MakeItFrom.com
Menu (ESC)

R31539 Cobalt vs. AWS BVPd-1

R31539 cobalt belongs to the cobalt alloys classification, while AWS BVPd-1 belongs to the otherwise unclassified metals. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. There are 15 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is R31539 cobalt and the bottom bar is AWS BVPd-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
150
Poisson's Ratio 0.29
0.37
Shear Modulus, GPa 86
56
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
240

Thermal Properties

Latent Heat of Fusion, J/g 320
200
Melting Completion (Liquidus), °C 1360
1240
Melting Onset (Solidus), °C 1290
1230
Specific Heat Capacity, J/kg-K 450
310
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Density, g/cm3 8.4
11

Common Calculations

Stiffness to Weight: Axial, points 15
7.7
Stiffness to Weight: Bending, points 24
16
Strength to Weight: Axial, points 33 to 44
6.1
Strength to Weight: Bending, points 27 to 32
7.9
Thermal Shock Resistance, points 24 to 32
9.8

Alloy Composition

Aluminum (Al), % 0.3 to 1.0
0
Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0 to 0.14
0 to 0.0050
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 57.7 to 68.7
33.9 to 36
Iron (Fe), % 0 to 0.75
0
Lanthanum (La), % 0.030 to 0.2
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0 to 0.060
Nitrogen (N), % 0 to 0.25
0
Palladium (Pd), % 0
64 to 66
Phosphorus (P), % 0
0 to 0.0020
Silicon (Si), % 0 to 1.0
0
Zinc (Zn), % 0
0 to 0.0010