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AWS E316L vs. G-CoCr28 Cobalt

AWS E316L belongs to the iron alloys classification, while G-CoCr28 cobalt belongs to the cobalt alloys. They have a modest 39% 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 (8, in this case) are not shown.

For each property being compared, the top bar is AWS E316L and the bottom bar is G-CoCr28 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
6.7
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
83
Tensile Strength: Ultimate (UTS), MPa 550
560

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Melting Completion (Liquidus), °C 1440
1330
Melting Onset (Solidus), °C 1390
1270
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
8.5
Thermal Expansion, µm/m-K 14
14

Otherwise Unclassified Properties

Base Metal Price, % relative 20
100
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 4.0
6.2
Embodied Energy, MJ/kg 55
84
Embodied Water, L/kg 160
440

Common Calculations

Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
19
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 4.0
2.2
Thermal Shock Resistance, points 14
14

Alloy Composition

Carbon (C), % 0 to 0.040
0.050 to 0.25
Chromium (Cr), % 17 to 20
27 to 30
Cobalt (Co), % 0
48 to 52
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 58.6 to 69.5
9.7 to 24.5
Manganese (Mn), % 0.5 to 2.5
0 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.5
Nickel (Ni), % 11 to 14
0 to 4.0
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0.5 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030