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R30003 Cobalt vs. R60704 Alloy

R30003 cobalt belongs to the cobalt alloys classification, while R60704 alloy belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is R30003 cobalt and the bottom bar is R60704 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
97
Elongation at Break, % 10 to 73
16
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 83
36
Tensile Strength: Ultimate (UTS), MPa 970 to 1720
470
Tensile Strength: Yield (Proof), MPa 510 to 1090
270

Thermal Properties

Latent Heat of Fusion, J/g 310
240
Specific Heat Capacity, J/kg-K 450
270
Thermal Conductivity, W/m-K 13
22
Thermal Expansion, µm/m-K 13
6.0

Otherwise Unclassified Properties

Density, g/cm3 8.4
6.7
Embodied Water, L/kg 400
460

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 600 to 2790
370
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 32 to 57
20
Strength to Weight: Bending, points 26 to 38
20
Thermal Diffusivity, mm2/s 3.3
12
Thermal Shock Resistance, points 26 to 45
58

Alloy Composition

Boron (B), % 0 to 0.1
0
Carbon (C), % 0 to 0.15
0 to 0.050
Chromium (Cr), % 19 to 21
0.2 to 0.4
Cobalt (Co), % 39 to 41
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 10 to 20.5
0.2 to 0.4
Manganese (Mn), % 1.5 to 2.5
0
Molybdenum (Mo), % 6.0 to 8.0
0
Nickel (Ni), % 14 to 16
0
Nitrogen (N), % 0
0 to 0.025
Oxygen (O), % 0
0 to 0.18
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 1.2
0
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
1.0 to 2.0
Zirconium (Zr), % 0
93 to 98.8