CuNi 90/10 Pipes

Shihang is the Premier Manufacturer of CuNi 90/10 Pipes in China.

  • Complete specifications
  • Best quality CuNi 90/10 pipes
  • 100% meets the standards

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Shihang CuNi Tube
cuni9010 pipes
ASTM B466 UNS C70600 CuNi 90/10 Pipes

Shihang is your trusted manufacturer for all your ASTM B466 UNS C70600 CuNi 90/10 pipe needs.

cuni9010 pipes
ASME SB466 UNS C70600 CuNi 90/10 Pipes

If you are looking for the best quality ASME SB466 UNS C70600 CuNi 90/10 pipes at the best prices, Shihang is the best choice.

cuni9010 pipes
CuNi 90 10 Pipe Schedule

For cuni 90/10 pipe schedule, the standrad is ASME B36.19M. There are cuni 90/10 pipe schedule 10s, cuni 90/10 pipe schedule 40s, cuni 90/10 pipe schedule 80s.

cuni9010 pipes
ANSI B36.10 CuNi 90/10 Pipes

If you desire a long-lasting business partner for you CuNi 90/10 pipes and other related business, you can trust Shihang manufacturing factory.

Related Products of CuNi 90/10 Pipes
All of our ANSI B36.19M CuNi 90/10 Pipes is manufactured in different sizes and shapes.
You can get EEMUA 144 CuNi 90/10 Pipes as per client’s specifications.
Each and every EEMUA 234 CuNi 90/10 Pipes are fully tested to international standards.
Shihang ASME B36.19 CuNi 90/10 Pipes is tightly regulated before we ship to our clients.

Send Your Inquiry on Shihang CuNi 90/10 Pipes Now.

  • 100% Meet the Standard
  • Fast Delivery
  • EN 10204 3.1 Certificate
  • Third Party Inspection Available

Shihang CuNi 90/10 Pipes

CuNi 90/10 pipes is one kind of copper nickel pipes.

Shihang CuNi 90/10 Pipes are 90% copper and 10% nickel alloy. These are made up of Cu, Ni, Fe, Pb, Mn, Zn, S, and P in different proportions. All of our CuNi 90/10 pipes are complaint to DIN 86019, ASME B36.19M, EEMUA 144, and more.

As a leading manufacturer of CuNi 90/10 pipes, Shihang can custom make your CuNi 90/10 pipes to different shapes and sizes and with any clients’ specifications.

You can check 90 10 cuni pipe sizes, cuni 90 10 pipe dimensions and  cuni 90 10 pipe weight as bleow.

Cuni 9010 Pipe Drawing

Outside diameter of pipe DIN86019 EEMUA 144
10 bar 14 bar 16 bar 20 bar
ØD Wall Theoretical Wall Theoretical Wall Theoretical Wall Theoretical
thickness weight thickness weight thickness weight thickness weight
nominal actual actual actual actual actual
inch ND mm mm Kg/m mm Kg/m mm Kg/m mm Kg/m
0.125 10 1 0.26 1 0.26 1 0.26 1 0.26
0.25 12 1 0.31 1 0.31 1 0.31 1 0.31
0.38 10 16 1 0.42 1 0.42 2 0.79 2 0.79
0.5 15 20 1 0.53 1 0.53 2 1.01 2 1.01
0.75 20 25 1.5 0.99 1.5 0.99 2 1.3 2 1.3
1 25 30 1.5 1.2 1.5 1.2 2.5 1.93 2.5 1.93
1.25 32 38 1.5 1.54 1.5 1.54 2.5 2.5 2.5 2.5
1.5 40 44.5 1.5 1.81 1.5 1.81 2.5 2.95 2.5 2.95
2 50 57 1.5 2.34 1.5 2.34 2.5 3.83 2.5 3.83
2.5 65 76.1 2 4.16 2 4.16 2.5 5.17 2.5 5.17
3 80 88.9 2 4.88 2.5 6.07 2.5 6.07 2.5 6.07
4 100 108 2.5 7.41 2.5 7.41 3 8.85 3 8.85
5 125 133 2.5 9.16 3 10.95 3 10.95 3 10.95
6 150 159 2.5 10.99 3 13.14 3 13.14 3.5 15.29
7 175 193.7 2.5 13.43 3.5 18.7 3 16.07 3.5 18.7
8 200 219.1 3 18.21 3.5 21.19 4 24.17 4.5 27.12
10 250 267 3 22.24 4 29.55 4.5 33.18 5.5 40.39
12 300 323.9 4 35.94 5 44.78 5.5 49.18 7 62.3
14 350 368 4 40.89 5.5 56 6.5 65.99 8 80.89
16 400 419.1 4 46.62 6 69.6 7 81 9 103.64

