Alloy C106

Copper alloy C106 is phosphorous de-oxidised non-arsenical copper that is 99.85% pure.

Typical mechanical properties for copper alloy C106

Grade C106 Tensile Strength (MPa) 220, Proof Stress 0.2% (MPa) 45, Elongation A5 (%) 45, Hardness VPN 45-60

Typical physical properties for copper alloy C106

Density 8.94 g/cm3

Melting Point 1083°C

Modulus of Elasticity GPa

Electrical Resistivity 0.0203x10-6 Ω.m

Thermal Conductivity 339.2 W/m.K at 100°C

Thermal Expansion 16.9x10-6 /K at 100°C

Corrosion resistance is either good or excellent in most environments and atmospheres other than those containing ammonia ions.

Copper alloy C106 has an excellent response to cold working.

With forging of brass rated as 100, the hot forgeability of Copper alloy C106 is rated at 65. Hot working temperatures should be between 760 and 870°C

Heat Treatment of Copper alloy C106

Solution treatment or annealing can be done by rapid cooling after heating to 370-650°C.


This alloy has a machinability rating of 20 when Alloy 360 FC Brass is 100.

Welding of Copper alloy C106

Deoxidation of Copper alloy C106 improves embrittlement resistance during welding.

Brazing and soldering are both excellent joining methods for Copper alloy C106. Gas shielded arc welding is also excellent. Oxyacetylene welding and butt welding are good. Welding methods not recommended include:

Coated metal arc welding

Spot welding

Seam welding

Applications of Copper alloy C106

Copper alloy C106 is typically used in applications like:

Refrigeration, Gutters and roofing, Gas plants, Busbars, Hydraulic, air and oil lines, Air Conditioning and refrigeration, Heater units and burners tubes Consumer, Plumbing pipe and fittings.




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