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AWS BVAg-32 vs. R31233 Cobalt

AWS BVAg-32 belongs to the otherwise unclassified metals classification, while R31233 cobalt belongs to the cobalt alloys. There are 15 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-32 and the bottom bar is R31233 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 93
220
Poisson's Ratio 0.37
0.29
Shear Modulus, GPa 34
85
Tensile Strength: Ultimate (UTS), MPa 180
1020

Thermal Properties

Latent Heat of Fusion, J/g 140
320
Melting Completion (Liquidus), °C 950
1350
Melting Onset (Solidus), °C 900
1330
Specific Heat Capacity, J/kg-K 270
440
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Density, g/cm3 11
8.6

Common Calculations

Stiffness to Weight: Axial, points 4.9
14
Stiffness to Weight: Bending, points 14
23
Strength to Weight: Axial, points 4.7
33
Strength to Weight: Bending, points 6.7
26
Thermal Shock Resistance, points 8.0
25

Alloy Composition

Boron (B), % 0
0 to 0.015
Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0.020 to 0.1
Chromium (Cr), % 0
23.5 to 27.5
Cobalt (Co), % 0
44.7 to 63.3
Copper (Cu), % 20 to 22
0
Iron (Fe), % 0
1.0 to 5.0
Lead (Pb), % 0 to 0.0020
0
Manganese (Mn), % 0
0.1 to 1.5
Molybdenum (Mo), % 0
4.0 to 6.0
Nickel (Ni), % 0
7.0 to 11
Nitrogen (N), % 0
0.030 to 0.12
Palladium (Pd), % 23 to 27
0
Phosphorus (P), % 0 to 0.0020
0 to 0.030
Silicon (Si), % 0
0.050 to 1.0
Silver (Ag), % 53 to 55
0
Sulfur (S), % 0
0 to 0.020
Tungsten (W), % 0
1.0 to 3.0
Zinc (Zn), % 0 to 0.0010
0