If you want to get more cuni 90/10 size, dimension and weight detail, you can go to DIN 860109 , EEMUA 144 , EEMUA 234 and ASME B36.19M pages.

cuni 9010 pipe drawing

Shihang CuNi 90/10 pipes are dependable with excellent corrosion resistance. That is why CuNi 90/10 pipes are trusted in marine saltwater environments.

cuni pipes


Additionally, our CuNi 90/10 pipes have an important addition of manganese and iron for maintaining good corrosion resistance. They also offer high oxidation resistance and high fabricability in moist environments which makes them effective for light-duty condensers, evaporators, and sugar-making factories.

Due to its toughness and high ductility, Shihang CuNi 90/10 pipes are popular grade for architectural, marine, and industrial applications.

Shihang CuNi 90/10 pipes vary from CN102, C70600, and CW352. These grades are most commonly required within the offshore, marine, petrochemical, chemical, and shipbuilding industries. It is also used for handling seawater in all kinds of cooling plants and heat exchangers.

Shihang is an ISO 9001:2015 certified company that offers excellent quality CuNi 90/10 pipes to our valued customers. We stock a complete range of CuNi 90/10 pipes to accommodate your needs at the most competitive prices.

Shihang CuNi 90/10 pipes manufacturing production is tightly regulated. Each and every pipe are fully tested to international standards.

Wide selection of CuNi 90/10 pipes is available for you!

Contact our team today for all your CuNi 90/10 pipe needs.

CuNi 90/10 Pipes: The Ultimate FAQ Guide

In this guide, you will find all information about CuNi 90/10 Pipes.

So, read this guide before importing copper nickel pipes from China.

What is a CuNi 90/10 Pipe?

This refers to a pipe consisting mainly of copper and nickel alloy alongside other elements.

Other compounds present include manganese and iron, which increase its anti-corrosion and strength properties.

Its ductility and toughness enhance its use in architectural, marine, and Industrial sectors.

CuNi 90/10 Pipes are available in Which Types?

Copper nickel pipe

 CuNi 90/10 pipe

There are two main types of CuNi 90/10 pipes.

That is:

· Seamless CuNi 90/0 Pipes

Extrusion is the primary fabrication method of seamless CuNi 90/10 pipes.

You can also use mandrel mill, plug rolling mill, or forging method to manufacture Seamless CuNi 90/10 pipes.

This type does not have any joints, which prevents them from leakages while ensuring a tight connection of your piping system.

They are suitable for use in systems that have a high operating temperature and pressure.

There structure and strength are uniforms along its cross-section, ensuring there is smooth fluid flow.

Besides, the quality of seamless CuNi 90/10 pipes offer unique features that guarantee the durability of your application.

They are, however, relatively expensive compared to welded CuNi 0/10 pipes.

· Welded CuNI 90/10 Pipes

Welded CuNi 90/10 pipes are relatively cheaper and easy to find in most applications.

Their manufacturing process involves cutting a circular part using point pressing, continuous rolling, or plate rolling.

The next step is to weld the circular section with the use of high frequency, electric resistance, or submerged arc welding.

Their use is common in applications whose operating temperature and pressure are low.

Their structure uniformity and strength depend on the welding and rolling accuracy

They are, however, prone to leakages if there is no proper welding of the joints.

Their maintenance cost is also high due to the regular maintenance of the welded sections.

What are the CuNi 90/10 Pipe End Configurations?

Pipe end configuration plays a critical role when you are designing your piping system.

Ideally, CuNi 90/10 pipes have three types of end configuration:

CuNi 90-10 Pipe

CuNi 90-10 Pipe

· Plain End Configuration

This type of end configuration is one whose end cut is perpendicular to your pipe run.

The use of this pipe is common when making a Socket weld or slip-on flange connection.

