Copper Nickel Pipes
COPPERRY is copper nickel pipes manufacturer. our company is committed to providing copper nickel pipes at a reasonable price.
sales@copperry.com
sales@copperry.com
COPPERRY is copper nickel pipes manufacturer. our company is committed to providing copper nickel pipes at a reasonable price.
COPPERRY is a supplier of copper nickel pipes in China, established in 1997. Our company is close to Shanghai port, so it is easy to export.COPPERRY has a large stock of copper nickel pipe with complete size and wall thickness.
Copper nickel pipe is also known as CuNi pipe or cupronickel pipe. The main grades are CuNi90/10, CuNii70/30, C70600, C71500.
Copper nickel pipes are often used in seawater piping because of their resistance to seawater corrosion and marine biology adhesion. Copper nickel pipes have excellent thermal conductivity and are used in condensers and heat exchangers. It has good ductility and can be easily cold worked into fittings and flanges.
COPPERRY copper-nickel tubes are certified by CCS and DNV-GL. Third party testing can be done before shipment to ensure the quality meets the standard requirements.
Our copper nickel pipes are manufactured according to EEMUA 234 and DIN 86019 standards, ensuring they are of the highest quality. Your copper nickel pipes have been tested for chemical composition and physical hardness with satisfactory results.To make you trust, we will take photos and videos of the inspection process and send them to you before we ship.
DIN 86019 copper nickel pipes
DIN86019 is a German standard. It is to make industry regulations on seamless copper-nickel tube outer diameter wall thickness and so on. The copper-nickel tubes used in the shipbuilding industry often adopt this standard.
CuNi Pipes
The grades of cuni pipe are cuni90/10, cuni70/30. CuNi pipe is the simplified form of copper nickel pipe. If you want to know more, you can click learn more below.
C70600 pipes
Copper Nickel Pipes (EEMUA 234)
Copper nickel tubes are a combination of copper and nickel and also contain traces of iron, manganese and zinc.
It is resistant to salt water corrosion and marine life corrosion. Therefore, they are used in the piping of seawater. Seawater in warm climates has a high chloride content, and the use of copper nickel pies is resistant to chloride corrosion. Excellent thermal stability for use in heat exchanger seawater pipes.
Copper nickel pibes are too excellent for seawater corrosion resistance than steel tubes, so copper-nickel tubes are used for seawater pipes in shipbuilding.
The Copper Nickel Pipes PDF explains it in detail and is worth reading.
Our warehouse has many copper nickel pipes from 20 mm OD to 419 mm OD. If you have copper nickel pipes in a hurry and require them in stock, our large stock can accommodate you. your order, we can ship immediately.
Even if the number of copper nickel is small， we can do it for you.
If the quantity is too small, the copper nickel pipes 6m needs to be cut short for delivery.
CuNi90/10 and CuNi/30 pipes, C70600 pipes, and C71500 pipes. We have all these pipes in stock. We can supply them all to you.We regularly produce copper nickel pipes of these types and are experienced in their production.
COPPERRY’s copper-nickel smelting, billet making and copper nickel pipe drawing are all in China. The supply chain has the advantage of being a global leader. These determine that the copper nickel pipes supplied to you are very reasonably priced.
If you have any further questions or need additional information about copper nickel pipes, please contact us.
COPPERRY got a third party authority to test the copper nickel pipes. This organisation is the Shanghai Institute for Materials Research, which is the most authoritative non-ferrous metal testing organisation in China.
The picture below is the result of our copper nickel pipe testing.
We saw off a section of copper nickel pipe from the warehouse, and the testing organisation checked the chemical composition. The picture above shows the test results. The chemical composition of COPPERRY copper nickel pipes meets the standard.
We tested the elongation and tensile strength of copper nickel pipes. These two items are the most important for mechanical properties. The above test results elongation is 49.5; the standard specification is ≥ 30, and the test is qualified. The tensile strength test result is 348Mpa; the standard specification is ≥300Mpa, and the test is qualified.
Shipbuilding project for the Thai Navy, Copper nickel pipes supplied by COPPERRY in 2022. We inspect 57*1.5 CuNi 90/10 tube OD and wall thickness before shipment. So we will inspect the copper nickel pipes again before shipment to our customers. The deviation of outer diameter size is ±2%, and the wall thickness deviation is ±5%.
Brazilian oil offshore customer. They need copper-nickel tubes of the European standard EEMUA234. Because of our good service, we gained their trust. They asked the delivery time is 30 days. Because they are very urgent, we prioritise the production of this order.
We have been doing copper nickel pipes for 20 + years and have a lot of experience. Below are the questions our customers often encounter, we have compiled them, and they will help you.
Below are the dimensions and wall thicknesses of copper nickel pipes for European standards. Our customers often use copper-nickel tubes of this standard. You can ask the professional us if you have questions about the dimensions.
