Copper Alloys - Copper C106 Properties, Fabrication and Applications

It is believed that copper has been mined for over 5000 years. It can be found in elemental form and in the minerals cuprite, malachite, azurite, chalcopyrite and bornite. Copper is also often found as a by-product of silver production.

Basic Copper Properties

Next to silver, copper is the next best conductor. It is a yellowish red metal that polishes to a bright metallic lustre. It is tough, ductile and malleable. Copper has a disagreeable taste and a peculiar smell.

Copper is resistant to corrosion in most atmospheres including marine and industrial environments. It is corroded by oxidising acids, halogens, sulphides and ammonia based solutions.

Alloy C106

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

Chemical Composition of Copper alloy C106

Table 1. Typical chemical composition for copper alloy C106

%

C106

Others (Total)

0.0-0.10

Copper (Cu)

Balance

Properties of Copper alloy C106

Mechanical Properties of Copper alloy C106

Table 2. Typical mechanical properties for copper alloy C106

Grade

C106

Tensile Strength

200 - 360 MPa

Proof Stress

50 - 340 MPa

Elongation A50 mm

50 - 5 %

Hardness Vickers

40 - 110 Hv

Physical Properties of Copper alloy C106

Table 3. Typical physical properties for copper alloy C106

Property

Value

Density

8.92 g/cm3

Melting Point

1083 °C

Modulus of Elasticity

117 GPa

Electrical Resistivity

0.0203x10-6 Ω.m

Thermal Conductivity

391.2 W/m.K

Thermal Expansion

16.9 x 10-6 /K

Alloy Designations

Phosphorous de-oxidised non-arsenical copper corresponds to the following standard designations and specifications:

CEN

BS

UNS

ISO

CW024A

C106

C12200

Cu-DHP

Corrosion Resistance of Copper alloy C106

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

Fabrication of Copper alloy C106

Cold Working of Copper alloy C106

Copper alloy C106 has an excellent response to cold working.

Hot Working of Copper alloy C106

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.

Machinability

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

Supplied Form

Copper alloy C106 is typically supplied by Aalco in the following forms:

  • Round tube
  • Sheet – Half Hard
  • Sheet – Soft

DISCLAIMER

This Data is indicative only and must not be seen as a substitute for the full specification from which it is drawn. In particular, the mechanical property requirements vary widely with temper, product and product dimensions. The information is based on our present knowledge and is given in good faith. However, no liability will be accepted by the Company is respect of any action taken by any third party in reliance thereon.

As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose.

Any advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. Any contract between the Company and a customer will be subject to the company’s Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.

This information has been sourced, reviewed and adapted from materials provided by Aalco - Ferrous and Non-Ferrous Metals Stockist.

For more information on this source, please visit Aalco - Ferrous and Non-Ferrous Metals Stockist.

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