COPPER NICKEL

Copper Nickel covers a wide variety of alloys that are single phase throughout the full range of compositions. There are many standard alloys within this range and most of them will have small amounts of other elements added to give the specific properties required.

Accurate control of resistivity during casting, typically +/- 5 %, explains why CuNiR alloys are widely used for resistance applications.CuNi44 exhibits unique resistivity stability to temperature change. It is also possible to cast a very low temperature coefficient of resistance grade.

Two alloys within this group which are often chosen for marine applications are, CN107 (C71500 containing 30% Nickel & CN102 (C70600) containing 10% Nickel. They both have the addition of Iron which improves the sea water corrosion resistance.

Special electronic CuNi25 and CuNi30 grades, with low impurity levels & very good inclusion control, are used to produce Draw rings or caps for hermetic relays and Vacuum circuit breakers.

TYPICAL APPLICATIONS & INDUSTRIES

Marine condenser tubes & Diesel coolers, Coinage & Mesh for the paper industry, De-salination Plants, Chemical, Petrochemical, Oil & gas, Electrical resistance, Thermocouple, Heating elements for circuit breakers, Drawn parts for vacuum circuit breakers.

SPECIFICATION

Niclal 02CuNi2
Niclal 05CuNi5
Niclal 06CuNi6
Niclal 08CuNi8
Niclal 10CuNi10
Niclal 10 FECuNi10Fe1Mn
Niclal 13CuNi13
Niclal 15CuNi15
Niclal 20CuNi20
Niclal 23CuNi23
Niclal 25CuNi25
Niclal 30CuNi30
Niclal 30 FECuNi30Mn1Fe
Constantan 45CuNi44Mn1
Constantan 45 TCRCuNi44Mn1Fe
Niclal 30AASTM C71580
Electro grade
Niclal 30 TICuNi30MnFeTi