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R30001 Cobalt vs. AWS BVPd-1

R30001 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 (11, in this case) are not shown.

For each property being compared, the top bar is R30001 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 0.28
0.37
Shear Modulus, GPa 86
56
Tensile Strength: Ultimate (UTS), MPa 620
240

Thermal Properties

Latent Heat of Fusion, J/g 310
200
Melting Completion (Liquidus), °C 1530
1240
Melting Onset (Solidus), °C 1260
1230
Specific Heat Capacity, J/kg-K 430
310
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Density, g/cm3 9.0
11

Common Calculations

Stiffness to Weight: Axial, points 14
7.7
Stiffness to Weight: Bending, points 22
16
Strength to Weight: Axial, points 19
6.1
Strength to Weight: Bending, points 18
7.9
Thermal Shock Resistance, points 19
9.8

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 2.0 to 3.0
0 to 0.0050
Chromium (Cr), % 28 to 32
0
Cobalt (Co), % 43 to 59
33.9 to 36
Iron (Fe), % 0 to 3.0
0
Lead (Pb), % 0
0 to 0.0020
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0 to 0.060
Palladium (Pd), % 0
64 to 66
Phosphorus (P), % 0
0 to 0.0020
Silicon (Si), % 0 to 2.0
0
Tungsten (W), % 11 to 13
0
Zinc (Zn), % 0
0 to 0.0010