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G-CoCr28 Cobalt vs. EN 1.3553 Steel

G-CoCr28 cobalt belongs to the cobalt alloys classification, while EN 1.3553 steel belongs to the iron alloys. They have a modest 22% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is G-CoCr28 cobalt and the bottom bar is EN 1.3553 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 83
77
Tensile Strength: Ultimate (UTS), MPa 560
720

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Maximum Temperature: Mechanical, °C 1200
540
Melting Completion (Liquidus), °C 1330
1620
Melting Onset (Solidus), °C 1270
1570
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 8.5
24
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 100
24
Density, g/cm3 8.1
8.4
Embodied Carbon, kg CO2/kg material 6.2
8.5
Embodied Energy, MJ/kg 84
130
Embodied Water, L/kg 440
96

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 2.2
6.4
Thermal Shock Resistance, points 14
21

Alloy Composition

Carbon (C), % 0.050 to 0.25
0.78 to 0.86
Chromium (Cr), % 27 to 30
3.9 to 4.3
Cobalt (Co), % 48 to 52
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 9.7 to 24.5
80.7 to 83.7
Manganese (Mn), % 0 to 1.5
0 to 0.4
Molybdenum (Mo), % 0 to 0.5
4.7 to 5.2
Nickel (Ni), % 0 to 4.0
0
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0.5 to 1.5
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0
6.0 to 6.7
Vanadium (V), % 0
1.7 to 2.0