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Copper Alloy Engineering Tube

Copper alloys have been designed to match capabilities to needs and are amongst the oldest materials in the service of man.

Even small additions of a second element can significantly effect a property.

The alloying elements employed to alter the characteristics of pure copper used for copper alloy engineering tubing impart differing characteristics, often in combination: strength, temperature capabilities, machining properties or corrosion resistance. They all retain to some degree basic properties of copper: ductility, thermal and electrical conductivity.

All the alloys are fairly strong: high strength alloys can be treated to achieve well over 500 MPa (aluminium brass reaches 550 and phosphor bronze over 650 MPa).

ALLOY TYPE BSI ISO UNS COMMON NAMES
Copper Nickel 90/10 CN102 CuNi10Fe1Mn C70600 90/10 Copper Nickel, Kunifer 103
70/30 CN107 CuNi30Mn1Fe C71500 70/30 Copper Nickel, Kunifer 303
66/2/2 CN108 CuNi30Fe2Mn2 C71640 66/2/2 Copper Nickel, Yorcoron3
Brass 90/10 CZ101 CuZn10 C22000 Gilding Metal or Bronze
70/30 CZ106 CuZn30 C26000 Cartridge Brass
70/30 CZ126 CuZn30As - Arsenical Brass
63/37 CZ108 CuZn37 C27200 Common Brass
- CZ110 CuZn22A12 C68700 Aluminium Brass, Yorcalbro3
- CZ111 CuZn28Sn1 C44300 Admiralty Brass
- CZ112 CuZn38Sn1 - Naval Brass
Bronze 95/5 PB102 CuSn5 C51000 Phosphor Bronze
92/8 PB104 CuSn8 C52100 Phosphor Bronze

(trade mark of 3IMI)