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AWS BAg-20 vs. R30016 Cobalt

AWS BAg-20 belongs to the otherwise unclassified metals classification, while R30016 cobalt belongs to the cobalt alloys. There are 17 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-20 and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 93
220
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 35
85
Tensile Strength: Ultimate (UTS), MPa 160
1010

Thermal Properties

Latent Heat of Fusion, J/g 150
320
Melting Completion (Liquidus), °C 770
1360
Melting Onset (Solidus), °C 680
1270
Specific Heat Capacity, J/kg-K 340
450
Thermal Expansion, µm/m-K 21
14

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.5
Embodied Carbon, kg CO2/kg material 30
7.7
Embodied Energy, MJ/kg 480
110

Common Calculations

Stiffness to Weight: Axial, points 6.0
14
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 5.1
33
Strength to Weight: Bending, points 7.6
26
Thermal Shock Resistance, points 5.9
24

Alloy Composition


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Carbon (C), % 0
0.9 to 1.4
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
49.6 to 66.9
Copper (Cu), % 37 to 39
0
Iron (Fe), % 0
0 to 3.0
Manganese (Mn), % 0
0.5 to 2.0
Molybdenum (Mo), % 0
0 to 1.5
Nickel (Ni), % 0
0 to 3.0
Silicon (Si), % 0
0.2 to 2.0
Silver (Ag), % 29 to 31
0
Tungsten (W), % 0
3.5 to 5.5
Zinc (Zn), % 30 to 34
0
Residuals, % 0 to 0.15
0