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EN 2.4964 Cobalt vs. AWS E3155

EN 2.4964 cobalt belongs to the cobalt alloys classification, while AWS E3155 belongs to the iron alloys. They have 55% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is AWS E3155.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
210
Elongation at Break, % 40
23
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 86
81
Tensile Strength: Ultimate (UTS), MPa 960
770

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Melting Completion (Liquidus), °C 1630
1460
Melting Onset (Solidus), °C 1550
1410
Specific Heat Capacity, J/kg-K 400
450
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.4
Embodied Carbon, kg CO2/kg material 9.8
7.7
Embodied Energy, MJ/kg 140
110
Embodied Water, L/kg 450
300

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 28
26
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 3.9
3.3
Thermal Shock Resistance, points 25
20

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.1
Chromium (Cr), % 19 to 21
20 to 22.5
Cobalt (Co), % 46.4 to 58
18.5 to 21
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 0 to 3.0
23.3 to 36.3
Manganese (Mn), % 0 to 2.0
1.0 to 2.5
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 9.0 to 11
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 14 to 16
2.0 to 3.0