sales@copperry.com

CuNi Pipes: Understanding CuNi 90/10 and CuNi 70/30

cuni pipe

Table of Contents

CuNi pipes, composed of copper and nickel, are known for their excellent resistance to seawater corrosion and marine biofouling. Our company manufactures CuNi 90/10 seamless pipes up to a maximum diameter of 457mm and CuNi 70/30 pipes up to 219mm. These pipes are widely used in naval ships and marine engineering.

Introduction

Are you looking for durable and corrosion-resistant piping solutions for marine applications? CuNi pipes might be what you need. These pipes, available in CuNi 90/10 and CuNi 70/30 varieties, are specially designed to withstand the harsh marine environment. In this article, we will explore the differences between CuNi 90/10 and CuNi 70/30 pipes and highlight the capabilities of our company’s manufacturing processes.

Understanding CuNi 90/10 Pipes

CuNi 90/10 pipes consist of 90% copper and 10% nickel, offering excellent resistance to seawater corrosion and marine biofouling. These pipes are essential for various marine applications, including naval ships and marine engineering.

CuNi90/10 pipe
CuNi90/10 Pipe

Manufacturing Challenges:

Producing ultra-large diameter and ultra-thick wall CuNi 90/10 pipes is challenging. It requires advanced equipment and skilled personnel. Our company, equipped with a 5500-ton extrusion press, excels in manufacturing large diameter and thick-walled CuNi 90/10 pipes. This capability allows us to produce high-quality pipes efficiently.

cuni 90 10 pipe2
CuNi 90/10 Pipe2

Achievements:

Successfully produced a φ419*9mm (diameter 419mm, wall thickness 9mm) CuNi 90/10 tube for marine applications.

Our company can produce CuNi 90/10 seamless pipes with outer diameters ranging from 8mm to 457mm.

For welded CuNi 90/10 pipes, we can achieve an outer diameter of up to 810mm.

cuni 90 10 pipe 1
CuNi90/10 Pipe1

Understanding CuNi 70/30 Pipes

CuNi 70/30 pipes, also known as C1500 or CuNi30Fe1.6Mn pipes, are harder than CuNi 90/10 pipes and offer superior resistance to seawater corrosion. These pipes are ideal for more demanding marine environments.

Manufacturing Capabilities:

The high hardness of CuNi 70/30 pipes makes them challenging to draw into shape. Typically, these pipes have an outer diameter under 108mm. However, our company has advanced to produce CuNi 70/30 tubes with outer diameters of 133mm, 159mm, and up to a maximum of 219mm with wall thicknesses ranging from 4-6mm.

cuni 70 30 pipe
CuNi 70/30 Pipe

Conclusion

CuNi pipes, particularly CuNi 90/10 and CuNi 70/30, are crucial for marine applications due to their excellent corrosion resistance and durability. Our company stands out in the industry by successfully manufacturing large diameter and thick-walled CuNi pipes, meeting the highest standards.

If you have any questions or need further information about our CuNi pipes, please feel free to comment below.

Picture of Alan

Alan

Hi,I am the author of these articles. Have been working on copper nickel fittings for 11+ years. Have served 100+ shipyards and equipment plants worldwide with copper-nickel materials. I like to write articles on the issues I communicate with my customers, I hope it will be helpful to you.We are professionals, you can also email me at sales@copperry.com

Get an instant quote from our most experienced consultants.

Let's have a chat

Get a free catalog