CuNi 90/10 Flanges

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

  • 100% meets the standard
  • Raw materials certificate
  • 100% radiography tested
  • Third party inspection

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cuni 90/10 flanges
cuni 9010 weld neck flange
CuNi 90/10 Weld Neck Ring Flange (WNRF)

As a one-stop CuNi 90/10 flanges supplier, Shihang can provide you weld neck ring flange for your varied applications.

cuni 9010 slip on flanges
Slip-on Ring Flange (SORF)

You can trust Shihang slip-on ring flange for their unique and great features.

cuni 9010 blind flanges
Blind Ring Flange (BRF)

For your blind ring flange needs, you can count on Shihang CuNi 90/10 flanges manufacturer in China.

cuni 9010 socket weld flange
Socket Weld Ring Flange (SWRF)

We have a wide range of socket weld ring flange for various applications.

cuni 9010 threaded flanges
Threaded Ring Flange

Depending on your applications, Shihang can supply you a wide range of threaded ring flange varies in different sizes.

Lap Joint Ring Flange (LJRF)

Lap joint ring flange from Shihang can be availed at reasonable prices assuring excellent quality products.

Ring Type Joint Flange (RTJF)

All of our CuNi 90/10 flanges stock such as ring type joint flange is tested in different industrial norms.

Related Products of CuNi 90/10 Flanges
As your leading Cuni 90/10 flanges manufacturer, we can provide you only the highest quality ASME CuNi 90/10 flanges.
All of our DIN CuNi 90/10 flanges can be availed at very competitive prices.
ANSI CuNi 90/10 flanges vary in different sizes and shapes.
If you are in need of CuNi 90/10 flanges, Shihang is the best choice as we can offer high-quality and standard CuNi 90/10 flanges.

Send Your Inquiry on Shihang CuNi Tube Now.

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

Shihang CuNi 90/10 Flanges

Shihang CuNi 90/10 flanges can be also named as Copper Nickel C70600. This can offer unique solutions in shipboard, offshore, marine, and navy applications. Shihang CuNi 90/10 flanges are great for seawater piping systems, pressure vessel piping, reverse osmosis water treatment, and heat exchangers and condensers.

Shihang manufacturing company in China is a certified CuNi 90/10 (C70600) flanges supplier for more than 20 years. We can offer an extensive range of flanges that are varying in various specifications, custom dimensions, designations, and non-standard dimensions.

Shihang CuNi 90/10 flanges dimensions vary depending on their standards. Raised face (RF), ring-type joint (RTJ), flat face (FF), male-and-female (M&F), and tongue-and-groove (T&G) are all available for you.

We can offer you Shihang CuNi 90/10 flanges in different types. We have Weld Neck Ring Flange, Slip-On Ring Flange, Blind Ring Flange, Socket Weld Ring Flange, Threaded Ring Flange, and many more.

Our CuNi 90/10 flanges can be welded by making use of spot welding, coated metal arc welding, gas-shielded arc welding, butt welding, brazing, seam welding, soldering, and oxyacetylene welding. It can be fabricated by hot and cold working procedures and is readily weldable.

Shihang offers CuNi 90/10 flanges in an extensive range which easily able to meet your requirements. We are considering global and national standards for our CuNi 90/10 flanges manufacturing. In fact, we firstly tested the raw materials under the set industrial norms.

For your CuNi 90/10 flanges needs, Shihang is the best choice. We assure you to deliver you the perfect quality CuNi 90/10 flanges because we utilize the advanced and latest machines.

Make Shihang as your trusted CuNi 90/10 flanges suppliers now! We have professional teams holding desired knowledge, skills, and years of experience in this field.

Contact us today. We are available 24/7 to serve you.

CuNi 90/10 Flanges: The Complete FAQ Guide

I know you would like to import CuNi 90/10 flanges from China.

Or, you’re looking for more information about CuNi 90/10 flanges.

