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AWS BVAg-29 vs. R30012 Cobalt

AWS BVAg-29 belongs to the otherwise unclassified metals classification, while R30012 cobalt belongs to the cobalt alloys. 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 AWS BVAg-29 and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
220
Poisson's Ratio 0.37
0.28
Shear Modulus, GPa 27
86
Tensile Strength: Ultimate (UTS), MPa 180
830

Thermal Properties

Latent Heat of Fusion, J/g 120
320
Melting Completion (Liquidus), °C 710
1470
Melting Onset (Solidus), °C 620
1280
Specific Heat Capacity, J/kg-K 270
440
Thermal Expansion, µm/m-K 20
12

Otherwise Unclassified Properties

Density, g/cm3 9.7
8.8

Common Calculations

Stiffness to Weight: Axial, points 4.2
14
Stiffness to Weight: Bending, points 14
23
Strength to Weight: Axial, points 5.2
26
Strength to Weight: Bending, points 7.3
22
Thermal Shock Resistance, points 8.8
23

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
1.4 to 2.0
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
47.5 to 64.1
Copper (Cu), % 22.5 to 25.5
0
Indium (In), % 14 to 15
0
Iron (Fe), % 0
0 to 3.0
Lead (Pb), % 0 to 0.0020
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 3.0
Phosphorus (P), % 0 to 0.0020
0
Silicon (Si), % 0
0 to 2.0
Silver (Ag), % 60.5 to 62.5
0
Tungsten (W), % 0
7.5 to 9.5
Zinc (Zn), % 0 to 0.0010
0