Copper-Nickel Alloys CuNi10Fe1Mn, CuNi30Fe1Mn

Copper-nickel alloys, also known as Cu-Ni (10 to 30 % nickel), offer excellent corrosion resistance, especially in marine saltwater environments.

The chemical composition of alloys Copper-Nickel 10® and Copper-Nickel 30® has been optimized in collaboration with our customers in order to maximize the behavior of the metal under the most stringent conditions of seawater corrosion.

Additionally, Copper-Nickel 10® and Copper-Nickel 30® meet all requirements of most international standards.

Standards : NFA 51 – 102, DIN 17664 2.0872, DIN 86019 2.1972, EEMUA 144 UNS 7060X, BS 2871 CN 102,
NES 779, MIL-T-16420K C70600, ASTM B466 C70600, JIS H 3300 C7060.

Standards : NFA 51-102, DIN 17664 2.0882, BS 2871 CN 107, DGS 320, NES 780, MIL-T-16420K C71500,
ASTM B 466 C71500, JIS H 3300 C7150.

Lebronze alloys has an extensive range of Copper Nickel materials and components designed for the Marine, Oil & Gas and Defense challenging environments (seawater corrosion in topsides, ships and submarines)

Copper-Nickel Alloys CuNi10Fe1Mn, CuNi30Fe1Mn

Copper-Nickel Alloys CuNi10Fe1Mn, CuNi30Fe1Mn

Properties and Benefits
Copper-Nickel 10 and Copper-Nickel 30 have an excellent behavior when exposed to all forms of marine corrosion (sea water, brine and sea atmospheric exposures). This property is mainly due to the fact that the alloy prevents dissolution by forming a very strong protective surface film.

Copper-Nickel 10® and Copper-Copper-Nickel 30® have also a good behaviour in other environments such as a good resistance in an ammoniacal environment. The behaviour of copper nickel in the presence of crude petroleum is correct in the vapour phase, with however, the risk of the protective film being destroyed.

Copper-Nickel 10® resistance to fire : Tests of resistance to fire have been made in simulating the service conditions of a pipeline during an offshore fire : piping empty – during 5 minutes – at 700°C, partly in the flame, then 15 minutes on water (with the start of the sprinklers). They have shown the total reliability of Copper-Nickel  10® : no rupture of the weld or of the brazing, no leakage, no permanent deformation. After the end of the fire, the piping in Copper-Nickel 10® has needed no replacement

A large range of bars, pipes and fittings
Through our facilities and fully integrated production process, from raw material through smelting, casting extrusion, drawing, forging, forming, stamping and machining, we manufacture the complete range of pipes, fittings, flanges covering all various international standards or dedicated specifications applicable to copper nickel products.

We can provide products from 1⁄4” till 48” in order to cover the complete package required for whatever naval project. :

Bars (rounds, hexagones, flats, squares)

Seamless and/or welded pipes

Butt weld fittings (elbows, concentric and eccentric reducers, equal and reducing tees, saddles, end caps)

Machined and forged fittings ( forged fittings threaded, reducing inserts, bosses, nipples, forged or machined fittings-socket welding or capillary ends, unions, connectors, adaptors, plugs & caps, olets…)

Flanges (composite slip on flanges, composite weld neck flanges, composite blind flanges, composite spectacle blind flanges, solid slip on flanges, solid welding neck flanges, solid socket welding flanges, solid blind flanges, solid threaded flanges, solid spectacle blind flanges, socket weld flanges, bulkhead fittings)

Copper Nickel Fin Tube

ASTM B135 JIS GB/T1527-2017 Straight Rectangular Oval Brass Tubes


C70600 CuNi90-10 Copper Nickel Condenser Tube

C26000 Seamless Brass Alloy Tube Oval Type

ASTM B135 Brass Tubes of Instrument with OD3mm-165mm

Copper Alloy Finned Tube for Heat Exchanger

ASTM B135 Seamless Brass Tube OD3mm-165mm

Square Rectangular Copper Block UNS.C16200

Copper Pipe Fittings