MakeItFrom.com
Menu (ESC)

S24000 Stainless Steel vs. R31538 Cobalt

S24000 stainless steel belongs to the iron alloys classification, while R31538 cobalt belongs to the cobalt alloys. There are 24 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is S24000 stainless steel and the bottom bar is R31538 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 39
13 to 23
Fatigue Strength, MPa 370
310 to 480
Poisson's Ratio 0.28
0.29
Reduction in Area, % 57
13 to 22
Shear Modulus, GPa 77
86
Tensile Strength: Ultimate (UTS), MPa 770
1020 to 1360
Tensile Strength: Yield (Proof), MPa 430
580 to 930

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Melting Completion (Liquidus), °C 1390
1360
Melting Onset (Solidus), °C 1350
1290
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Density, g/cm3 7.6
8.4
Embodied Carbon, kg CO2/kg material 2.7
8.1
Embodied Energy, MJ/kg 39
110
Embodied Water, L/kg 150
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
140 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 470
750 to 1920
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
34 to 45
Strength to Weight: Bending, points 24
27 to 32
Thermal Shock Resistance, points 16
25 to 33

Alloy Composition

Carbon (C), % 0 to 0.080
0.15 to 0.35
Chromium (Cr), % 17 to 19
26 to 30
Cobalt (Co), % 0
58.7 to 68.9
Iron (Fe), % 61.5 to 69
0 to 0.75
Manganese (Mn), % 11.5 to 14.5
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 2.3 to 3.7
0 to 1.0
Nitrogen (N), % 0.2 to 0.4
0 to 0.25
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0