Specifications : ASTM B151 UNS C70600, CuNi10Fe1.6Mn, 7060X

Dimensions :ASME B16.5

Standard : ASME B16.5

Size : 1/2″ to 24”

Class / Pressure : 150#, 300#

Flange Face Type : Flate Face (FF), Raised Face (RF),

Grades : Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500)

Copper Nickel Socket Weld Flange

Shihang Copper Nickel Socket Weld Flange is an ASME B16.5 compliant flange made from copper nickel alloy (grades C70600 (CuNi 90/10) or C71500 (CuNi 70/30). It has high oxidation resistance and excellent corrosion resistance.

Our Copper Nickel Socket Weld Flange is the best flange in the market for seawater, mining, shipbuilding, oil and gas industry, heating systems, power plants, and general applications.

Compared to Shihang Copper Nickel Slip on Flange, Shihang Copper Nickel Socket Weld Flange features a “stop” (shoulder on the inside), matching pipe diameter, preventing slipping through the flange.

Known for the innovative fabrication process, Shihang Copper Nickel Socket Weld Flange comes in a range of sizes from 1/2″ to 4″ and varying pressure ratings from 150LB to 300LB. Raised face (SW-RF) or Flat Face (SW-FF) Shihang Copper Nickel Socket Weld Flanges are available.

Installing Shihang Copper Nickel Socket Weld Flange is easy and simple. Insert pipe system in Shihang Copper Nickel Weld Flange socket, fillet weld from outside the pipe for a smooth and fine finish.

Shihang Copper Nickel Socket Weld Flange is designed with enough clearance for welding.

With Shihang Copper Nickel Socket Weld Flange, a seamless and smooth flow of both gas and fluid is always a guarantee. Choose from a range of Shihang Copper Nickel Socket Weld Flange dimensions, counter-bored for smooth flow, from small size low pressure to large size high-pressure piping systems.

With years of experience in the industry, Shihang uses high-quality raw materials, with the accurate chemical composition for better weldability and fabricability.

At every stage in Copper Nickel Socket Weld Flange manufacturing process, Shihang adheres to strict quality control (QC) and works with a third-party inspection.

Our Copper Nickel Socket Weld Flange has tight dimensional tolerance and consistent design. Shihang Copper Nickel Socket Weld Flange comes with quality inspection certificate.

For custom or special Copper Nickel Socket Weld Flange needs, we have a range of inventory material, and our technicians help in CAD drawing and design. We take you from the design concept through to Copper Nickel Socket Weld Flange fabrication.

Shihang technical team is available 24/7, to answer all your questions on Copper Nickel Socket Weld Flange.

Contact us today for standard and custom Copper Nickel Socket Weld Flange needs.

What is Copper Nickel Socket Weld Flange?

CuNi socket weld flange (SW flange), resemble Cupronickel slip on flange, but with the following unique features:

1. Flange bore has a shoulder like section, also called recessed area or counterbore
2. Recessed area determines how deep you can insert the CuNi pipes in the copper nickel socket weld flange

It implies the Cupronickel weld neck flange has two holes – counterbore whose diameter is slightly larger than the outer diameter of the pipe. Therefore, you can insert the pipe like in the case of the slip on flange.

The second hole (smaller size) has a diameter equal to the internal diameter of the pipe. Implying, the pipe will rest on the shoulder like section.

Figure 1 Socket weld flange – Photo credits: Trupply

Figure 2 CuNi socket weld flange

How does Copper Nickel Socket Weld Flange and Weld Neck Flange Compare?

CuNi Socket Weld Flange	CuNi Weld Neck Flange
It has a short neck	It has a long conical hub which is tapered
The connection uses fillet wielding	The connection uses butt welding
Suitable for high-pressure applications for small diameter piping system	Suitable for high-pressure applications for both small and large diameter piping system
Come in both flat face (FF) and raised face (RF)	Come in both flat face (FF) and raised face (RF)
Cheaper construction than weld neck flange	Butt welding is slightly expensive than fillet welding

 

What is CuNi Reducing Socket Weld Flange?

Copper nickel socket weld flange is specialty flanges allowing you to work with different sizes of pipes.

That is, one end of the flange has a larger diameter while the other has a small diameter.

How do you Connect CuNi Socket Weld Flange in Piping System?

