TOBO INDUSTRIAL (SHANGHAI) CO., LTD
| Supply Ability | 10Ton/Month |
| Product Name | Factory Direct CuNi 70/30 Copper Nickel Pipe, Sch40/Sch80 Seamless |
| Joiningmethods | Welding, brazing, soldering |
| Weldability | Good |
| Product Type | C71500 |
| Applications | Marine engineering, desalination plants, heat exchangers |
| Yield Strength | High |
| Tensile Strength | High |
| Dia | 3mm-800mm/custom |
| Delivery Time | 15-30 Workdays |
| Diameterrange | Typically 1/2 inch to 24 inches |
| Diameter | 1/2 Inch - 24 Inch |
| Payment Terms | T/T, Western Union |
| Material | CUNI 70/30 |
| Outer Diameter | 6mm-60 Mm |
| State | Hard |
| Packaging Details | Standard Shipping Package |
| Temperature Range | Customizable |
| Specification | 2-460 |
| Package | Standard package.Ten pieces per carton. |
| Model Number | Copper Nickel Pipe |
| Certification | ISO/TUV/SGS |
| Place of Origin | Shanghai,China |
| Brand Name | TOBO |
View Detail Information
Explore similar products
Manufacturer Seamless Copper Tube ASTM B111 6" SCH40 CUNI 90/10 C70600 C71500
Round Cuni9010 C70600 Seamless Pipe 1"-24" STD API SGS
3" STD Seamless Copper Nickel Pipe CUNI90/10 Round UNS C70600
C71500 Cupronickel Pipe Seamless 1/2" SCH40 Pipe
Product Specification
| Supply Ability | 10Ton/Month | Product Name | Factory Direct CuNi 70/30 Copper Nickel Pipe, Sch40/Sch80 Seamless |
| Joiningmethods | Welding, brazing, soldering | Weldability | Good |
| Product Type | C71500 | Applications | Marine engineering, desalination plants, heat exchangers |
| Yield Strength | High | Tensile Strength | High |
| Dia | 3mm-800mm/custom | Delivery Time | 15-30 Workdays |
| Diameterrange | Typically 1/2 inch to 24 inches | Diameter | 1/2 Inch - 24 Inch |
| Payment Terms | T/T, Western Union | Material | CUNI 70/30 |
| Outer Diameter | 6mm-60 Mm | State | Hard |
| Packaging Details | Standard Shipping Package | Temperature Range | Customizable |
| Specification | 2-460 | Package | Standard package.Ten pieces per carton. |
| Model Number | Copper Nickel Pipe | Certification | ISO/TUV/SGS |
| Place of Origin | Shanghai,China | Brand Name | TOBO |
| High Light | CuNi 70/30 copper nickel pipe ，Sch40 seamless copper nickel pipe ，Sch80 copper nickel pipe with warranty | ||
Factory Direct CuNi 70/30 Copper Nickel Pipe, Sch40/Sch80 Seamless
1.Product Introduction
Copper nickel pipe is a copper‑nickel alloy tubing produced in grades 90/10 (C70600) and 70/30 (C71500), with iron and manganese added to enhance strength and corrosion resistance. It is supplied as seamless or welded pipe, conforming to ASTM, ASME, EN and JIS standards. Known for its reliability in saline water environments, it is extensively specified for maritime and industrial fluid systems.
2.Product Advantages
Resists corrosion in seawater, brackish water, and industrial brines over a wide temperature range.
Biofouling resistance – surface copper ions naturally deter marine growth, reducing cleaning frequency.
Withstands high‑velocity flow and particle‑laden fluids without rapid erosion.
Can be readily welded, bent, and machined using standard techniques.
Long history of trouble‑free operation, with many systems still in service after 50+ years.
No susceptibility to chloride stress‑corrosion cracking, unlike many stainless steels.
Lighter than carbon steel for same pressure rating, lowering support costs.
Offers a cost‑effective alternative to titanium and nickel‑base superalloys.
3.Product Applications
Shipboard systems – seawater cooling, fire mains, ballast, and bilge lines.
Offshore platforms – deck piping, riser cladding, and subsea control lines.
Desalination plants – evaporator bundles, brine heaters, and interconnecting pipework.
Power stations – condenser tubing and auxiliary cooling water circuits.
Chemical and petrochemical plants – heat exchanger tubing and process lines.
Marine renewable energy – cooling loops for tidal and wave energy devices.
Aquaculture – large‑diameter seawater supply pipes and cage frameworks.
Transportation – hydraulic brake tubing in vehicles and aircraft ducting.
4.Key Product Parameters
| Item | 90/10 (C70600) | 70/30 (C71500) |
| Main Composition (wt%) | Cu 88.6 min, Ni 9-11, Fe 1.0-1.8, Mn ≤1.0 | Cu 68.5-71.5, Ni 29-31, Fe 0.4-1.0, Mn ≤1.0 |
| Tensile Strength, min (MPa) | 303 | 350 (typ.) |
| Yield Strength, min (MPa) | 110 (as drawn) | 120 (typ.) |
| Elongation, min (%) | 42 | 35 |
| Modulus of Elasticity (GPa) | 140 | 140 |
| Thermal Conductivity (W/m·K) | 50 | 29 |
| Density (g/cm³) | 8.90 | 8.95 |
| Melting Range (°C) | 1080-1120 | 1170-1240 |
| Electrical Resistivity (µΩ·cm) | 5.7 | 7.5 |
| Seamless OD (mm) | 6 – 159 | 6 – 159 |
| Welded OD (mm) | up to 419 | up to 419 |
| Seamless WT (mm) | 0.5 – 8.0 | 0.5 – 8.0 |
| Welded WT (mm) | up to 10.0 | up to 10.0 |
| Standard Lengths | 6m, 12m, or custom | 6m, 12m, or custom |
FAQ
1. Are you trading company or manufacturer ? We are manufacturer ,You can see the certification.
2. How long is your delivery time? Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity. 3. Do you provide samples ? is it free or extra ? Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ? Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
TOBO INDUSTRIAL (SHANGHAI) Co., Ltd. is a professional supplier of pipeline products, located in Shanghai, with convenient transportation and beautiful environment. Dedicated to strict quality control and customer service. Our experienced staff can readily discuss your requirements to ensu... TOBO INDUSTRIAL (SHANGHAI) Co., Ltd. is a professional supplier of pipeline products, located in Shanghai, with convenient transportation and beautiful environment. Dedicated to strict quality control and customer service. Our experienced staff can readily discuss your requirements to ensu...
Get in touch with us
Leave a Message, we will call you back quickly!