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AWS BAg-19 vs. R30816 Cobalt

AWS BAg-19 belongs to the otherwise unclassified metals classification, while R30816 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 BAg-19 and the bottom bar is R30816 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
210
Poisson's Ratio 0.37
0.3
Shear Modulus, GPa 27
81
Tensile Strength: Ultimate (UTS), MPa 140
1020

Thermal Properties

Latent Heat of Fusion, J/g 120
300
Melting Completion (Liquidus), °C 890
1540
Melting Onset (Solidus), °C 760
1460
Specific Heat Capacity, J/kg-K 250
420
Thermal Expansion, µm/m-K 20
12

Otherwise Unclassified Properties

Density, g/cm3 10
9.1

Common Calculations

Stiffness to Weight: Axial, points 4.0
13
Stiffness to Weight: Bending, points 14
22
Strength to Weight: Axial, points 3.8
31
Strength to Weight: Bending, points 5.8
25
Thermal Shock Resistance, points 6.9
28

Alloy Composition

Carbon (C), % 0
0.32 to 0.42
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
40 to 49.8
Copper (Cu), % 6.6 to 7.9
0
Iron (Fe), % 0
0 to 5.0
Lithium (Li), % 0.15 to 0.3
0
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0
19 to 21
Niobium (Nb), % 0
3.5 to 4.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 92 to 93
0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0
3.5 to 4.5
Tungsten (W), % 0
3.5 to 4.5
Residuals, % 0 to 0.15
0