MakeItFrom.com
Menu (ESC)

S66286 Stainless Steel vs. G-CoCr28 Cobalt

S66286 stainless steel belongs to the iron alloys classification, while G-CoCr28 cobalt belongs to the cobalt alloys. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S66286 stainless steel and the bottom bar is G-CoCr28 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 17 to 40
6.7
Fatigue Strength, MPa 240 to 410
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
83
Tensile Strength: Ultimate (UTS), MPa 620 to 1020
560
Tensile Strength: Yield (Proof), MPa 280 to 670
260

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Mechanical, °C 920
1200
Melting Completion (Liquidus), °C 1430
1330
Melting Onset (Solidus), °C 1370
1270
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
8.5
Thermal Expansion, µm/m-K 17
14

Otherwise Unclassified Properties

Base Metal Price, % relative 26
100
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 6.0
6.2
Embodied Energy, MJ/kg 87
84
Embodied Water, L/kg 170
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 200
31
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 1150
160
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 36
19
Strength to Weight: Bending, points 20 to 28
19
Thermal Diffusivity, mm2/s 4.0
2.2
Thermal Shock Resistance, points 13 to 22
14

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
0.050 to 0.25
Chromium (Cr), % 13.5 to 16
27 to 30
Cobalt (Co), % 0
48 to 52
Iron (Fe), % 49.1 to 59.5
9.7 to 24.5
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 1.0 to 1.5
0 to 0.5
Nickel (Ni), % 24 to 27
0 to 4.0
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0.5 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 1.9 to 2.4
0
Vanadium (V), % 0.1 to 0.5
0