SS / Duplex & Super Duplex 90° & Reducing Elbows
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SS / Duplex and Super Duplex 90-degree and Reducing Elbows
When demanding applications require robust connections, seamless flow, and exceptional corrosion resistance, EBY Fasteners delivers superior SS / Duplex and Super Duplex forged pipe fittings. Our 90-degree elbows provide sharp directional changes with minimal pressure loss, while reducing elbows smoothly transition between different pipe sizes for optimal flow characteristics. Their forged construction grants them a refined grain structure, maximizing strength for demanding environments
Stainless steel (SS) elbows offer a strong foundation of corrosion resistance for various industries. If conditions become severe, upgrade to Duplex elbows. Their enhanced properties provide unmatched resistance to chloride stress cracking corrosion, crucial in harsh chemical environments or systems handling aggressive fluids
For the ultimate protection in extreme environments, choose Super Duplex elbows. Their specialized metallurgy combats pitting, crevice corrosion, and aggressive attacks typical in offshore platforms, chemical processing plants, and the most demanding industrial settings. When downtime is unacceptable, these elbows guarantee unwavering reliability
For the ultimate protection in extreme environments, choose Super Duplex elbows. Their specialized metallurgy combats pitting, crevice corrosion, and aggressive attacks typical in offshore platforms, chemical processing plants, and the most demanding industrial settings. When downtime is unacceptable, these elbows guarantee unwavering reliability
- ASTM / ASME A/SA 403 : As the foundation for forged and wrought stainless steel fittings, this standard ensures quality control. It outlines the requirements for chemical composition, mechanical properties, and rigorous testing procedures.
- ASTM A815, ASME SA 815 : These standards specifically focus on Duplex and Super Duplex fittings, delving into the precise details of different alloy options for these elbows.
- UNS Numbers : Unified Numbering System designations precisely classify the various Duplex and Super Duplex alloys. Look for designations like S31803, S32205 (Duplex), S32750, and S32950 (Super Duplex)
- WP316/316L : These remain your go-to choices for general applications with decent corrosion resistance within the stainless steel family. 316L's low carbon content makes it slightly better at resisting intergranular corrosion.
- ASTM A403 Grades (WP-S, WP-W, WP-WX) : This section of the A403 standard covers other stainless steel compositions that might be used for 90-degree and reducing elbows depending on specific needs.
- 304/304L and ASTM A182 F316L : Stainless steel staples, often used interchangeably with the WP grades listed above
- Design Standards (ASME, ANSI, JIS, etc.) : Precision engineering is paramount. These elbows adhere to standards like ASME B16.9 and B16.28, guaranteeing dimensional accuracy, compatibility across manufacturers, and reliable performance under specified pressure and temperature conditions.
- Material Grades (ASTM A403, A815, etc.) : These elbows are meticulously crafted from specialized alloys. ASTM A403 covers general wrought stainless steel fittings, while ASTM A815 focuses specifically on Duplex and Super Duplex alloys. Look for grades like WP316L, WP2205, and WP2507.
- Size Range : SS / Duplex and Super Duplex 90-degree and Reducing elbows are available in a wide range of Nominal Pipe Sizes (NPS) to seamlessly integrate into your existing system. These sizes align with standard pipe schedules.
- Wall Thickness : Select from various wall thicknesses, commonly referred to as schedules (e.g., schedule 10S, schedule 40S, schedule 80S). Choose the correct thickness based on your application's pressure requirements.
- Mechanical Properties : These elbows offer superior tensile strength (resistance to breaking) and yield strength (resistance to permanent deformation) compared to standard stainless steel. This ensures exceptional durability in demanding conditions and those requiring high-pressure handling
- Robust Construction : Engineered for high tensile and yield strength, these elbows withstand significant pressure and mechanical loads for reliable operation.
- Unmatched Corrosion Resistance : Designed to combat pitting, crevice, and general corrosion, ensuring long-term integrity in harsh environments. Duplex grades offer exceptional protection against chloride stress corrosion cracking.
- Optimized Flow : The 90-degree bend promotes smooth directional changes, while reducing elbows maintain pressure stability when transitioning between pipe sizes.
- Forged Strength and Reliability : Their forged construction ensures a refined grain structure, maximizing durability and preventing potential leaks.
- Leak-tight Connection : Seamless or welded designs provide a secure fit, ideal for critical applications involving high pressures, high temperatures, or sensitive fluids.
- Unwavering Dependability : Engineered for industries where downtime is costly, their strength and corrosion resistance translate to extended service life and reduced maintenance requirements.
- Adaptable Solution : Available in various grades and sizes, making them a versatile choice for diverse applications from chemical processing to offshore installations
- Refinery & Petrochemical : Vital for managing flow direction and pipe size transitions in harsh process fluids, heat exchangers, and high-pressure systems.
- Chemical : Ideal for critical process lines and vessels handling extremely aggressive chemicals, ensuring leak-proof operation and product purity.
- Oil & Gas : Essential for subsea pipelines, offshore platforms, and equipment exposed to the corrosive marine environment.
- Power Plant : Utilized in critical process lines, high-pressure steam systems, and applications where strength and long-term reliability are crucial.
- Offshore Platforms : Favored for high-pressure seawater systems (fire suppression, ballast) and critical process lines exposed to the harsh marine environment.
- Shipbuilding : Employed in high-pressure seawater systems, fuel lines, and critical shipboard piping where corrosion resistance and durability are key.
- Industrial Machineries : Essential for connections within machines handling corrosive fluids, high pressures, or elevated temperatures.
- Pharmaceuticals : Indispensable for process lines and vessels ensuring the purity of highly refined chemicals.
- Pumps & Compressors : Extensively used in piping systems for pumps and compressors, enabling reliable operation with corrosive fluids and high pressures
Chemical Composition
| Element | Typical Range (%) |
|---|---|
| Chromium (Cr) | 26 max |
| Nickel (Ni) | 14 max |
| Molybdenum (Mo) | 5 max |
| Nitrogen (N) | 0.32 max |
| Copper (Cu) | 2 max |
| Tungsten (W) | 0 - 1.5 |
