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EN 1.4110 Stainless Steel vs. G-CoCr28 Cobalt

EN 1.4110 stainless steel belongs to the iron alloys classification, while G-CoCr28 cobalt belongs to the cobalt alloys. They have a modest 33% 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 EN 1.4110 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, % 11 to 14
6.7
Fatigue Strength, MPa 250 to 730
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
83
Tensile Strength: Ultimate (UTS), MPa 770 to 1720
560
Tensile Strength: Yield (Proof), MPa 430 to 1330
260

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 790
1200
Melting Completion (Liquidus), °C 1440
1330
Melting Onset (Solidus), °C 1400
1270
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
8.5
Thermal Expansion, µm/m-K 11
14

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
100
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 2.3
6.2
Embodied Energy, MJ/kg 33
84
Embodied Water, L/kg 110
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 180
31
Resilience: Unit (Modulus of Resilience), kJ/m3 480 to 4550
160
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 62
19
Strength to Weight: Bending, points 24 to 41
19
Thermal Diffusivity, mm2/s 8.1
2.2
Thermal Shock Resistance, points 27 to 60
14

Alloy Composition

Carbon (C), % 0.48 to 0.6
0.050 to 0.25
Chromium (Cr), % 13 to 15
27 to 30
Cobalt (Co), % 0
48 to 52
Iron (Fe), % 81.4 to 86
9.7 to 24.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.5 to 0.8
0 to 0.5
Nickel (Ni), % 0
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 0.015
0 to 0.030
Vanadium (V), % 0 to 0.15
0