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AWS ERNiCrFe-6 vs. AWS BCo-1

AWS ERNiCrFe-6 belongs to the nickel alloys classification, while AWS BCo-1 belongs to the cobalt alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 18 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCrFe-6 and the bottom bar is AWS BCo-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 74
78
Tensile Strength: Ultimate (UTS), MPa 630
700

Thermal Properties

Latent Heat of Fusion, J/g 310
420
Melting Completion (Liquidus), °C 1370
1150
Melting Onset (Solidus), °C 1320
1120
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.1
Embodied Carbon, kg CO2/kg material 9.8
8.0
Embodied Energy, MJ/kg 140
110
Embodied Water, L/kg 260
430

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 19
22
Thermal Shock Resistance, points 19
21

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
0.7 to 0.9
Carbon (C), % 0 to 0.080
0.35 to 0.45
Chromium (Cr), % 14 to 17
18 to 20
Cobalt (Co), % 0
46 to 54
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 0 to 8.0
0 to 1.0
Manganese (Mn), % 2.0 to 2.7
0
Nickel (Ni), % 67 to 81.5
16 to 18
Phosphorus (P), % 0 to 0.030
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.35
7.5 to 8.5
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 2.5 to 3.5
0 to 0.050
Tungsten (W), % 0
3.5 to 4.5
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0 to 0.5
0 to 0.5