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G-CoCr28 Cobalt vs. EN 1.0314 Steel

G-CoCr28 cobalt belongs to the cobalt alloys classification, while EN 1.0314 steel belongs to the iron alloys. 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 G-CoCr28 cobalt and the bottom bar is EN 1.0314 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 6.7
24 to 25
Fatigue Strength, MPa 130
140 to 220
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 83
73
Tensile Strength: Ultimate (UTS), MPa 560
320 to 400
Tensile Strength: Yield (Proof), MPa 260
190 to 310

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1200
400
Melting Completion (Liquidus), °C 1330
1470
Melting Onset (Solidus), °C 1270
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 8.5
53
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 100
1.8
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 6.2
1.4
Embodied Energy, MJ/kg 84
18
Embodied Water, L/kg 440
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
68 to 87
Resilience: Unit (Modulus of Resilience), kJ/m3 160
95 to 250
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
11 to 14
Strength to Weight: Bending, points 19
13 to 15
Thermal Diffusivity, mm2/s 2.2
14
Thermal Shock Resistance, points 14
10 to 13

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Carbon (C), % 0.050 to 0.25
0 to 0.030
Chromium (Cr), % 27 to 30
0
Cobalt (Co), % 48 to 52
0
Iron (Fe), % 9.7 to 24.5
99.365 to 99.78
Manganese (Mn), % 0 to 1.5
0.2 to 0.4
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 4.0
0
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0.5 to 1.5
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.025