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G-CoCr28 Cobalt vs. EN 1.1104 Steel

G-CoCr28 cobalt belongs to the cobalt alloys classification, while EN 1.1104 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 1.1104 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 6.7
27
Fatigue Strength, MPa 130
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 83
73
Tensile Strength: Ultimate (UTS), MPa 560
440
Tensile Strength: Yield (Proof), MPa 260
280

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1200
400
Melting Completion (Liquidus), °C 1330
1460
Melting Onset (Solidus), °C 1270
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 8.5
49
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 100
2.3
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.2
1.5
Embodied Energy, MJ/kg 84
20
Embodied Water, L/kg 440
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
100
Resilience: Unit (Modulus of Resilience), kJ/m3 160
200
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
15
Strength to Weight: Bending, points 19
16
Thermal Diffusivity, mm2/s 2.2
13
Thermal Shock Resistance, points 14
14

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.024
Carbon (C), % 0.050 to 0.25
0 to 0.16
Chromium (Cr), % 27 to 30
0 to 0.3
Cobalt (Co), % 48 to 52
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 9.7 to 24.5
96.6 to 99.38
Manganese (Mn), % 0 to 1.5
0.6 to 1.5
Molybdenum (Mo), % 0 to 0.5
0 to 0.080
Nickel (Ni), % 0 to 4.0
0 to 0.5
Niobium (Nb), % 0 to 0.5
0 to 0.050
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0.5 to 1.5
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.0050
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.050