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K93603 Alloy vs. R30008 Cobalt

K93603 alloy belongs to the iron alloys classification, while R30008 cobalt belongs to the cobalt alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is K93603 alloy and the bottom bar is R30008 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 72
83
Tensile Strength: Ultimate (UTS), MPa 490 to 810
950 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1380
1330
Specific Heat Capacity, J/kg-K 460
450
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
95
Density, g/cm3 8.2
8.4
Embodied Carbon, kg CO2/kg material 4.8
8.1
Embodied Energy, MJ/kg 66
110
Embodied Water, L/kg 120
400

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 17 to 27
31 to 56
Strength to Weight: Bending, points 17 to 24
25 to 37
Thermal Shock Resistance, points 15 to 25
25 to 44

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Boron (B), % 0
0 to 0.0010
Carbon (C), % 0 to 0.050
0 to 0.15
Chromium (Cr), % 0 to 0.25
18.5 to 21.5
Cobalt (Co), % 0 to 0.5
39 to 42
Iron (Fe), % 61.8 to 64
7.6 to 20
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.6
1.0 to 2.0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 36
15 to 18
Phosphorus (P), % 0 to 0.015
0 to 0.015
Silicon (Si), % 0 to 0.4
0 to 1.2
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0 to 0.1
0
Zirconium (Zr), % 0 to 0.1
0

Comparable Variants