C71500 CuNi 70/30 Welded Pipe Anti-corrosion ASTM B466 Industrial Tube
C71500 CuNi 70/30 Welded Pipe Anti-corrosion ASTM B466 Industrial Tube
1. Product Description
Copper nickel pipe is a copper‑nickel alloy tube with copper as the base and nickel as the primary alloying element. Common standards are ASTM B466 / B467 (US) or GB/T 26291 (China). Typical grades are C70600 (90Cu-10Ni) and C71500 (70Cu-30Ni). This product is specially designed for marine, chemical and power industries, offering a good combination of mechanical properties and corrosion resistance.
2.Product Applications
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Marine & offshore: ballast, cooling and fire water piping systems
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Desalination: evaporator and heat recovery tube bundles
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Power industry: condensers, oil coolers, air coolers
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Chemical & petrochemical: transport of acetic acid, seawater, brine etc.
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Seawater systems in LNG terminals
3.Product Advantages
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Excellent corrosion resistance in both flowing and stagnant seawater
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Self‑forming dense oxide film; resistant to impingement and cavitation corrosion
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Significant anti‑biofouling performance, reducing pipeline maintenance frequency
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Good workability: cold bending, hot bending, expanding, welding
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High erosion resistance, especially suitable for high‑velocity seawater (3–5 m/s)
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Lower life‑cycle cost than stainless steel and titanium in certain applications
4.Key Product Parameters
| Parameter | C70600 (90/10) | C71500 (70/30) |
| Copper (%) | ≥ Balance | ≥ Balance |
| Nickel (%) | 9.0 – 11.0 | 29.0 – 33.0 |
| Iron (%) | 1.0 – 1.8 | 0.4 – 1.0 |
| Manganese (%) | ≤ 1.0 | ≤ 1.0 |
| OD Range (mm) | 6 – 610 | 6 – 610 |
| WT Range (mm) | 0.5 – 50 | 0.5 – 50 |
| Density (g/cm³) | 8.9 | 8.94 |
| Tensile Strength (MPa) | ≥ 300 | ≥ 450 |
| Yield Strength (MPa) | ≥ 105 | ≥ 170 |
| Elongation (%) | ≥ 30 | ≥ 25 |
| Thermal Conductivity (W/(m·K)) | 40 | 29 |
| Expansion Coefficient (10⁻⁶/K) | 17 | 16 |
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.
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