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AWS BVAg-6b vs. R31539 Cobalt

AWS BVAg-6b belongs to the otherwise unclassified metals classification, while R31539 cobalt belongs to the cobalt alloys. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-6b and the bottom bar is R31539 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 93
220
Poisson's Ratio 0.35
0.29
Shear Modulus, GPa 35
86
Tensile Strength: Ultimate (UTS), MPa 180
1000 to 1340

Thermal Properties

Latent Heat of Fusion, J/g 160
320
Melting Completion (Liquidus), °C 870
1360
Melting Onset (Solidus), °C 780
1290
Specific Heat Capacity, J/kg-K 310
450
Thermal Expansion, µm/m-K 19
13

Otherwise Unclassified Properties

Density, g/cm3 9.7
8.4
Embodied Carbon, kg CO2/kg material 49
8.2
Embodied Energy, MJ/kg 770
110

Common Calculations

Stiffness to Weight: Axial, points 5.3
15
Stiffness to Weight: Bending, points 16
24
Strength to Weight: Axial, points 5.1
33 to 44
Strength to Weight: Bending, points 7.3
27 to 32
Thermal Shock Resistance, points 7.4
24 to 32

Alloy Composition

Aluminum (Al), % 0
0.3 to 1.0
Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0 to 0.14
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0
57.7 to 68.7
Copper (Cu), % 49 to 51
0
Iron (Fe), % 0
0 to 0.75
Lanthanum (La), % 0
0.030 to 0.2
Lead (Pb), % 0 to 0.0020
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.0020
0
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 49 to 51
0
Zinc (Zn), % 0 to 0.0010
0