· Threaded End Configuration

Threaded end configurations are also referred to as screwed end connections.

Threaded end configuration features tapered grooves cut on the ends of your CuNi 90/10 pipes.

The common application of such a pipe end is on a piping system that is three inches or smaller.

Also, the tapered grooves are usually 3/4″ per foot.

Threaded end pipes are available as either female or male.

The cutting of male threaded pipes is towards the pipe’s external surface.

The cutting of a female threaded pipe is towards the pipe’s internal surface.

Connecting a threaded pipe involves pulling the two ends together.

Thread engagement is the puling distance between the two ends.

· Beveled End Configuration

A beveled end configuration has its end not perpendicular to any piping surface.

The most standard angle for the beveled end configuration is 37.5°.

However, you can have other angles for your beveled end configuration.

The common usage of this configuration is when you are welding your piping system.

Where can you use CuNI 90/10 pipes?

CuNi 90/10 pipe usage is common in applications such as:

  • Salty water plants
  • Hot water piping system
  • Heat exchanger systems
  • Cooling plants
  • Evaporator pump and tubes
  • Marine hardware
  • Power steering systems
  • Condenser plates

What are the Properties of CuNI 90/10 pipes?

The unique properties of CuNi 90/10 pipes facilitate their functions in different applications.

These are:

Cupronickel pipe

Cupronickel pipe

  • Low thermal expansion rate. This allows for use in a piping application that experiences uneven expansion rates.
  • Anti-corrosion
  • Easy modification to fit your specifications.
  • High ductility
  • A high rate of thermal conductivity.
  • They have an aesthetic appeal.
  • Excellent anti-fouling properties

What are the Benefits of using CuNi 90/10 pipes?

Using CuNi 90/10 pipes offers the following benefits to your application:

  • They have a simple installation process. You don’t need an expert to install your CuNi 90/10 pipes.
  • They last longer due to their unique features such as anti-corrosion and fouling resistance.
  • They allow for use in an uneven temperature piping system since they have stable temperatures.
  • They are leak-proof, which minimizes fluid wastage and ensures effective fluid flow.

What is the Standard size of CuNi 90/10 Pipes?

Most CuNi 90/10 pipes have an ideal size of 6M.

However, if you have a credible manufacturer, you may ask for customization of the size to fit your application.

This is possible while still meeting the available standards.

What is the Manufacturing Process of CuNi 90/10 pipes?

There are varying fabrication process depending on the CuNi 90/10 pipe type.

That means, the production of seamless CuNi 90/10 pipes can use either of the following techniques:

1. Mandrel Mill Procedure

Forming CuN 90/10 pipes using a mandrel mill method involves the use of a rotary heating surface to heat the CuNi billets.

After that, use a piercer to form a hollow structure on the hot CuNi billet.

Once you have the hollow structure, you have to roll it to minimize its external width and the wall’s thickness.

The outcome is the formation of different mother tubes that you use a stretch reducer to heat according to different available standards.

2. Plug Rolling Mill Method

CuNi 90/10 pipes that have large diameter use this manufacturing method.

Plug rolling mill method involves the formation of a forged die that has a larger diameter compared to the CuNi 90/10 pipes you want to fabricate.

The next step is to place hot CuNi 90/10 billets into the die and using a hydraulic press to form the pipes.

These pipes then go through available finishing options before inspection of the final quality and packaging.

The packaging material should consider the abrasion effect on the CuNi 90/10 as well as the shipment conditions.

· Forging Method

This method involves heating of CuNi billets before passing them to a die.

After that, a hydraulic press forms the CuNi 90/10 pipes from the billets.

The final step involves inspection of the quality of CuNi 90/10 pipes a packaging them in a secure package.

· Extrusion Method

The extrusion method involves passing CuNi billets through heat and putting it in a die.

After that, a hydraulic ram pushes it through the piercing mandrel.

The CuNi billet forms the pipes while moving through the mandrel before passing through the necessary surface finishing option.

The last step involves packaging the CuNi 90/10 pipes in proper packaging materials ready for shipment.

Such packaging material should take into consideration the abrasion of the CuNi 90/10 pipes.

The manufacturing of welded CuNi 90/10 pipes involves cutting off the CuNi 90/10 circular section.

