High Quality Copper Nickel Forged Pipe Fittings

70/30 • 90/10 • Strength • Sealing • Durability

Premium Copper Nickel 70/30 & 90/10 Forged Pipe Fittings by Ratnadeep Steel & Engg. Co.

Ratnadeep Steel & Engg. Co. manufactures and supplies Copper Nickel 70/30 and 90/10 Forged Pipe Fittings, renowned for outstanding resistance to seawater corrosion, biofouling, erosion, and stress corrosion cracking. To begin with, these copper-nickel alloys have become the material of choice for marine and offshore environments due to their exceptional longevity and minimal maintenance requirements. Furthermore, their natural resistance to marine organism attachment significantly reduces biofouling, ensuring uninterrupted flow and optimal system efficiency over extended service periods.

In addition, we manufacture our Cu-Ni forged fittings through precision forging and stringent metallurgical control, ensuring excellent strength, durability, and dimensional accuracy. As a result, these fittings deliver consistent performance even under high-velocity seawater flow and turbulent conditions that would quickly degrade lesser materials. Consequently, we supply a comprehensive range of forged elbows, tees, couplings, unions, caps, plugs, and reducers suitable for both socket weld and threaded piping systems used in demanding seawater lines and marine infrastructure.

More specifically, Copper Nickel 70/30 offers superior strength and exceptional erosion resistance, making it the preferred grade for high-flow and abrasive service conditions. On the other hand, Copper Nickel 90/10 provides excellent ductility and cost efficiency, offering a more economical solution for moderate service requirements without compromising corrosion resistance. Moreover, both alloys exhibit outstanding thermal conductivity and excellent resistance to cavitation damage, further enhancing their suitability for heat transfer applications.

Equally important, these forged fittings find extensive application across shipbuilding and repair yards, desalination plants, offshore oil & gas platforms, seawater cooling systems, power generation condensers, heat exchangers, naval defense vessels, and coastal infrastructure projects. Additionally, they perform exceptionally well in brackish water, polluted seawater, and chloride-rich environments where stainless steels often suffer from pitting or crevice corrosion.

Notably, all our Copper Nickel forged fittings comply with internationally recognized standards including ASTM B466 (rod/bar), ASTM B467 (welded tube), and ASME B16.11 (forged fittings), ensuring full material traceability and global acceptance. Finally, we offer value-added services such as custom size manufacturing, third-party inspection, non-destructive testing (NDT), and surface cleaning to meet the most rigorous project specifications and quality assurance requirements.

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Explore Copper Nickel 70/30 Forged Pipe Fittings

Copper Nickel 70/30 Forged Pipe Fittings

Explore Copper Nickel 90/10 Forged Pipe Fittings

Copper Nickel 90/10 Forged Pipe Fittings

Copper Nickel 70/30 Forged Pipe Fittings

High-strength forged Cu–Ni alloy with 70% copper and 30% nickel
Exceptional resistance to seawater corrosion and biofouling
Superior strength for high-pressure marine piping systems
Highly resistant to erosion and stress corrosion cracking
Used in naval vessels, offshore platforms, and seawater cooling
Available as forged elbows, tees, couplings, unions, caps & plugs
Designed for socket weld and threaded pipe connections
Excellent weldability with long service life in marine environments

Copper Nickel 90/10 Forged Pipe Fittings

Economical forged Cu–Ni alloy with excellent seawater resistance
Good mechanical strength with excellent fabricability
Resistant to erosion-corrosion and impingement attack
Widely used in desalination plants and marine piping
Supplied as forged elbows, tees, couplings, unions & caps
Designed for threaded and socket weld systems
Reliable performance in low-to-medium pressure marine service

Frequently Asked Questions About Copper Nickel Forged Pipe Fittings

What are Copper Nickel Forged Pipe Fittings?

Copper Nickel Forged Pipe Fittings are high-strength piping components manufactured through a forging process using copper-nickel alloys. As a leading Copper Nickel Forged Pipe Fittings Manufacturer, we produce these fittings in two primary grades: Copper Nickel 90/10 (UNS C70600) and Copper Nickel 70/30 (UNS C71500) [citation:1][citation:2]. The forging process enhances the material’s mechanical properties, making these fittings particularly suited for demanding marine and industrial applications [citation:1][citation:7].

What is the difference between Copper Nickel 90/10 and 70/30?