That’s why this guide will answer all questions you have about copper nickel flanges – from functions, end configurations, fabrication process, installation to quality standards, just to mention a few

Keep reading:

What are CuNi 90/10 Flanges?

CuNi 90/10 is piping accessories that are common in applications that operate in extreme conditions.

These conditions include a salty environment, fluctuating temperature applications.

Their characteristics facilitate their usage in such conditions.

Depending on their design, they come in form of collar or discs you can attach to a copper nickel pipe to provide support, implement other pipe attachments or block the flow.

CuNi 90 10 flange

CuNi 90 10 Flange

What are the End Configurations of CuNi 90/10 Flanges?

For proper connection and tightening of CuNi 90/10 flanges, you have the following end layouts:

· Plain End Configuration

Socket welding and Slip-on flanges make use of this type of layout.

It features an end cutting that runs perpendicular 90 to the pipe.

· Bevelled End Configurationt

Bevelled end layout has its end cuttings as not running perpendicular to the piping system.

In most cases, the bevelled end layout has an angle of 37.5 degrees.

However, you can have a bevelled end configuration with different angles.

Its use is mostly in piping applications that require welding.

· Threaded End Configuration

Threaded end layout can either be male or female.

A male threaded end layout has its groove cutting towards the flange’s outer part.

The groove cutting of a female threaded end layout has its groove cuttings towards the flanges inner part.

A male threaded end needs to fix to a female threaded end and vice versa.

You can also refer to this type as screw end layout as it has tapered groove cuts each being 3/4″ for every foot in size.

They are of primary use in piping applications whose size is 3″ or less.

Joining of threaded CuNi 90/10 flanges involves a reduction of the threaded engagement distance.

This is pulling distance from one end of your CuNi 90/10 flanges to the opposite end of the piping system.

What is the difference between CuNi 90/10 Flanges and CuNi70/30 Flanges?

CuNi 90/10 flanges have a larger amount of copper than CuNi 70/30 flanges which has a large amount of Nickel.

The high amount of Nickel in CuNi 70/30 flanges makes it non-corrosive to salty water compared to CuNi 90/10 flanges.

CuNi 90/10 flanges have high strength due to the high amount of copper than CuNi 70/30 flanges.

Desalination plants, marine applications, oil refineries, and powerplants use CuNi90/10 flanges.

CuNi 70/30 flanges have a high electrical resistivity compared to CuNi 90/10 flanges.

CuNi 70/30 flanges is costly compared to CuNi 90/10 flanges.

What is the Function of CuNi 90/0 Flanges?

The functioning of CuNi 90/10 varies depending on the type that you are using.

There are those whose function is to connect two piping system.

Others have the function of blocking a given piping connection, yet other CuNi 90/10 flanges terminate a piping connection.

What makes CuNi 90/10 Flanges suitable for Piping Applications?

CuNi 90/10 flanges have unique characteristics that facilitate their function in piping applications.

These characteristics include:

  • Easy to modify to your requirements
  • High thermal conductivity and expansion rate facilitates their use in applications that don’t have stable expansion rates.
  • High anti-fouling characteristics
  • Non-corrosive
  • Eye appealing appearance
  • High ductility

Which Applications Use CuNI 90/10 Flanges?

Common applications for CuNi 90/10 flanges include:

  • Power generating plants
  • Shipbuilding industry
  • Offshore mining industry
  • Desalination plants
  • Food processing industry

Sea water paping in ship

 Sea water piping in ship

What are the Benefits of CuNi 90/10 flanges?

Benefits of CuNi 90/10 flange are:

  • Durability since they are anti-corrosive. This translates to low maintenance cost in the long run.
  • Versatility since they are adaptable for high-temperature usage.
  • Easy and straightforward to connect.
  • Secure and leakproof installation.

Are there any Limitations of CuNi 90/10 Flanges?

Like any other flanges, the use of CuNi 90/0 flanges has a few limitations.

First, their price is relatively high compared to different types of flanges.

