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AWS E316L vs. R30006 Cobalt

AWS E316L belongs to the iron alloys classification, while R30006 cobalt belongs to the cobalt alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS E316L and the bottom bar is R30006 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 34
1.0
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
85
Tensile Strength: Ultimate (UTS), MPa 550
900

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1390
1290
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.7

Otherwise Unclassified Properties

Density, g/cm3 7.9
8.6
Embodied Carbon, kg CO2/kg material 4.0
7.8
Embodied Energy, MJ/kg 55
110
Embodied Water, L/kg 160
500

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 19
29
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 4.0
3.9
Thermal Shock Resistance, points 14
26

Alloy Composition

Carbon (C), % 0 to 0.040
0.9 to 1.4
Chromium (Cr), % 17 to 20
27 to 32
Cobalt (Co), % 0
48.6 to 68.1
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 58.6 to 69.5
0 to 3.0
Manganese (Mn), % 0.5 to 2.5
0
Molybdenum (Mo), % 2.0 to 3.0
0 to 1.0
Nickel (Ni), % 11 to 14
0 to 3.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0
4.0 to 6.0