MakeItFrom.com
Menu (ESC)

R30075 Cobalt vs. S30601 Stainless Steel

R30075 cobalt belongs to the cobalt alloys classification, while S30601 stainless steel belongs to the iron alloys. There are 24 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 R30075 cobalt and the bottom bar is S30601 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210 to 250
190
Elongation at Break, % 12
37
Fatigue Strength, MPa 250 to 840
250
Poisson's Ratio 0.29
0.28
Reduction in Area, % 20
56
Shear Modulus, GPa 82 to 98
75
Tensile Strength: Ultimate (UTS), MPa 780 to 1280
660
Tensile Strength: Yield (Proof), MPa 480 to 840
300

Thermal Properties

Latent Heat of Fusion, J/g 320
370
Melting Completion (Liquidus), °C 1360
1360
Melting Onset (Solidus), °C 1290
1310
Specific Heat Capacity, J/kg-K 450
500
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Density, g/cm3 8.4
7.6
Embodied Carbon, kg CO2/kg material 8.1
3.9
Embodied Energy, MJ/kg 110
55
Embodied Water, L/kg 530
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 140
200
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1410
230
Stiffness to Weight: Axial, points 14 to 17
14
Stiffness to Weight: Bending, points 24 to 25
25
Strength to Weight: Axial, points 26 to 42
24
Strength to Weight: Bending, points 22 to 31
22
Thermal Shock Resistance, points 21 to 29
16

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.35
0 to 0.015
Chromium (Cr), % 27 to 30
17 to 18
Cobalt (Co), % 58.7 to 68
0
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 0 to 0.75
56.9 to 60.5
Manganese (Mn), % 0 to 1.0
0.5 to 0.8
Molybdenum (Mo), % 5.0 to 7.0
0 to 0.2
Nickel (Ni), % 0 to 0.5
17 to 18
Nitrogen (N), % 0 to 0.25
0 to 0.050
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 1.0
5.0 to 5.6
Sulfur (S), % 0 to 0.010
0 to 0.013
Titanium (Ti), % 0 to 0.1
0
Tungsten (W), % 0 to 0.2
0