to 59
0
Iron (Fe), % 0 to 3.0
0.18 to 0.24
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0
Silicon (Si), % 0 to 2.0
0
Tin (Sn), % 0
1.2 to 1.7
Tungsten (W), % 11 to 13
0
Zirconium (Zr), % 0
97.8 to 98.6
Residuals, % 0
0 to 0.12