MakeItFrom.com
Menu (ESC)

R30605 Cobalt vs. R31537 Cobalt

Both R30605 cobalt and R31537 cobalt are cobalt alloys. They have 73% of their average alloy composition in common. There are 25 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 R30605 cobalt and the bottom bar is R31537 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Elongation at Break, % 34
14 to 23
Fatigue Strength, MPa 260 to 590
310 to 480
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
87
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
1000 to 1340
Tensile Strength: Yield (Proof), MPa 470 to 1600
590 to 940

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Melting Completion (Liquidus), °C 1410
1360
Melting Onset (Solidus), °C 1330
1290
Specific Heat Capacity, J/kg-K 410
450
Thermal Conductivity, W/m-K 9.6
13
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.1

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.4
Embodied Carbon, kg CO2/kg material 9.8
8.1
Embodied Energy, MJ/kg 140
110
Embodied Water, L/kg 450
530

Common Calculations

Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 33 to 55
33 to 44
Strength to Weight: Bending, points 25 to 36
26 to 32
Thermal Diffusivity, mm2/s 2.5
3.4
Thermal Shock Resistance, points 31 to 52
24 to 32

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.14
Chromium (Cr), % 19 to 21
26 to 30
Cobalt (Co), % 46.4 to 57
58.9 to 69
Iron (Fe), % 0 to 3.0
0 to 0.75
Manganese (Mn), % 1.0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 9.0 to 11
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 14 to 16
0

Comparable Variants