Also, they require regular maintenance which adds to the overall cost of the CuNi 90/10 flanges.

At times, the professionals to do the maintenance may not be available, which poses a challenge to the proper working of the CuNi 90/10 flanges.

Does CuNi 90/10 Flanges have a Standard diameter?

CuNi 90/10 flanges have a standard diameter range of between 0.25-24 inches.

How can you Determine CuNi 90/10 Flanges Diameter?

CuNi 90 10 Pipe Flange Dimension

 CuNi 90/10 flanges dimensions

For proper measurement of the diameter, you need a proper tape measure.

First, get the circumference of the inner part of the CuNi 90/10 flange by rounding the tape measure around the flange.

Once you have this measurement, you divide it by 3.14 to obtain the diameter.

What is the difference between CuNi 90/10 Flanges and CuNi 90/10 Fittings?

Bolt holes are present in CuNi 90/10 flanges but absent in CuNi 90/10 fittings.

CuNi 90/10 flanges are secure and leakproof to use when you compare to CuNi 90/10 fittings due to the availability of bolts.

The design of CuNi 90/10 flanges is heavy and thick compared to CuNi 90/0 fittings.

Also, the usage of CuNi 90/10 is common when you compare to CuNi 90/10 flanges.

This is due to the numerous usage that a CuNi 90/10 fitting offers like fluid diversion, connection and termination of a piping line.

They, however, have the same chemical composition, and their application is in the piping sector.

How do you Fabricate CuNi 90/10 Flanges?

Different CuNi 90/10 flanges means there are different fabrication processes.

However, common manufacturing processes basing on CuNi 90/10 flanges types are:

· CuNi 90/10 Blind Flange

The final production of CuNi 90/10 blind flange has the following manufacturing stages:

  • Raw material quality assessment, including ascertaining the chemical composition.
  • Shaping of the CuNi 90/10 bar into the required specification
  • Fabricating the CuNi 90/10 bar to have the right CuNi 90/10 blind flange
  • CuNi 90/10 blind flange machining
  • Heat treatment of CuNi 90/10 blind flange
  • Testing quality of your CuNi 90/10 flange
  • Marking and packing of the flanges

· CuNi 90/10 Composite Slip-on Flange

CuNi 90/10 composite slip-on flange has the following fabrication steps:

  • Assessing the grade of raw materials such as the carbon for the outer part and cupronickel for the inner part.
  • Shaping the cupronickel bars according to the specifications available.
  • Fabrication of the cupronickel bars to get the stub end of CuNi 90/10 flange
  • Shaping of A105N carbon steel as per available specifications and fabricating it to come up with the outer part of the CuNi 90/10 flange.
  • Bolt hole drilling of the exterior part of your flange
  • Heat treatment of all parts of the flange including interior and exterior sides
  • Inspection of the final CuNi 90/10 composite slip-on flange and placing the relevant markings. Such markings include lot number, dimension standards and pressure ratings.
  • Packing CuNi 90/10 composite slip-on flange.

· CuNi 90/10 Threaded Flange

The fabrication process of CuNi 90/10 threaded flange involves:

  • Raw material inspection
  • Shaping the materials into the specified requirements
  • Flange forging
  • Heat treatment
  • Roll forging
  • Surface finish application
  • Quality inspection of CuNi 90/10 threaded flange
  • Packing

· CuNi 90/10 Socket Weld Flange

The stages of production of CuNi 90/10 socket weld flange consists of:

  • raw material assessment including chemical testing
  • the shaping of the raw material as per the specifications
  • fabrications of the CuNi 90/10 bar to form the Socket weld flange
  • heat treatment of the CuNi 90/10 socket weld flange
  • checking the available specifications such as the measurements.
  • Final quality inspection
  • Packaging of the CuNi 90/10 socket weld flange

How can you Install CuNi 90/10 Flanges?

The type of CuNi 90/10 flanges determines its installation process.

