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R30605 Cobalt vs. K93500 Alloy

R30605 cobalt belongs to the cobalt alloys classification, while K93500 alloy belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is R30605 cobalt and the bottom bar is K93500 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 81
72
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
490 to 810

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1330
1380
Specific Heat Capacity, J/kg-K 410
460
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.2
Embodied Carbon, kg CO2/kg material 9.8
4.7
Embodied Energy, MJ/kg 140
65
Embodied Water, L/kg 450
130

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 21
23
Strength to Weight: Axial, points 33 to 55
17 to 27
Strength to Weight: Bending, points 25 to 36
17 to 23
Thermal Shock Resistance, points 31 to 52
15 to 25

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0.050 to 0.15
0 to 0.050
Chromium (Cr), % 19 to 21
0 to 0.25
Cobalt (Co), % 46.4 to 57
5.0
Iron (Fe), % 0 to 3.0
61.4 to 63
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 1.0 to 2.0
0 to 0.6
Nickel (Ni), % 9.0 to 11
32
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 0.4
0 to 0.25
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 14 to 16
0
Zirconium (Zr), % 0
0 to 0.1

Comparable Variants