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EN 2.4964 Cobalt vs. AWS BNi-7

EN 2.4964 cobalt belongs to the cobalt alloys classification, while AWS BNi-7 belongs to the nickel alloys. They have a modest 24% 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 (11, 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 BNi-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
170
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 86
67
Tensile Strength: Ultimate (UTS), MPa 960
550

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1630
890
Melting Onset (Solidus), °C 1550
890
Specific Heat Capacity, J/kg-K 400
490
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.0
Embodied Carbon, kg CO2/kg material 9.8
8.8
Embodied Energy, MJ/kg 140
120
Embodied Water, L/kg 450
240

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 21
23
Strength to Weight: Axial, points 28
19
Strength to Weight: Bending, points 23
19
Thermal Shock Resistance, points 25
21

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
0 to 0.010
Carbon (C), % 0.050 to 0.15
0 to 0.060
Chromium (Cr), % 19 to 21
13 to 15
Cobalt (Co), % 46.4 to 58
0 to 0.1
Iron (Fe), % 0 to 3.0
0 to 0.2
Manganese (Mn), % 0 to 2.0
0 to 0.040
Nickel (Ni), % 9.0 to 11
73.3 to 77.3
Phosphorus (P), % 0 to 0.020
9.7 to 10.5
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.4
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Tungsten (W), % 14 to 16
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5