- sales@ojaspipesandtubes.co.in
- Kolkata, Kolkata
Home > Copper Nickel > Copper Nickel 70/30 Tubing
Ojas Pipes and Tubes is a well-respected manufacturer and supplier of top-notch Copper Nickel 70/30 Pipes, located in Kolkata, India. They’ve built a solid reputation for providing corrosion-resistant and durable non-ferrous piping solutions. Ojas focuses on Copper Nickel alloys that are perfect for tough marine and industrial settings. The 70/30 grade, which consists of 70% Copper and 30% Nickel, boasts impressive strength and outstanding resistance to seawater corrosion, making it a go-to choice for high-performance systems. With cutting-edge production capabilities, commitment to global standards, and tailored dimensions, Ojas caters to industries like shipbuilding, desalination, power generation, and offshore oil & gas. Customers trust Ojas for their quality, precision, and timely delivery.
Copper Nickel 70/30 Pipes are made up of about 70% Copper and 30% Nickel, with a bit of Iron (0.4–1.0%) and Manganese (0.5–1.0%) added to boost strength and corrosion resistance. This alloy is especially resilient against seawater, erosion, and biofouling. In terms of mechanical properties, it offers a tensile strength ranging from 520–580 MPa and a yield strength of about 170–250 MPa, with elongation values reaching up to 30%. These pipes maintain excellent ductility, toughness, and weldability, even in challenging marine conditions. Their remarkable thermal conductivity and resistance to stress corrosion make them perfect for long-term use in high-pressure, high-salinity environments.
Specification : ASTM B466, B467, B111 / ASME SB466, SB467, SB111
Standard : ASTM, ASME and API
Size : 1/2″ TO 6′ IN OD & NB IN Various SWG & SCH
Outer Diameter : 4.00 to 22.00 mm
Wall Thickness : Between 0.15mm and 1.50 mm
Type : Seamless / ERW / Welded / Fabricated Pipes
Form : Round, Square, Rectangular, Oval, Hydraulic Etc
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Inspection, Test Reports : Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
Packing : Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials : Sizes and Specifications other than above can be manufactured on request
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
|---|---|---|---|---|---|---|
| Cu-Ni 70-30 | 65.0 min | 1 max | .05 max | 29-33 | 0.4-1.0 | 1 max |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 372-517 MPa | 54000-75000 psi |
| Tensile strength, yield (depending on temper) | 88.0-483 MPa | 12800-70100 psi |
| Elongation at break (in 381 mm) | 45.0% | 45.0% |
| Charpy impact | 107 J | 78.9 ft-lb |
| Machinability (UNS C36000 (free-cutting brass) = 100%) | 20% | 20% |
| Shear modulus | 57.0 GPa | 8270 ksi |
| Poisson’s ratio | 0.34 | 0.34 |
| Elastic modulus | 150 GPa | 21800 ksi |
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.94 g/cm3 | 0.323 lb/in3 |
| Melting point | 2140°F | 1171°C |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Copper Nickel 70/30 Tubing from Ojas Pipes and Tubes ensures outstanding corrosion resistance, high strength, and durability. Our Tube is designed for diverse industrial applications, delivering reliability and performance in challenging environments while maintaining competitive pricing.
Ojas Pipes and Tubes, one of the largest suppliers of Copper Nickel 70/30 Tubing in Kolkata, India, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for copper nickel products in the region.
| Size (in) | Wall Thickness (in) | Outside Diameter (in) | Approx Weight (lbs/ft) |
|---|---|---|---|
| 3/8 OD | 0.049 | 0.38 | 0.2 |
| 2-1/2 | 0.38 | 2.88 | 12.1 |
| 1/4 OD | 0.035 | 0.25 | 0.1 |
| 1/4 | 0.072 | 0.54 | 0.43 |
| 1/2 | 0.120 | 0.84 | 1.1 |
| 3/8 | 0.095 | 0.68 | 0.19 |
| 1 | 0.180 | 1.32 | 2.61 |
| 1-1/4 | 0.220 | 1.66 | 2.18 |
| 3/4 | 0.148 | 1.05 | 1.71 |
| 1-1/2 | 0.25 | 1.9 | 5.25 |
| 2 | 0.340 | 2.38 | 8.85 |
| 3 | 0.46 | 3.5 | 18.7 |
Yes, we offer custom sizes for Copper Nickel 70/30 Tubing to meet your specific requirements. Our team at Ojas Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@ojaspipesandtubes.co.in.
Copper Nickel 70/30 Pipes find extensive use in marine and offshore industries thanks to their outstanding resistance to seawater corrosion and mechanical wear. You’ll often see them in seawater cooling systems, heat exchangers, condensers, ballast systems, firefighting pipelines, and bilge systems in shipbuilding. In power plants and desalination facilities, they play a crucial role in brine heaters and evaporators. Their excellent thermal conductivity and resistance to biofouling also make them ideal for hydraulic and pneumatic systems in coastal and naval operations.
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