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AWS BAg-7 vs. R30075 Cobalt

AWS BAg-7 belongs to the otherwise unclassified metals classification, while R30075 cobalt belongs to the cobalt alloys. There are 17 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-7 and the bottom bar is R30075 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
210 to 250
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 31
82 to 98
Tensile Strength: Ultimate (UTS), MPa 150
780 to 1280

Thermal Properties

Latent Heat of Fusion, J/g 130
320
Melting Completion (Liquidus), °C 650
1360
Melting Onset (Solidus), °C 620
1290
Specific Heat Capacity, J/kg-K 290
450
Thermal Expansion, µm/m-K 20
12

Otherwise Unclassified Properties

Density, g/cm3 9.3
8.4
Embodied Carbon, kg CO2/kg material 55
8.1
Embodied Energy, MJ/kg 860
110

Common Calculations

Stiffness to Weight: Axial, points 4.9
14 to 17
Stiffness to Weight: Bending, points 16
24 to 25
Strength to Weight: Axial, points 4.5
26 to 42
Strength to Weight: Bending, points 6.7
22 to 31
Thermal Shock Resistance, points 6.4
21 to 29

Alloy Composition


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Aluminum (Al), % 0
0 to 0.1
Boron (B), % 0
0 to 0.010
Carbon (C), % 0
0 to 0.35
Chromium (Cr), % 0
27 to 30
Cobalt (Co), % 0
58.7 to 68
Copper (Cu), % 21 to 23
0
Iron (Fe), % 0
0 to 0.75
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0
0 to 0.5
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 55 to 57
0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 4.5 to 5.5
0
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 0
0 to 0.2
Zinc (Zn), % 15 to 19
0
Residuals, % 0 to 0.15
0