1. Ensure you choose Cupronickel pipes and socket weld flange with the right dimension standard
2. Insert one end of Cupronickel pipe into the Cupronickel socket weld flange.
3. Push the Cupronickel pipe until it touches the shoulder section of Cupronickel socket weld flange
4. Then pull it back to about 1.6mm, allowing for reasonable expansion gap between the end of the CuNi pipe and CuNi socket weld flange
5. Fillet weld around the top of CuNi pipe and Cupronickel socket weld flange
6. Use the bolt holes to connect the CuNi socket weld flange to the entire assembly

By accomplishing these steps, CuNi socket weld flange guarantees a seamless flow of fluid.

Figure 3 connecting socket weld flange – Photo credits: Metals Factory

What is the Function of Copper Nickel Socket Weld Flange?

CuNi socket weld flange provides an effective and efficient way of connecting Cupronickel pipes, valves, pumps, fittings, and other accessories.

Moreover, they provide a fast, secure and reliable way of accessing the CuNi pipe system.

However, you should use copper nickel socket weld flange where:

• Cupronickel threaded pipes can cause leakages due to fluctuation in temperature
• There is high pressure and the pipe diameter is small
• Proper alignment of the piping system is a priority
• Internal welding of the pipe and flange system is virtually impossible

Are there Flat Face and Raised Face Copper Nickel Socket Weld Flange?

Yes, you can get both flat-face (FF) and raised face (RF) CuNi socket weld neck flange.

How does Socket Weld Flange vs Slip on Flange Compare?

Both Cupronickel socket weld flange and copper nickel slip on flange have the same design and structure.

Also, both the CuNi socket weld flange and slip on the flange are joined to the Cupronickel pipe using fillet welding.

However, Cupronickel socket weld flange has a recessed area (counterbore or “shoulder”) which is not the case for Cupronickel slip on flange.

Figure 4 Socket weld flange

Figure 5 Slip on flange

What CuNi Grade is Copper Nickel Socket Weld Flange made from?

You can choose from any of the following copper nickel grades for socket weld flange:

• Copper Nickel 90/10 (C70600 )
• Cupro Nickel 70/30 (C71500)
• 6Mn
• 7060X
• CuNifer

What is Copper Nickel Socket Weld Flange Specification?

When it comes to CuNi socket weld flange specification, you should consider the following:

1. Copper nickel alloy grade
2. Class or pressure rating
3. Standard specification
4. Dimension standard
5. Size
6. Face type – you can choose flat face or raised face

Which Industries Use Copper Nickel Socket Weld Flange?

Cupronickel socket weld flange is suitable for high-pressure systems that use small diameter pipes.

Besides, industries that require flanges that:

• Are corrosion, erosion, and stress-resistant
• Can exhibit uniform stress transfer
• Have excellent mechanical properties
• Are resistant to biofouling

Such industries include shipbuilding, offshore mining, power generation, desalination plants, food process plants, etc.

What is ASME B16.5 Copper Nickel Socket Weld Flange?

These are Cupronickel socket weld flanges that conform to the ASME B16.5 dimension specifications.

Are there Drawbacks of Copper Nickel Socket Weld Flanges?

• Fillet welding requires advanced welding skills
• Expansion gap may cause solid material build-up

What are the Characteristics of Copper Nickel Socket Weld Flange?

CuNi socket weld neck flanges have the following characteristics:

• Shoulder or counterbore making it a perfect choice for high stress and pressure applications
• It allows for easy alignment of piping system
• Resistant to corrosion, erosion, stress, and biofouling
• Weld material does not penetrate to the bore of the copper nickel pipe

Can you Use Cupronickel Socket Weld Flange for High-Stress Applications?

Yes.

The shoulder, expansion gap and fillet welding make copper nickel socket weld flange a perfect choice for high-stress applications.

What are the Benefits of Copper Nickel Socket Weld Flange?

The main benefits of CuNi socket weld flange include:

• With the help of socket weld counterbore or shoulder, you can easily set the depth of copper nickel pipe
• Suitable for applications where internal welding is virtually impossible
• Provide perfect solution for high-pressure applications in small diameter piping system
• In applications where temperature keeps fluctuating, it can replace copper nickel threaded flange to eliminate the instance of leakages
• With CuNi socket weld flanges, there is no need to bevel the copper nickel pipes
• Initial installation cost is low

How do you Inspect Quality of Copper Nickel Socket Weld Flange?

When it comes to quality inspection of CuNi socket weld flange, you should consider the following:

• Test and verify the chemical composition of CuNi alloy grade
• Control quality of socket weld forging and forming process
• Control quality of machining and heat treatment processes
• Measure size, inner diameter, outer diameter, shoulder, bolt hole, socket depth
• Check alignment

More importantly, the Cupronickel socket weld flange must conform to dimension standard specifications.