This is by using a rolling machine and transforming the circular section by using a top roller.

Alternatively, there is the application of UO method to form the circular part.

In this method, you start by creating a U form followed by the O cross-section part.

There is also the use of continuous methods to form the circular part.

Here there is a set of rollers that shape the CuNi strip continuously until a circular section form.

The next step involves the creation of CuNi 90/10 pipes by welding the circular parts.

You can use electric resistance welding, electric fusion welding, or high-frequency welding to form the CuNi 90/10 pipes.

How do CuNi 90/10 pipes compare to CuNI 70/30 pipes?

In addition to manganese and iron, CuNi 70/30pipes has 70% copper and 30% nickel.

CuNi 90/10 pipes have 90% copper and 10% nickel.

CuNi 70/30 pipe is highly resistant to seawater-based corrosion because of the iron and manganese when you compare to CuNi 90/10 pipe.

The CuNi 90/10pipe has a lower level of strength than CuNi70/30.

CuNi 90/10 pipe is common in marine applications, tidewater powerplants oil refineries, and desalination plants.

CuNi 70/30 pipe is of use in salty applications that have high demands due to the 30% nickel present.

The electrical resistivity of CuNi 70/30 is relatively higher than that of CuNi 90/10.

CuNi 90/10 pipes are relatively cheaper and readily available when you compare to CuNi 70/30 pipes.

70 30 Copper nickel pipe

70 30 Copper Nickel Pipe

How do you measure the Diameter of CuNi 90/10 Pipes?

To measure the diameter of a CuNi 90/10 pipe, you will need a tape measure.

Wrap the tape measure around the inner part of your CuNi 90/10 pipe to get the circumference.

Get the diameter by dividing the circumference by pie (3.14).

You can use the diameter to specify the measurements you want for your piping application.

How do you Test the Quality of CuNi 90/10 Pipes?

Most manufacturers have incorporated quality testing in every step of the production process.

This guarantees the effective functioning of your piping system.

Quality testing involves ensuring you have the correct raw materials.

You then test these raw materials to the correct chemical composition.

You also have to control the fabrication process to remove unwanted elements that compromise the quality of the CuNi 90/10 pipes.

Among the critical tests that you can have for your CuNi 90/10 pipes during the fabrication process include:

  • Proof test
  • Ultrasonic test
  • Magnetic particle inspecting test
  • Visual test
  • Tensile test

How do you Package CuNi 90/10 Pipes?

Packaging copper nickel pipe

Packaging copper nickel pipe

CuNi 90/10 pipes are sensitive to abrasion, which affects their quality.

The packaging is, therefore, critical in ensuring your CuNi 90/10 are in perfect condition during the storage and shipment process.

Proper packaging entails end-capping the individual pipes, wrapping the individual pipes using nylon, and bundling them together.

After that, you can either place the pipes in a wooden box, crate, or a steel crate ready for storage or shipment.

How do EEMUA 234 90/10 CuNi Pipes compare to EEMUA 144 CuNi 90/10 Pipes?

The main difference between EEMUA 234 90/10 CuNi pipes and EEMUA 144 CuNi 90/10 pipes is the former is an updated version of the latter.

EEMUA 234 contains information on the usage of CuNi 90/10 pipes on applications such as off-shore, cooling plants, and which fittings to use.

Which Surface Finish Options are available for CuNi 90/10 pipes?

Surface finishing CuNi 90/10 pipes enhances the solderability, adhesion, and chemical resistance of your CuNi 90/10 pipes.

The available surface finish options that you can apply on your pipes include:

· Smooth Finish

As its name suggests, this type of finish leaves no tool markings on the surface.

The reason for this is in using a spiral groove that continuously forms a gasket surface.

· Spiral Serrated Finish

Having this surface finish on your CuNi 90/10 involves the use of a 90-degree tool to form spiral grooves. These grooves have 45° serrations and a “V” geometry.

It is similar to the stock finish option except for the “V” geometry.

· Concentric Serrated Finish

Using this finish option requires the use of a 90-degree tool that forms the groves resulting in an evenly spaced serration surface.

· Coldwater Finish

The result if this finish is a mirror-likeappearance of your surface.

It is convenient when it is a metal to metal surface installation since there is no need to use a gasket.

