TOBO INDUSTRIAL (SHANGHAI) CO., LTD
| Supply Ability | 10 Ton/Month |
| Manufacturingstandards | ASTM B111, ASTM B466, ASTM B466M |
| Thermalconductivity | High thermal conductivity suitable for heat exchangers |
| Secondary Or Not | Non-secondary |
| Delivery Time | 15-30 Workdays |
| Materialcomposition | Copper-Nickel Alloy (commonly 90/10 or 70/30 Cu/Ni) |
| Yield Strength | High |
| Durability | High |
| Payment Terms | T/T, Western Union |
| Weldability | Good |
| Package | Standard Seaworthy Package |
| Usages | Construction Decoration |
| Feature | Excellent resistance to dry fluorine |
| Ductility | Good |
| Density | 8.9 g/cm³ |
| Product Nanme | Annealed CuNi 70/30 Welded Tube ASME SB466 Nickel Copper Alloy for Bending |
| Head Code | Round |
| Packaging Details | Standard Shipping Package |
| Keyword | Copper Pipes Fittings |
| Standard | ASTM |
| Model Number | Copper Nickel Pipe |
| Brand Name | TOBO |
| Certification | ISO/TUV/SGS |
| Place of Origin | Shanghai,China |
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Product Specification
| Supply Ability | 10 Ton/Month | Manufacturingstandards | ASTM B111, ASTM B466, ASTM B466M |
| Thermalconductivity | High thermal conductivity suitable for heat exchangers | Secondary Or Not | Non-secondary |
| Delivery Time | 15-30 Workdays | Materialcomposition | Copper-Nickel Alloy (commonly 90/10 or 70/30 Cu/Ni) |
| Yield Strength | High | Durability | High |
| Payment Terms | T/T, Western Union | Weldability | Good |
| Package | Standard Seaworthy Package | Usages | Construction Decoration |
| Feature | Excellent resistance to dry fluorine | Ductility | Good |
| Density | 8.9 g/cm³ | Product Nanme | Annealed CuNi 70/30 Welded Tube ASME SB466 Nickel Copper Alloy for Bending |
| Head Code | Round | Packaging Details | Standard Shipping Package |
| Keyword | Copper Pipes Fittings | Standard | ASTM |
| Model Number | Copper Nickel Pipe | Brand Name | TOBO |
| Certification | ISO/TUV/SGS | Place of Origin | Shanghai,China |
| High Light | Annealed CuNi 70/30 welded tube ，Nickel copper alloy bending tube ，ASME SB466 copper nickel pipe | ||
Annealed CuNi 70/30 Welded Tube ASME SB466 Nickel Copper Alloy for Bending
1.Product Description
Copper-nickel pipe is a seamless or welded tubular product made from copper-nickel alloy, primarily composed of copper (Cu) and nickel (Ni), with minor additions of iron (Fe) and manganese (Mn) to enhance mechanical properties and corrosion resistance. The most common grades are 90/10 (CuNi 90/10, UNS C70600) and 70/30 (CuNi 70/30, UNS C71500). These pipes are manufactured according to international standards such as ASTM B466, B467, B111, and EN 12451, offering excellent dimensional accuracy, uniform wall thickness, and superior surface quality. They are available in a wide range of diameters and schedules to meet diverse engineering requirements.
2. Product Applications
Copper-nickel pipes are widely used in marine engineering, offshore oil and gas platforms, shipbuilding (hull piping, cooling water systems, fire protection systems), seawater desalination plants, power generation stations (condenser and heat exchanger tubes), chemical processing industries, and coastal infrastructure. They are the preferred material for conveying seawater, brine, and other corrosive fluids, as well as for high-temperature steam and hydraulic systems requiring reliable anti‑fouling and biofouling resistance.
3. Product Advantages
Superior corrosion resistance – exceptional resistance to seawater, brackish water, chloride‑induced pitting, stress corrosion cracking, and erosion‑corrosion.
Excellent biofouling resistance – naturally inhibits marine organism adhesion, reducing maintenance and cleaning frequency.
High strength and ductility – good mechanical properties at ambient and elevated temperatures, with easy bending, flanging, and welding.
Long service life – proven track record of 30+ years in marine environments with minimal degradation.
Low magnetic permeability – suitable for non‑magnetic applications.
Good thermal conductivity – efficient heat transfer for heat exchangers.
Fabrication friendly – compatible with standard welding, brazing, soldering, and machining.
4.Key Technical Parameters
| Parameter | 90/10 (C70600) | 70/30 (C71500) |
| Chemical Composition | Cu: 88.5–90.5%, Ni: 9.0–11.0%, Fe: 1.0–1.8%, Mn: ≤1.0% | Cu: 68.5–70.5%, Ni: 29.0–31.0%, Fe: 0.4–1.0%, Mn: ≤1.0% |
| Density | 8.94 g/cm³ | 8.94 g/cm³ |
| Melting Range | 1,100–1,150°C | 1,170–1,240°C |
| Tensile Strength (min) | 290 MPa | 485 MPa |
| Yield Strength (0.2% offset, min) | 105 MPa | 175 MPa |
| Elongation (min) | 30% (in 50 mm) | 30% (in 50 mm) |
| Hardness (Rockwell B) | 65–80 HRB | 75–90 HRB |
| Electrical Conductivity | ~7% IACS | ~4.5% IACS |
| Thermal Conductivity (20°C) | ~45 W/(m·K) | ~29 W/(m·K) |
| Coeff. of Thermal Expansion (20–300°C) | ~16.2×10⁻⁶/°C | ~15.8×10⁻⁶/°C |
| Operating Temp. Range | –200°C to +300°C | –200°C to +350°C |
| Standard Dimensions | OD 6.0–400.0 mm; Wall 0.5–30.0 mm; Length up to 12 m (or custom) | |
| Manufacturing Standards | ASTM B466/B467/B111, EN 12451, JIS H3300, etc. | |
| Product Forms | Seamless or welded (straight or coiled) |
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...
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