Copper Nickel Pipe Fittings Explained: Composition, Types, and Advantages

Kalpataru Piping Solution is a leading manufacturer and supplier of Copper Nickel Pipe Fittings and they have the high-quality Cupro Nickel (Cu-Ni) grades that includes C70600 (90/10) and C71500 (70/30). We have our large manufacturing line of elbows, tees, reducers, crosses, stub ends, pipe bends, and other high performance marine, offshore, desalination, power generation, etc. industrial applications. Our copper nickel fittings are known to be the best and have high resistance to seawater corrosion, high strength and long life of service and are manufactured according to international ASTM and ASME standards to provide precision and reliability. We offer certified quality products with a high supply potential in the world with full documentation and at low prices in both local and international projects.

What are Copper Nickel Pipe Fittings?

Copper Nickel Pipe fittings are corrosion-resistant fittings that are composed primarily of copper and nickel and other metals such as manganese and iron to improve on its durability and strength. These copper nickel pipe fittings are commonly used in marine and industrial piping systems. These copper-nickel fittings are required in applications that are used in seawater, chemical, and high-pressure environments. These copper nickel alloy comes in different types, such as hastelloy c276 fittings or c276 pipe systems, copper nickel pipe fittings that come with superior performance in marine environments. Many leading copper-nickel fitting manufacturers and suppliers provide this material to be used in shipbuilding and desalination projects. 

Copper Nickel Pipe Fittings Chemical Composition

Copper Nickel Pipeline Fittings chemical composition includes copper and nickel, but it is in a well balanced ratio so as to provide superior corrosiveness and mechanical strength. The grade most commonly used is Cu-Ni 90/10, which contains about 90 percent copper and 10 percent nickel, which makes it the best to use in the marine piping, heat exchanger, and desalination because of its great resistance to seawater corrosion. Cu-Ni 70/30, another significant grade, contains approximately 70 percent copper and 30 percent nickel and it is more durable in more aggressive applications like offshore platforms and chemical processing plants. It is an optimized composition, which enables Copper Nickel Pipe Fittings to work in the high-salinity and high-pressure environment.

Types of Copper Nickel Pipe Fittings

The copper Nickel Pipe fitting is made in different forms and types according to the industry requirements. Some of the most common types of this material are given below. 

Cupro Nickel Buttweld Fittings: 

Cu-Ni Buttweld fittings refer to a category of pipe fittings utilized in altering the flow direction, altering the size (enlarge/ reduce) to regulate the flow, to bifurcate pipes with other pipes and to enjoin other equipment. Among the Common types of Cupro Nickel Buttweld Fittings, comes in a various form and types that include Cu-Ni 90/10 Elbow, Cu-Ni 70/30 Equal Tee, Cu-Ni 90/10 Cross tee, Cu-Ni 70/30 reducer, Cu-Ni 90/10 End Cap, Cu-Ni 90/10 Long radius, Cu-Ni 70/30 Coupling, Copper Nickel Stub End and many more.

Cupro Nickel Socket Weld fittings: 

Cu-Ni Socket Weld fittings are a type of pipe fitting where the pipe is inserted into a recessed area of a pipe fitting, valve or flange, permanently held there. The filet weld is used to bond Socket Weld fittings to pipes. Cu-Ni Socket weld fittings include Cu-Ni 70/30 Eccentric reducer, Cu-Ni 90/10 90/45 degree elbow, Cu-Ni 70/30 Equal cross, Cu-Ni 90/10 End Cap and Cu-Ni 70/30 Bend, Cu-Ni 90/10 Equal tee, Cu-Ni 70/30 Long/Short Stub end, ect.

Cupro Nickel Threaded fittings: 

Cu-Ni Threaded Fittings have been used over the past many years in attaching pipes. Other parts are attached to it through threads. It is screwed into the pipe. Threaded tee, Threaded Union, Socket weld coupling, socket weld cross, forged fittings 90 degree elbow, threaded bushing, socket weld cap, etc are some of the demanding types of forged threaded fittings.

Key Properties of Copper Nickel Pipe Fittings

The copper nickel pipe fitting comes with high durability and corrosion resistance and also has some more key properties that information is listed below. 

Seawater Corrosion Resistance

The copper-nickel pipe fittings are extremely seawater and saltwater resistant, and thus are the perfect nickel alloy pipe fittings to use in the sea and offshore environments.

Stress corrosion cracking

Such nickel alloy fittings have been found to work very well in chloride-prone environments, which minimizes the stress corrosion failure.

High Resistance to Pitting and Erosion 

Copper nickel alloys provide reliable high velocity fluid pitting corrosion and erosion resistance.

Durability in Harsh Conditions 

It is suitable for harsh environments or applications like desalination plants and chemical processing units.

Good Fabrication and Weldability

Simple to produce, weld, and install, and that is why they are suggested by numerous manufacturers of copper nickel fittings.

Long Service Life with Low Maintenance

Confirmed by copper nickel fitting suppliers to do any undertaking that needs reliability and cost-effectiveness.

Advantages of using Copper Nickel Pipe Fittings

The copper nickel pipe fitting has many advantages, some of which are listed below. 

• High resistance to seawater corrosion and environments with chlorides, ensuring that they are very reliable nickel alloy pipe fittings.
  
  
• Good mechanical strength in order to resist high temperature and high pressure environments.
  
  
• Excellent biofouling, pitting, and chemical attack resistance in marine and industrial systems.
  
  
• Excellent weldability and fabrication characteristics in comparison to most other nickel alloy fittings.
  
  
• Long life service with less maintenance, which is the desire of the copper nickel fittings manufacturers and copper nickel fittings suppliers.

Applications of Copper Nickel Pipe Fittings

The copper nickel pipe fitting is used commonly in different industries due to its durability and corrosion resistance and industries that mostly use this material are given below. 

Shipbuilding and Marine Vessels

It is a versatile copper-nickel pipe fitting that finds application in seawater systems, cooling lines, and ballast systems because it has excellent corrosion resistance.

Navy Projects and offshore Platforms

It is also suitable in offshore oil platforms, military vessels, and military infrastructure, where saltwater conditions are of the essence.

Desalination, water treatment plant

This material is applicable in many industries since it can be used in brine circulation, condenser tubes and heat exchangers.

Oil & Gas Industry 

It finds application in high pressure piping systems whereby high integrity nickel alloy pipe fittings are required that are highly resistant to tough chemicals.

Power Generation & Heat Exchangers

Used in condenser systems and thermal applications where it is strong and thermally stable.

Chemical Industries/Process Industries

This material is utilized in many chemical and process industries in cases where resistance to chemical acids and reducing agents needs to be found.

Conclusion:

Copper Nickel Pipe Fittings are designed with superior corrosion protection, force, and longevity in marine and offshore, in desalination, and industry. They are very reliable nickel alloy pipe fittings of balanced composition and versatile types in demanding environments that require high performance and durability. They have high resistance to seawater, pitting and stress corrosion cracking as compared to many other nickel alloy fittings. Being one of the trusted manufacturers of copper-nickel fittings and one of the reliable suppliers of copper-nickel fittings, Kalpataru Piping Solution provides ASTM and ASME-certified products with guaranteed quality, reasonable cost, and worldwide supply services of important piping systems.