Copper - Nickel Alloys ( Cupronickel ) Foil - Sheet - Strip - High
Cupronickel (also known as copper-nickel) is an alloy of copper
that contains nickel and strengthening elements, such as iron and
Cupronickel is highly resistant to corrosion in seawater because
its electrode potential is adjusted to be neutral with regard to
seawater. Because of this, it is used for piping, heat exchangers
and condensers in seawater systems, marine hardware, and sometimes
for the propellers, crankshafts and hulls of premium tugboats,
fishing boats and other working boats.
A common consumer use of cupronickel is in silver-coloured
modern-circulated coins. A typical mix is 75% copper, 25% nickel,
and a trace amount of manganese. In the past, true silver coins
were debased with cupronickel.
Thermocouples and resistors whose resistance is stable across
changes in temperature contain the 55% copper-45% nickel alloy
Monel metal is a nickel-copper alloy, containing a minimum of 63%
Despite its high copper content, cupronickel is silver in colour.
Hot-dip tin plating
Deburred or rounded edges
Bright and polished surfaces
Foil with protective coatings
Profiled foil by either milling or stamping