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R30006 Cobalt vs. R60804 Alloy

R30006 cobalt belongs to the cobalt alloys classification, while R60804 alloy belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R30006 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 85
36
Tensile Strength: Ultimate (UTS), MPa 900
430
Tensile Strength: Yield (Proof), MPa 540
270

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Specific Heat Capacity, J/kg-K 450
270
Thermal Conductivity, W/m-K 15
22
Thermal Expansion, µm/m-K 11
6.0

Otherwise Unclassified Properties

Density, g/cm3 8.6
6.5
Embodied Water, L/kg 500
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
85
Resilience: Unit (Modulus of Resilience), kJ/m3 670
380
Stiffness to Weight: Axial, points 14
8.3
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 29
18
Strength to Weight: Bending, points 24
19
Thermal Diffusivity, mm2/s 3.9
12
Thermal Shock Resistance, points 26
53

Alloy Composition


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Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 27 to 32
0.070 to 0.13
Cobalt (Co), % 48.6 to 68.1
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), % 4.0 to 6.0
0
Zirconium (Zr), % 0
97.8 to 98.6
Residuals, % 0
0 to 0.12