The primary difference lies in their nickel content and resulting properties. Copper Nickel 90/10 contains 90% copper and 10% nickel with small additions of iron and manganese, offering excellent resistance to stress corrosion, erosion, and biofouling in seawater and brackish water [citation:6]. Copper Nickel 70/30 contains 70% copper and 30% nickel, providing enhanced resistance to corrosion and erosion with improved strength levels, making it suitable for more demanding applications including high-velocity seawater up to 4.5m/s [citation:6][citation:10].

What manufacturing standards do you follow for Copper Nickel Forged Fittings?

Our Copper Nickel Forged Pipe Fittings are manufactured in compliance with ASTM B467 / ASME SB467 for material specifications and ASME B16.11, MSS SP-79, MSS SP-83, MSS SP-95, and BS 3799 for dimensional standards [citation:1][citation:7][citation:11]. They are available in pressure classes 2000 LBS, 3000 LBS, 6000 LBS, and 9000 LBS [citation:2][citation:7][citation:11].

What types of Copper Nickel Forged Fittings do you manufacture?

As a trusted Copper Nickel Forged Pipe Fittings Manufacturer, we offer a complete range including elbows (45° and 90°), tees (equal and reducing), crosses, full and half couplings, pipe caps, unions, bushings, and nipples [citation:1][citation:2][citation:7]. All fittings are available in socket weld and threaded (screwed) end connections [citation:7][citation:11]. Customized dimensions are available upon request.

Which industries use Copper Nickel Forged Pipe Fittings?

These fittings are widely used across marine engineering, offshore oil and gas, shipbuilding, desalination plants, power generation, heat exchangers, and chemical processing industries [citation:1][citation:7][citation:10]. Due to their excellent resistance to seawater corrosion and biofouling, they are the preferred choice for seawater cooling and firewater systems, condensers, and piping systems [citation:10].

What sizes and pressure ratings are available?

Our Copper Nickel Forged Fittings are available in sizes ranging from ⅛” NB to 4″ NB [citation:7][citation:11]. They are offered in pressure classes 2000 LBS, 3000 LBS, 6000 LBS, and 9000 LBS [citation:7]. Fittings are manufactured to ASME B16.11 dimensional standards [citation:7][citation:11].

What is the difference between socket weld and threaded forged fittings?

Socket weld fittings have a socket-like end that fits over the pipe and are welded for a strong, leak-proof joint, making them suitable for high-pressure applications [citation:7]. Threaded (screwed) fittings have external threads that match with internal threads of pipes, allowing for secure connections without welding [citation:7]. Both types are available in all our forged fitting ranges.

What testing and inspection do you perform on Copper Nickel Forged Fittings?

Our Copper Nickel Forged Pipe Fittings undergo rigorous quality checks including radiography testing (RT), ultrasonic testing (UT), hydrostatic testing, visual and dimensional examination, chemical composition analysis, and mechanical property testing [citation:7]. PMI (Positive Material Identification) and NDT are also performed to ensure material compliance with strict industry standards. Test certificates as per EN 10204 Type 3.1 and Type 3.2 are provided [citation:7].

Why choose Ratnadeep Steel for Copper Nickel Forged Pipe Fittings?

Ratnadeep Steel & Engg. Co. is a renowned manufacturer, exporter, and supplier based in Mumbai, India. We offer factory pricing, top quality, custom sizes, and timely delivery. Our fittings are precision-engineered using advanced forging techniques with rigorous quality inspection, making us a trusted global supplier of high-performance Copper Nickel Forged Pipe Fittings. We provide ISO 9001:2015 certified products with full material traceability.

Our Forged Pipe Fittings are manufactured using advanced forging processes and undergo extensive quality checks to ensure flawless dimensional accuracy, durability, and long service life. Each fitting is thoroughly inspected using key NDT techniques such as radiographic testing (RT), ultrasonic testing (UT), hydrostatic testing, and visual/dimensional examination. We also perform detailed chemical composition analysis and mechanical property testing to ensure material compliance with strict industry standards.

Throughout the forging and finishing stages, every forged fitting is monitored closely to eliminate defects such as misalignment, surface irregularities, and wall-thickness variations. This ensures perfect joint integrity and high-performance reliability in pipelines carrying high temperatures, pressures, and corrosive media. All our forged fittings fully comply with ASME, ASTM, MSS-SP, and related global specifications, making them a preferred choice for critical piping systems worldwide.

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Looking for high-quality Copper Nickel (CuNi) 70/30 and 90/10 Forged Pipe Fittings? Our products are manufactured in compliance with ASTM B467 / ASME SB467 and ASME B16.11 standards. Get in touch with us today.