As such, you can install your CuNi 90/10 flanges in either of the following ways:

· CuNi 90/10 Composite Slip-on Flange

The installation involves the insertion of the CuNi 90/10 flange inside the pipe as you maintain backing flange active.

Once in position, weld both sides of the flange and the pipe.

As you do this, try forcing the CuNi composite slip-on flange into your pipe.

This gives a secure and leakproof connection.

· CuNi 90/10 Blind Flange

Check if the CuNi 90/10 blind flange has the same number of holes as that of your pipe and the gasket before you start the installation.

Also, their surfaces have to be clean.

Insert a gasket on your CuNi 90/10 flange and into the CuNi pipe.

Tighten the connection using bolts and nuts.

This gives you a leakproof connection.

· CuNi 90/10 Socket Weld Flange

Installation entails getting the correct sizes for CuNi 90/10 flange and pipe.

Thereafter, insertion of the opposite ends of CuNi 90/10 socket weld flange and CuNi pipe.

Push the pipe till it nears the CuNi 90/10 socket weld flange shoulder.

The remaining space is vital for CuNi pipe expansion.

You have to fillet weld the top part of the CuNi 90/10 socket weld flange and pipe.

Finally, bolts helps in holding the CuNi 90/10 flange tightly in position.

· CuNi 90/10 Threaded Flange

Its installation process is simple and is in use frequently.

Essential considerations include checking on the type of threaded end, that is, if it is a female end, the pipe should have a male end.

Screw the two ends tightly to give a secure connection.

You might have to use a tightening tool for proper connection.

What are the Considerations for Selecting CuNi 90/10 Flanges?

Proper selection of CuNi 90/10 flanges minimizes leakages and ensures your application is durable.

Among the determinants, you need to check on before CuNi 90/0 flange selection include:

· Type of CuNi 90/10 Flange

The type of CuNi 90/10 flange that you select should fit the requirements of your application.

This is due to the availability of different types of CuNi 90/10 flanges that perform different functions.

For example, one for redirecting fluid flow is different from one that terminates piping connections.

· Standard Specifications

Standards specifications ensure the quality and reliability of CuNi 90/10 flanges.

As such, the CuNi 90/10 flanges should have the necessary specification before their selection and usage.

· Operating Pressure and Temperature

The operating pressure and temperature of the CuNi 90/10 flange should be within that of your piping.

This ensures proper functioning while minimizing leakages and damages.

· Size

Consider the measurements of the CuNi 90/10 flange to ensure it can fit the piping requirements.

Proper size should not cause leakages, and it should not make it hard to connect.

· End Layout

The three types of end layout determine which CuNi 90/10 flange to pick for your use.

The one you select should match the piping requirements for the secure and tight installation process

What are the Quality standards of CuNi 90/10 Flanges?

Quality standards for CuNi 90/10 flanges are:

  • JIS standards
  • ANSI standards
  • BS Standards
  • DIN 86036 standards
  • ASME B16.5 standards
  • EN standards
  • EEMUA 145/EEMUA 234 standards

Which Types of CuNi 90/10 Flanges are there?

The available CuNi 90/10 flanges types available include:

  • CuNi 90/10 threaded flange
  • CuNi 90/10 socket weld flange
  • CuNi 90/10 composite slip-on flange
  • CuNi 90/10 blind flange

What is the Comparison between ANSI CuNi 90/10 Flanges and DIN CuNi 90/10 Flanges?

The difference between these two is in their application.

DIN CuNi 90/10 flanges regulate European CuNi 90/10 flanges while ANSI regulates American CuNi 90/10 flanges.

ANSI CuNi 90/10 flanges use psi and Inches as their units of measurements while DIN CuNi 90/10 flanges use bar and mm.

The outer diameter of DIN CuNi 90/10 flanges is 100mm while that of ANSI CuNi 90/10 is 125milimeter.

What are the Available CuNi 90/10 Flanges Surface Finish Alternatives?

