Adinox Overseas is a renowned global supplier and exporter of Copper Nickel 70/30 Tubes, which are famous for their superior resistance to seawater corrosion, marine atmospheres, and biofouling. Produced from an alloy that is 70% copper and 30% nickel, with minor contents of iron and manganese to add strength and corrosion resistance, Copper Nickel 70/30 is classified as UNS C71500 and complies with ASTM B466 standards. The tubes are specifically designed for harsh conditions and are used in a broad range of marine, offshore, chemical processing, shipbuilding, and condenser applications.

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Our Cu-Ni 70/30 Tubes possess favorable mechanical strength, superior thermal conductivity, and superior resistance to stress cracking and pitting in seawater and polluted seawater. These factors make the material well suited to seawater condenser systems, heat exchangers, desalination facilities, and offshore piping. We at Adinox Overseas offer these tubes in seamless as well as welded form and thereby provide a broad range of selections to cater to specific industrial requirements.

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We are driven at Adinox Overseas to achieve excellence in providing customer satisfaction and product reliability. We achieve this through our technologically advanced manufacturing and testing facility and a team of qualified technocrats, thereby being able to supply high-quality Cu-Ni 70/30 Pipes to the international market. Each pipe comes with a comprehensive documentation package consisting of mill test certificates and reports of compliance as well as the traceability documents.

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The Copper Nickel 70/30 Seamless Tubes are carefully crafted for high-pressure applications and conditions where leak-free operation is paramount. The seamless tubes possess fine dimensional precision and mirror-like internal surfaces, thereby making them suitable for fluid flow in delicate and heat-resistant operations. Our Copper Nickel 70/30 Welded Tubes are made using sophisticated welding processes and are extremely resilient to general industrial applications, structural framework, and moderate-pressure conditions.

UNS C71500 alloy has superior resistance to erosion, corrosion, and cavitation, particularly in seawater of high velocities. It is, therefore, one of the most sought-after alloys in shipbuilding and marine construction where reliability and durability are paramount. Due to the anti-microbial characteristics of copper alloys, marine organisms cannot form on the tubing systems, which also translates to lower maintenance cost and the possibility of extending the life of the tubing systems.

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Specifications Of Copper Nickel 70/30 Tubes

Specifications	ASTM B 165 ASME SB 165 / ASTM B 725 ASME SB 725
Dimensions	ASTM, ASME and API
Size	15″NB TO 150″NB IN
Specialized in	Large Diameter Size
Range	6.35 mm OD upto 254 mm OD in 0.6 TO 20 mm thickness.
Type	Seamless / ERW / Welded / Fabricated
Form	Round, Hydraulic Etc
Length	Single Random, Double Random & Cut Length.
End	Plain End, Beveled End, Treaded

Chemical Composition for Copper Nickel 70/30 Tubes

Grade	Cu	Mn	Pb	Ni	Fe	Zn
Cu-Ni 70/30	88.6 min	1.0 max	.05 max	9-11 max	1.8 max	1 max

Mechanical Properties Of Copper Nickel 70/30 Tubes

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1400 °C (2550 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

Application Of Industries

Power Plants

Aerospace

Refineries

Construction

Oil & Gas

Sugar

Chemical

Petrochemical

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