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G-CoCr28 Cobalt vs. AWS ER80S-Ni1

G-CoCr28 cobalt belongs to the cobalt alloys classification, while AWS ER80S-Ni1 belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is G-CoCr28 cobalt and the bottom bar is AWS ER80S-Ni1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 6.7
27
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 83
72
Tensile Strength: Ultimate (UTS), MPa 560
630
Tensile Strength: Yield (Proof), MPa 260
530

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1330
1450
Melting Onset (Solidus), °C 1270
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 8.5
41
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Base Metal Price, % relative 100
2.7
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.2
1.6
Embodied Energy, MJ/kg 84
21
Embodied Water, L/kg 440
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
160
Resilience: Unit (Modulus of Resilience), kJ/m3 160
740
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
22
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 2.2
11
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0.050 to 0.25
0 to 0.12
Chromium (Cr), % 27 to 30
0 to 0.15
Cobalt (Co), % 48 to 52
0
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 9.7 to 24.5
95.3 to 98.8
Manganese (Mn), % 0 to 1.5
0 to 1.3
Molybdenum (Mo), % 0 to 0.5
0 to 0.35
Nickel (Ni), % 0 to 4.0
0.8 to 1.1
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0.5 to 1.5
0.4 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0
0 to 0.050
Residuals, % 0
0 to 0.5