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AWS E70C-B2L vs. G-CoCr28 Cobalt

AWS E70C-B2L belongs to the iron alloys classification, while G-CoCr28 cobalt belongs to the cobalt alloys. There are 25 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 AWS E70C-B2L and the bottom bar is G-CoCr28 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 21
6.7
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
83
Tensile Strength: Ultimate (UTS), MPa 580
560
Tensile Strength: Yield (Proof), MPa 460
260

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1460
1330
Melting Onset (Solidus), °C 1420
1270
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
8.5
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
100
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.6
6.2
Embodied Energy, MJ/kg 22
84
Embodied Water, L/kg 54
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
31
Resilience: Unit (Modulus of Resilience), kJ/m3 550
160
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
19
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 11
2.2
Thermal Shock Resistance, points 17
14

Alloy Composition


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Carbon (C), % 0 to 0.050
0.050 to 0.25
Chromium (Cr), % 1.0 to 1.5
27 to 30
Cobalt (Co), % 0
48 to 52
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 95.1 to 98
9.7 to 24.5
Manganese (Mn), % 0.4 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.4 to 0.65
0 to 0.5
Nickel (Ni), % 0 to 0.2
0 to 4.0
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.25 to 0.6
0.5 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 0.030
0
Residuals, % 0 to 0.5
0