Chemical Composition % | Contaminants % ≤ | ||||||||
Ni | Fe | Mn | Cu | Pb | S | C | Zn | P | other |
10.0~11.0 | 1.5~1.8 | 0.6~1.0 | rem | 0.01 | 0.005 | 0.05 | 0.02 | 0.02 | 0.20 |
mode | yield strength RP0.2 MPa | tensile strength Rm MPa | Brinell hardness HB | Elongation A% |
M | ≥100 | ≥300 | ≥70 | ≥30 |
copper nickel pipes can be welded using traditional techniques, such as argon arc welding. (ps: the welding process must be protected by argon gas in the tube).
The correct welding procedure must be followed, CuNi 70/30 wire must be used as filler material, and the welder should preferably be experienced.
Copper nickel pipe soldering tutorial you can watch this video.
Other materials, such as carbon steel or PVC are cheaper, whereas the initial cost of copper nickel pipes may be higher.
If the vessel has a service life of 20 years, then the copper nickel pipes will not have to be repaired and replaced during those 20 years. In the long run, the benefits of copper nickel pipe often outweigh the upfront costs.
The labour costs of replacing and repairing seawater pipes later on are high, with copper nickel pipes you can save on later maintenance costs.
Copper nickel pipes offer excellent durability, low maintenance and extended service life. Over time, significant cost savings can be made.
Copper nickel pipes contain copper and nickel, which are precious metals and expensive on the market.
This is the fundamental reason why copper nickel pipes are expensive.
You think copper nickel pipe is expensive because you are comparing it to stainless steel pipe.
But in seawater, copper nickel pipes are superior to stainless steel tubes in terms of corrosion resistance.
Our factory is in Shanghai, China, close to Shanghai Pudong Airport.
We offer seamless and welded copper nickel pipes to meet your specific needs.
The copper nickel pipes we can manufacture are available in C70600 and C71500 alloys.
The price of CuNi90/10 pipe can be estimated based on the international market price of copper and nickel for the day (this price is available online). The calculation is 90% of the day’s copper price, plus 10% of the day’s nickel price. To this, the cost of processing is added to give the ex-works price of CuNi90/10 pipe.
Please note that these prices fluctuate and to get the most accurate and up-to-date prices for CuNi pipe, please feel free to contact us. We will be happy to provide you with a detailed quotation.
We can produce seamless CuNi90/10 pipes from OD 20mm to OD 710mm (Larger than 419mm is welded pipe).
We can produce seamless CuNi70/30 pipes from OD 20mm to OD 324mm.
In simple terms, CuNi90/10 fittings have 90% copper and 10% nickel.
While CuNi70/30 fittings have 70% copper and 30% nickel， there is a difference between the two.
We ensure it’s the perfect size, thickness, and composition for your home!
If you find any quality problems after we’ve sent them out.
Don’t worry because our team can take care of replacements immediately.
Our usual third party testing institute is the Shanghai Institute of Materials Research.
This is the leading materials testing institute in China. This institute can test the chemical composition and mechanical properties of copper nickel pipes and issue a report.
If you are not sure, you can hire QC personnel to carry out the test.
You can tell us when the third party personnel will come to test the copper nickel pipes.
We will be very cooperative with their testing of copper nickel pipes.
Yes, you can bend copper nickel alloy pipes. However, you need to place a mould inside the copper nickel pipe when bending, otherwise, the copper nickel pipe will crack and wrinkle.
Our customers have tried bending copper nickel pipes directly on the bending machine without using a mould or heating the pipe. The result was that the copper nickel pipes would crease when bent. Copper nickel pipes can be bent, but they require a specific mould. It is advisable not to bend them yourself and you should use an elbow where the copper nickel pipe needs to be bent.
The copper nickel oxide film is insoluble in seawater. Blocks seawater from coming into contact with the copper nickel alloy.
The oxide film prevents marine life from attaching to the copper nickel pipes. the oxide film is not conducive to the growth of marine life.
In seawater, contact copper-nickel tubes and steel results in potential difference corrosion.
Plastic nylon gaskets should separate copper nickel tubes and other metals.
Based on our customers’ experience. air bubbles can speed up the corrosion of copper nickel pipes.
The service life of copper nickel pipes is reduced in seawater with a high sediment content.
Mud and sand speed up the corrosion of copper-nickel tubes.
The thin wall thickness, copper-nickel tubes are prone to corrosion and leakage in mud.
According to studies, the service life of copper nickel pipes is more than 20 years.
It can be said that the service life of copper-nickel pipes is longer than the life of a ship.
Seawater pipes can last a lifetime without replacement.
Stainless steel tubes are not as corrosion-resistant as copper nickel.
In seawater, copper nickel pipes have a much longer service life than stainless steel.
Want seawater pipes to be replaced without maintenance later, you choose copper nickel pipes.
The advantage of stainless steel is that it is cheaper than copper nickel pipes.
You can also email us for a quick response.
Email：sales@copperry.com
Address: No. 7146, Hunan Road, Pudong New Area, Shanghai, China
