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 02

CuNi2

Niclal 05

CuNi5

Niclal 06

CuNi6

Niclal 08

CuNi8

Niclal 10

CuNi10

Niclal 10 FE

CuNi10Fe1Mn

Niclal 13

CuNi13

Niclal 15

CuNi15

Niclal 20

CuNi20

Niclal 23

CuNi23

Niclal 25

CuNi25

Niclal 30

CuNi30

Niclal 30 FE

CuNi30Mn1Fe

CuNi44Mn1

CuNi44Mn1Fe

Niclal 30A

ASTM C71580


 

Electro grade

Niclal 30 TI

CuNi30MnFeTi