- sales@ojaspipesandtubes.co.in
- Kolkata, Kolkata
Home > Copper Nickel > Copper Nickel Coil Tubing
Ojas Pipes and Tubes stands out as a top manufacturer and supplier of high-performance Copper Nickel Coil Tubing, proudly based in Kolkata, India. With a focus on non-ferrous alloy solutions, Ojas delivers precision-engineered Cu-Ni coil tubing that boasts remarkable corrosion resistance, particularly in marine and chemical processing settings. Thanks to their advanced production capabilities and commitment to international standards, the company offers a variety of coil tubing grades, including 90/10 and 70/30, customized to meet client needs. Ojas Pipes and Tubes has earned the trust of various industries for its reliable products, consistent quality, quick turnaround times, and competitive pricing for both local and international clients.
Copper Nickel Coil Tubing generally consists of 90% Copper and 10% Nickel (90/10 grade) or 70% Copper and 30% Nickel (70/30 grade), with small amounts of Iron and Manganese added to boost strength and corrosion resistance. This alloy is known for its impressive mechanical properties, featuring tensile strength between 310–500 MPa and yield strength from 100–150 MPa, depending on the specific grade. It also offers good ductility (with elongation up to 45%), high thermal conductivity, and outstanding resistance to seawater corrosion, erosion, and stress corrosion cracking—making it perfect for demanding applications in tough, high-pressure environments.
Dimensions : DIN, ASTM, ASME, BS and all International Standards
Grade : Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Size Range : 1/8” to 2” and 2mm to 32mm tube diameter
Working Pressure : up to 6,000psi (based on severity of application)
Available Thread : NPT(ANSI B1.20.1), and ISO thread configurations (BSPT, BSPP)
| Element | Cu | Mn | Pb | Ni | Fe | Zn |
| Cu-Ni | 88.6 min | 1.0 max | .05 max | 9-11 max | 1.8 max | 1 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| Property |
Metric Units |
Imperial Units |
|---|---|---|
|
Melting Point (Liquidus) |
11,500°C |
21,000°F |
|
Melting Point (Solidus) |
11,000°C |
20,100°F |
|
Density |
8.94 gm/cm³ @ 20°C |
0.323 lb/in³ @ 68°F |
|
Specific Gravity |
8.94 |
8.94 |
|
Coefficient of Thermal Expansion |
17.1 x 10 -6 / °C (20-300°C) |
9.5 x 10 -5 / °F (68-392°F) |
|
Themal Conductivity |
40 W/m. °K @ 20°C |
23 BTU/ft³/ft/hr/°F @ 68°F |
|
Thermal Capacity (Specific Heat) |
380 J/kg. °K @ 20°C |
0.09 BTU/lb/°F @ 68°F |
|
Electrical Conductivity (Annealed) |
5.26 microhm?¹.cm?¹ @ 20°C |
9.1% IACS |
|
Electrical Resistivity (Annealed) |
0.190 microhm.cm @ 20°C |
130 ohms (circ mil/ft) @ 68°F |
|
Modulus of Elasticity (tension) |
140 GPa @ 20°C |
20 x 10 6 psi @ 68°F |
|
Modulus of Rigidity (torsion) |
52 GPa @ 20°C |
7.5 x 10 6 psi @ 68°F |
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 Coil 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.
Choose Copper Nickel Coil Tubing from Ojas Pipes and Tubes for its superior seawater corrosion resistance, biofouling protection, and excellent thermal conductivity, making it ideal for marine, industrial, and coastal applications requiring long-lasting performance and reliability.
| Wall | Sizes ( O.D.) |
|---|---|
| .010 | 1/16″, 1/8″, 3/16″ |
| .020 | 1/16″, 1/8″, 3/16″, 1/4″, 5/16″, 3/8″ |
| .012 | 1/8″ |
| .016 | 1/8″, 3/16″ |
| .028 | 1/8″, 3/16″, 1/4″, 5/16″, 3/8″, 1/2″, 3/4″, 1″, 1 1/2″, 2″ |
| .035 | 1/8″, 3/16″, 1/4″, 5/16″, 3/8″, 7/16″, 1/2″, 16″, 5/8″, 3/4″, 7/8″, 1″, 1 1/4″, 1 1/2″, 1 5/8″, 2″, 2 1/4″ |
| .049 | 3/16″, 1/4″, 5/16″, 3/8″, 1/2″, 16″, 5/8″, 3/4″, 7/8″, 1″, 1 1/8″, 1 1/4″, 1 1/2″, 1 5/8″, 2″, 2 1/4″ |
| .065 | 1/4″, 5/16″, 3/8″, 1/2″, 16″, 5/8″, 3/4″, 7/8″, 1″, 1 1/4″, 1 1/2″, 1 5/8″, 1 3/4″, 2″, 2 1/2″, 3″ |
| .083 | 1/4″, 3/8″, 1/2″, 5/8″, 3/4″, 7/8″, 1″, 1 1/4″, 1 1/2″, 1 5/8″, 1 7/8″, 2″, 2 1/2″ ,3″ |
| .095 | 1/2″, 5/8″, 1″, 1 1/4″, 1 1/2″, 2″ |
| .109 | 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″ |
| .120 | 1/2″, 5/8″, 3/4″, 7/8″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/4″, 2 1/2″, 3″ |
| .125 | 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 3″, 3 1/4″ |
| .134 | 1″ |
| .250 | 3″ |
| .375 | 3 1/2″ |
Yes, we offer custom sizes for Copper Nickel Coil 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 Coil Tubing finds extensive use in marine, offshore, and industrial settings due to its exceptional resistance to seawater corrosion, erosion, and biofouling. It’s commonly utilized in seawater cooling systems, condensers, heat exchangers, refrigeration units, and hydraulic lines. Its formability and continuous coiling make it an excellent choice for installations that require long, uninterrupted lengths, minimizing joints and potential leak points. In shipbuilding, it plays a crucial role in fire suppression systems, ballast water lines, and bilge systems.
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