· Stock Finish

This type of finish uses around nosed tool creating continuous spiral grooves, which result in the formation of a gasket surface.

The radius of the round-nosed tool is 1.6mm and rotates at a speed rate of 0.8mm per rotation.

The depth of the rotation usually is 0.15mm, while the final surface has a roughness range of between Ra 3.2 and 12.5mm.

What should you Consider when Selecting CuNI 90/10 pipes?

Selecting the appropriate CuNi 90/10 pipes involves considering several factors for the effective functioning of your application.

Such factors include:

· Type of Application

The chemical properties of CuNi 90/10 pipes define which application to best use it.

Such properties include their ductility, level of resistance to corrosion, and thermal conductivity.

It is critical to note that some applications function properly with CuNi 70/30 pipes best than CuNi 90/10.

· Operating Temperature and Pressure

To prevent the instance of the bursting of your CuNi 9010 pipes, you have to consider the operating temperature and pressure of your application.

This should be within the range of that of your application.

· Pipe End Configuration

Selecting an appropriate pipe end configuration gives you a secure and tight piping system.

This minimizes leakages while giving your pipes durability.

The type of end configuration for CuNi 90/10 should match that of your piping system.

That is, beveled should be fit in a beveled piping system, and a male threaded CuNi 90/10 should fit in a female threaded piping system

· Cost

CuNi 90/10 should be affordable for you.

This ensures that whatever you purchase does not exceed your budget, especially when there are other alternatives, such as CuNi 70/30 pipes.


The size of your CuNi 90/10 pipes should fit that of your piping application.

This is in terms of the diameter and available length.

Be accurate in your selection and avoid picking a larger or smaller size.

· Standards

A quality CuNi 90/10 pipe should adhere to available standards for quality purposes.

Ensure the one to pick guarantees you quality and service for effective piping connection.

What is the Chemical Make-up of CuNi 90/10 pipes?

CuNi 90/0 pipes have the following chemical make-up:

ASTM B466     C70600

Copper% Nickel% Iron% Manganese% Carbon% lead% Sulphur% Potassium% Zinc% other
Balance 39.0 – 11.0 1.0 – 1.8 Less or equal to 1.0 Less or equal to 0.05 Less or equal to 0.02 Les or equal to 0.02 Less or equal to 0.02 Less or equal to 0.50 _


Why is CuNI 90/10 Pipe Standards necessary?

CuNi 90/10 standards are essential as they ensure you have quality pipes that offer durability to your application.

They also prevent the chances of your pipes leaking by ensuring there is proper end configuration that you can use.

These standards facilitate the selection criteria when you are searching for the right pipe for your use. This is by ensuring you have they have the correct information.

CuNi 90/10 standards give information on the effective environment for the use of your pipes.

Such information includes the salinity level, operating temperature, and pressure.

What is the difference between Welded and Seamless CuNi 90/10 pipes?

The outer diameter for seamless CuNi90/10 ranges between 16mm and 419 mm while that of welded CuNi 90/10 is above 457mm

Seamless CuNi 90/10 lack joints, which are common in welded CuNi 90/10 pipes.

The manufacturing process for seamless CuNi 90/10 pipes entails the extrusion of CuNi billets.

Welded CuNi 90/10 is manufactured using CuNi coil or strip.

Seamless CuNi 90/10 pipes are relatively costly compared to welded CuNi 90/10 pipes.

The strength and structure of the seamless CuNi 90/10 pipe is uniform.

The uniformity of the strength and structure of welded CuNi 90/10 pipes depends on the rolling and method of welding accuracy level.

Common usage of seamless CuNi 90/10 pipes are in an application that has high operating temperature and pressure and involves high mechanical stress.

You can use welded CuNI 90/10 in applications that require moderate operating temperature and pressure.

Methods of manufacturing available for seamless CuNi 90/10 include mandrel mill, plug rolling mill, and extrusion or forging methods.

Fabricating welded 90/10 pipes involves making of a circular part using continuous rolling, plate rolling, or point pressing.

After that, there is welding of the cross-section either by high-frequency welding, submerged welding, or electric resistance method.

I hope this guided answered all your questions about CuNi 90/10 pipes.

If you have any question about CuNi 90/10 which we didn’t cover here, feel free to ask our experts.

You can also send the inquiry to email: directly.

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