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AWS BCo-1 vs. C55284 Copper

AWS BCo-1 belongs to the cobalt alloys classification, while C55284 copper belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS BCo-1 and the bottom bar is C55284 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Poisson's Ratio 0.3
0.34
Shear Modulus, GPa 78
38
Tensile Strength: Ultimate (UTS), MPa 700
180

Thermal Properties

Brazing Temperature, °C 1150 to 1230
700 to 820
Latent Heat of Fusion, J/g 420
180
Melting Completion (Liquidus), °C 1150
800
Melting Onset (Solidus), °C 1120
640
Specific Heat Capacity, J/kg-K 480
380
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 8.0
16
Embodied Energy, MJ/kg 110
260

Common Calculations

Stiffness to Weight: Axial, points 14
6.5
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 24
5.6
Strength to Weight: Bending, points 22
8.0
Thermal Shock Resistance, points 21
7.4

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0.7 to 0.9
0
Carbon (C), % 0.35 to 0.45
0
Chromium (Cr), % 18 to 20
0
Cobalt (Co), % 46 to 54
0
Copper (Cu), % 0
79.2 to 80.7
Iron (Fe), % 0 to 1.0
0
Nickel (Ni), % 16 to 18
0
Phosphorus (P), % 0 to 0.020
4.8 to 5.2
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 7.5 to 8.5
0
Silver (Ag), % 0
14.5 to 15.5
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.050
0
Tungsten (W), % 3.5 to 4.5
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.15