Copper Nickel Products Supplier in India

Cu-Ni 90/10 and 70/30 pipes, tubes, plates, sheets, flanges, fittings and bars for seawater and heat-transfer systems.
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REQUEST A COPPER NICKEL QUOTECOMPARE 90/10 AND 70/30

A buyer selecting copper nickel normally starts with the service condition, required product form and governing standard rather than a generic material name. Lakshya Steel supplies copper nickel products for industrial, fabrication and project requirements, with the range organised into grade hubs and product pages so that procurement teams can compare the correct specification before requesting a quotation.

The final selection depends on grade, product form, dimensions, condition, testing and end use. Use the grade and product guides below to narrow the requirement, follow the relevant product link for detailed standards and sizes, and submit the complete specification through the request-a-quote page for a project-specific response.

Copper Nickel Products 

Choose the alloy first, then select the product form. The grade hub pages contain the detailed sizes, standards and ordering information for each range.

Copper Nickel Product Range

Product / Grade

Buyer Use

Copper Nickel 90/10 products

Grade hub for C70600 pipes, tubes, plates, flanges and bars.

Copper Nickel 70/30 products

Grade hub for C71500 product forms.

90/10 tubes

Condenser and heat-exchanger tubing.

90/10 plates and sheets

Flat products for fabricated marine equipment.

90/10 flanges

Piping flanges for compatible seawater systems.

70/30 welded tubes

Welded tubing for demanding heat-transfer service.

70/30 plates and sheets

Flat products for higher-nickel marine fabrication.

70/30 rods and bars

Machined components, valve parts and marine hardware.

Material and Grade Selection Guide

Option

Reference / Composition Basis

Choose It When

Selection Caution

Cu-Ni 90/10

UNS C70600

Common seawater piping, condenser tube and marine systems

Good fabrication and broad marine use; velocity and contamination still matter.

Cu-Ni 70/30

UNS C71500

More demanding seawater, condenser and high-velocity duties

Higher nickel content and strength; cost and fabrication requirements differ.

Weld grades

UNS C70620 / C71520

Products intended for welded fabrication under applicable standards

Confirm actual grade availability and welding specification.

Standards by Product Form

Product Form

Common Reference

What to State in the Enquiry

Condenser and heat-exchanger tube

ASTM B111

Alloy, temper, OD, wall, length and tests

Seamless pipe and tube

ASTM B466

UNS grade, dimensions, temper and testing

Welded pipe

ASTM B467

Grade, weld condition, dimensions and examination

Plate, sheet and strip

ASTM B122 / B171, depending on use

Alloy, temper, thickness, width and length

Rod, bar and forgings

ASTM B151

Diameter, temper, tolerance and length

Flanges and fittings

Material standard plus ASME/EN dimensional standard

Grade, size, class, facing, schedule and joint type

How to Select the Right Product Form

  • Use pipe and tube pages when the enquiry is controlled by OD or NPS, wall thickness, schedule, construction method and pressure or heat-transfer service.
  • Use plate and sheet pages when thickness, width, length, finish, forming and fabrication are the main buying variables.
  • Use bar pages when diameter or section, condition, tolerance, machining and heat treatment control the requirement.
  • Use flange and fitting pages when the design is controlled by size, pressure class, facing, schedule, joint type and piping code.
  • Use component pages for drawing-based parts with defined tolerances, inspection and end-use information.

Industries We Serve

  • Shipbuilding and marine: Seawater piping, valves, flanges, fittings and marine hardware where biofouling and flow conditions are considered.
  • Power generation: Condenser and heat-exchanger tubes selected by water chemistry, velocity and tube-sheet design.
  • Desalination: Piping, tubing and fabricated components exposed to seawater and brine under controlled service conditions.
  • Offshore oil and gas: Firewater, cooling-water and utility systems with project-specific corrosion and pressure requirements.
  • Heat-exchanger manufacturing: Tube, sheet and bar products selected for forming, welding, expansion and thermal duty.

Testing and Documentation

Testing and documentation should be agreed before quotation. Depending on the product standard and project, the requirement may include a mill test certificate, heat-number traceability, chemical and mechanical test results, dimensional inspection, positive material identification, non-destructive examination, pressure testing, impact testing, surface or coating records and third-party inspection. Lakshya Steel should publish only the services that are confirmed for the selected product and supply route.

Prepare a Clear Enquiry

  • Material or grade
  • Product form and governing standard
  • Dimensions, thickness, wall, schedule, section or pressure class
  • Quantity and length
  • Condition, temper, heat treatment or finish
  • Testing, certificate and inspection requirement
  • Drawing and tolerances for components
  • Delivery destination and end use

Frequently Asked Questions About Copper Nickel Products

1. What is the difference between Copper Nickel 90/10 and 70/30?

Cu-Ni 90/10, UNS C70600, is widely used for seawater piping and heat-transfer systems because it combines corrosion resistance with good fabrication. Cu-Ni 70/30, UNS C71500, has more nickel and higher strength for more demanding service. Water chemistry, velocity, design and cost should guide the choice.

2. Which ASTM standard applies to copper nickel tubes?

ASTM B111 is common for condenser and heat-exchanger tubes, while ASTM B466 covers seamless pipe and tube. Welded pipe may use B467. The purchase order should state the UNS grade, temper, OD or NPS, wall thickness, length, testing and dimensional standard.

3. Can copper nickel products be welded?

Copper nickel alloys can be welded using clean procedures and suitable filler metal. Weld-product grades such as C70620 or C71520 may be specified for some forms. Joint design, heat input, contamination control and post-weld cleaning should follow the applicable procedure and project specification.

4. Where are copper nickel products used?

They are used in seawater piping, shipbuilding, condensers, heat exchangers, desalination, offshore cooling systems and marine hardware. Good service depends on flow velocity, water chemistry, oxygen, sulfides, deposits, galvanic couples and commissioning practice, so grade selection should consider the complete system.

5. What should be included in a copper nickel enquiry?

Provide the UNS grade, product form, ASTM or ASME standard, size, wall or plate thickness, length, quantity, temper, testing, certification and destination. For piping components, add the schedule, pressure class, facing or joint type and drawing where applicable.

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