You can apply either of the following surface finishing on your CuNi 90/10 flanges:

· Spiral Serrated

The use of a perpendicular piece of equipment is responsible for creating a rotating spiral groove.

The twist groove has a “V”configuraton and leaves 45-degree zigzag on its surface.

It is this “V” geometry that makes it different from a stock surface finish.

· Smooth Finish

This finish uses a rotating spiral groove that leaves the surface clean and smooth without any markings.

The groove has a round-shaped equipment whose radius is 0.8 millimeter and a feed rate of 0.3milimeter.

This leaves a 0.05-millimeter depth on the surface.

· Coldwater Finish

Coldwater surface finish features a glossy appearance on the surface.

It is the ideal surface finish alternative when you are connecting metal to metal surfaces without using a gasket.

· Stock Finish

The formation of the gasket surface is through the generation of a spiral groove using a round-shaped equipment.

This equipment has a1.6mm radius and rotates at 0.8mm per revolution.

Every revolution creates a0.15milimeter depth, resulting in a roughness of 3.2-12.5mm.

· Concentric Serrated

A perpendicular piece of equipment is responsible for the creation of concentric grooves that have even serration spaced across the surface.

Is there Maximum Pressure Rating for CuNi 90/10 Flanges?

No. CuNi 90/10 flanges have different maximum pressure ratings depending on the size of the piping application and its standard specifications.

However, the pressure range for most CuNi 90/10 flanges is between 150psi – 250psi.

What is the Price of CuNi 90/10 Flanges?

There is no fixed price for CuNi 90/10 flanges as there are several elements that affect it, such as:

· Manufacturer

There are different price tags for CuNi 90/10 flanges depending on the manufacturers.

A well-established manufacturer is likely to offer lower prices than a startup manufacturer.

Also, the price may vary depending on the MOQ you want for CuNi 90/10 flanges.

· Type of CuNi 90/10 Flange

The various CuNi 90/10 flanges function differently on your application.

They also cost differently.

Selecting the correct type of CuNi 90/10 flange determines the price you are going to pay for it.

· The Size of CuNi 90/10 Flange

The different size available in the market cost differently. For example, a smaller CuNi 90/10 flange costs less than a large CuNi 90/10 flange.

What is the Quality Testing Mechanism of CuNi 90/10 Flanges?

The importance of testing the quality of CuNi 90/10 flanges is to guarantee the reliability and safety of the final product.

As such, there is need to conduct quality testing on the raw materials and controlling the input at every production stage.

Critical test that you need to conduct on CuNi 90/10 flanges include:

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

Why should you Import CuNi 90/10 Flanges from China?

China offers the best market to source for your CuNi 90/10 flanges due to several reasons, including:

· Quality CuNi 90/10 flanges

Manufacturers in China have a reputation for producing quality CuNi 90/10 flanges that meet international standards.

There is the testing of each step of the fabrication processto ensure it adheres to the set standards.

Importing these flanges from China implies that you have to worry less about their quality.

· Meeting Delivery Time

Chinese manufacturers have strict adherence to production time.

They ensure you have your CuNi 90/10 flanges at the time they agreed with you.

This is vital as it gives you time to continue with other activities while you wait for your order.

· A Variety of CuNi 90/10 Manufacturers

There are many manufacturers of CuNi 90/10 flanges in China ready to work on your order.

This gives you an upper hand when searching for a reliable one.

It allows you to negotiate on the best price, the MOQ and also the delivery time.

The trick is finding a reliable manufacturer as some are not licensed.

· Proper Feedback

A reliable manufacturer in China will inform you of every step of the production for your order.

This helps you in tracking the production schedule while organizing and rescheduling your plans based on the progress.

Furthermore, this gives you a sound mind as you wait for your order.

Clearly, there are many aspects you should consider when importing CuNi 90/10 flanges from China.

Although this guide has covered virtually everything you need to know, in case you have any other questions feel to contact Shihang engineers.

You can also send the inquiry to email: directly.

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