CuNi 70/30 Seamless Pipe ASME SB111 C70600 Marine Grade for Heat Exchanger
CuNi 70/30 Seamless Pipe ASME SB111 C70600 Marine Grade for Heat Exchanger
1. Product Description
Copper nickel pipe is a seamless or welded tube based on copper with nickel as the primary alloying element. Typical grades are C70600 (CuNi10Fe1Mn, i.e., 90/10) and C71500 (CuNi30Fe1Mn, i.e., 70/30). This alloy is widely used in marine, power, and chemical industries, offering a good balance between strength and corrosion resistance.
2.Product Applications
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Shipboard ballast, cooling, fire fighting and fresh water piping systems
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Heat exchanger tube bundles in desalination plants
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Process piping on offshore oil platforms
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Condensers and feedwater heaters in power plants (nuclear & thermal)
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Corrosion-resistant medium transfer in chemical industry
3.Product Functions
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Safely convey seawater, fresh water, oil, gas and mild acidic media
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Achieve efficient heat transfer in heat exchangers
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Withstand high working pressure (design pressure up to 6.4 MPa and above)
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Inhibit marine microorganism adhesion and growth on the inner pipe wall
4.Key Product Parameters
| Parameter | Value Range / Requirement |
| Common Grades | C70600 (90/10), C71500 (70/30) |
| Outer Diameter Range | 6 mm – 610 mm |
| Wall Thickness Range | 0.5 mm – 50 mm |
| Supplied Length | Random length (3–12 m) or fixed length |
| Density (20°C) | 8.9 g/cm³ (C70600) / 8.94 g/cm³ (C71500) |
| Melting Range | 1100–1240 °C |
| Tensile Strength (min.) | 300 MPa (C70600) / 450 MPa (C71500) |
| Yield Strength (min.) | 105 MPa (C70600) / 170 MPa (C71500) |
| Elongation after fracture (min.) | 30% (C70600) / 25% (C71500) |
| Thermal Conductivity (20°C) | 40 W/(m·K) (C70600) / 29 W/(m·K) (C71500) |
| Hardness (HB) max. | 90 (C70600) / 125 (C71500) |
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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