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SS / Duplex & Super Duplex Swage Nipples (CONC. & ECC.)

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SS / Duplex and Super Duplex Swage Nipples (CONC. & ECC.)

EBY Fasteners offers a superior range of SS / Duplex and Super Duplex Swage Nipples in both concentric and eccentric configurations. These precision-engineered fittings are essential for seamlessly transitioning between different pipe sizes within your critical piping systems. Manufactured from high-quality stainless steel, duplex stainless steel, and super duplex stainless steel, our swage nipples deliver exceptional corrosion resistance and mechanical strength to handle the most demanding industrial environments
Our swage nipples are produced from seamless buttweld fittings, ensuring superior integrity and pressure handling capabilities compared to welded alternatives. We adhere to stringent manufacturing standards, including ASTM A403 and ASME B16.11, to guarantee consistent quality and reliability. Our comprehensive selection includes various sizes, schedules, and pressure ratings to accommodate the diverse requirements of your projects
Choose EBY Fasteners for your SS / Duplex and Super Duplex Swage Nipple needs. Experience the benefits of our commitment to excellence, backed by our multiple certifications (ISO 9001-2018, ISO 14001, ISO 45001 & PED) and exceptional customer service
Choose EBY Fasteners for your SS / Duplex and Super Duplex Swage Nipple needs. Experience the benefits of our commitment to excellence, backed by our multiple certifications (ISO 9001-2018, ISO 14001, ISO 45001 & PED) and exceptional customer service
  • 304/304L : These versatile grades offer a baseline level of corrosion resistance, making them suitable for general applications where harsh chemicals aren't a primary concern.
  • 316/316L : A significant upgrade, these grades handle chlorides, various acids, and marine environments much better than 304/304L, making them essential for chemical processing and coastal applications.
  • 2205 : The most common duplex grade, providing an excellent balance of strength, corrosion resistance, and overall cost-effectiveness. It significantly outperforms standard stainless steel in demanding environments.
  • Lean Duplex (e.g., UNS S32304) : A more budget-friendly option for applications with less severe corrosion concerns, still offering better resistance than standard stainless steel.
  • 2507 : Designed for harsh conditions like seawater and aggressive chemicals, this grade boasts exceptional resistance to pitting and crevice corrosion.
  • (UNS S32760) : Exceptional resistance to a wider range of acids, good for the most aggressive conditions
  • Types : Concentric Swage Nipples: Both ends have the same nominal pipe size (NPS) and are used to gradually reduce pipe size.
  • Eccentric Swage Nipples : One end is larger than the other, used for pipes with different wall thicknesses or different diameters.
  • Sizes : Available in various sizes ranging from 1/8" to 12" or larger, depending on specific application requirements.
  • Wall Thickness : Swage nipples are available in standard wall thicknesses according to ASME B16.9 or custom thicknesses based on project needs.
  • End Connections : Designed with butt-weld ends for welding to pipes or fittings. Ends are typically beveled for welding convenience.
  • Standards and Specifications : Adhere to standards like ASTM A403/A403M, A815/A815M, and ASME B16.9 for quality assurance and compatibility with piping systems.
  • Pressure Ratings : Pressure ratings depend on material, temperature, and wall thickness. Ratings are specified in pounds per square inch (psi) or bar
  • Corrosion Resistance : SS swage nipples offer good corrosion resistance, while duplex and super duplex types provide enhanced resistance, ideal for harsh environments and acidic conditions.
  • Strength and Durability : SS swage nipples are durable and strong for general applications, while duplex and super duplex versions offer superior strength, making them suitable for high-pressure and high-temperature environments.
  • Temperature Resistance : SS swage nipples handle moderate temperatures well, whereas duplex and super duplex variants excel in resisting elevated temperatures, maintaining their mechanical properties.
  • Pressure Rating : Standard SS swage nipples have typical pressure ratings, while duplex and super duplex versions can handle higher pressures, ideal for demanding industrial settings.
  • Compatibility : Swage nipples in all materials are compatible with various fluids, gases, and chemicals commonly used in industrial processes, integrating seamlessly with other piping components.
  • Quality Assurance : Rigorous testing ensures reliability and performance, with compliance to industry standards like ASTM, ASME, and API ensuring high-quality manufacturing and consistency
  • Refinery & Petrochemical : Used for connecting pipelines in refineries and chemical plants, handling corrosive substances and varying temperatures.
  • Oil & Gas : Employed in pipelines and equipment within oil and gas facilities, including drilling rigs, production platforms, and transportation systems.
  • Power Plant : Integral for steam and water pipelines, as well as in boilers and heat exchangers within power generation facilities.
  • Offshore Platforms : Critical components for offshore structures, ensuring reliable connections in harsh marine environments with high corrosion potential.
  • Ship Building : Utilized in shipbuilding for piping systems that withstand marine conditions, including seawater exposure and mechanical stresses.
  • Industrial Machineries : Integrated into various industrial machinery applications where reliable and leak-proof connections are crucial, such as in hydraulic systems.
  • Pharmaceuticals : Used in pharmaceutical processing equipment and pipelines due to their hygienic properties and resistance to corrosion from chemical agents.
  • Pumps & Compressor : Incorporated into pump and compressor systems, providing robust connections for fluid transfer and pressure handling.
  • Dairy & Food : Essential for sanitary piping systems in dairy and food processing plants, ensuring product integrity and hygiene standards.
  • Sugar Mills : Employed in sugar processing equipment and pipelines, handling corrosive substances and high temperatures involved in sugar production.
  • Textile Machineries : Used in textile manufacturing equipment for fluid handling and transfer applications, contributing to efficient production processes.
  • Fertilizers & Pesticides : Applied in facilities dealing with fertilizers and pesticides, providing corrosion-resistant connections for chemical handling processes

Chemical Composition

ElementPercentage
Carbon (C)0.030% max
Chromium (Cr)24-26%
Nickel (Ni)6-8%
Molybdenum (Mo)3-4%
Manganese (Mn)1.2% max
Silicon (Si)0.8% max
Phosphorus (P)0.030% max
Sulfur (S)0.010% max
Nitrogen (N)0.20% max

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