Delhi, India-based Vishal Flanges has achieved a strong reputation as a leading manufacturer and supplier of high-quality Copper Nickel Threaded Flanges. Famed for their high corrosion resistance, long-lasting properties, and mechanical strength, these flanges are most suitable for rigorous marine and industrial applications. Committed strongly to precision engineering and international quality standards, Vishal Flanges guarantees each product with the highest performance and reliability levels. The firm’s commitment to product innovation and customer service has ensured that its Copper Nickel Threaded Flanges become the go-to solution for customers in various industries globally.
Specifications ASTM B366 / ASME SB366
Dimensions ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, MSS SP-79
Size 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated)
Type Seamless / Welded / Fabricated
Bending Radius R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Thickness Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS
Grade 20 UNS (N08020), DIN (2.4660)
Copper Nickel Threaded Flanges consist mainly of copper (60–70%) and nickel (30–40%) with minor additions of iron and manganese for added strength and corrosion resistance. This special alloy mix offers excellent resistance against seawater corrosion, biofouling, and stress cracking. Mechanically, these flanges are endowed with average tensile strength, good ductility, and good heat stability. They operate efficiently in high-temperature as well as high-pressure applications with a guaranteed long service life and performance consistency. The fusion of mechanical resilience and anti-corrosive nature makes them suitable for applications in severe and marine conditions.
| Grade | Ni | C | Mn | P | S | Si | Cr | Nb | Mo | Cu |
| Alloy 20 | 32 – 38 | 0.02 max | 1 – 2 | 0.02 max | 0.005 max | 0.7 max | 19 – 21 | 0.1 – 0.3 | 2 – 3 | 3 – 4 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Alloy 20 | 8.1 g/cm3 | 1443 °C (2430 °F) | Psi -80,000, MPa -551 | Psi – 35,000, MPa – 241 | 30 % |
Smith Fittings is a leading supplier of Alloy 20 Pipe Fittings in Canberra, Australia. We offer an extensive range of Monel 400 fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | UNS | WNR. | AFNOR | EN |
| Alloy 20 | N08020 | 2.4660 | Z2NCUD31-20AZ | NiCr20CuMo |
Alloy 20 Pipe Fittings from Smith Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
Alloy 20 pipe fittings offer several key advantages, including exceptional resistance to corrosion, particularly in acidic environments like sulfuric acid. Their high nickel content enhances resistance to chloride stress corrosion cracking, while the chromium and molybdenum provide excellent protection against pitting and crevice corrosion. These fittings maintain strength and durability even at high temperatures. Alloy 20 also exhibits good weldability and formability, making it versatile for various industrial applications, such as chemical processing, pharmaceuticals, and food production. Its long-term reliability and resistance to degradation reduce maintenance costs.
Yes, custom sizes for Alloy 20 Pipe Fittings are available at Smith Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@smithfittings.com.
Vishal Flanges’ Copper Nickel Threaded Flanges find extensive applications in marine, shipbuilding, offshore oil and gas, and desalination applications because of their excellent resistance to seawater corrosion. They are suitable for applications in piping systems, condensers, heat exchangers, and cooling systems where continuous exposure to saline conditions is expected. Apart from marine uses, these flanges are used in chemical processing plants, power generation plants, and HVAC systems as well. Designed to last and be reliable, Copper Nickel Threaded Flanges provide leak-free, safe connections in demanding operations, with long-term performance even in the most severe and highest-stress industrial applications.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.








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