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Alloy Steel Unequal Tee

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Alloy Steel Unequal Tee

These tees allow for smooth transitions between different pipe sizes, maintaining flow efficiency while offering the strength and adaptability that alloy steels provide. Choose from various alloy grades to tailor the tee’s properties – strength, temperature handling, and corrosion resistance – to the specific demands of your application
Manufactured following strict industry standards (ASTM, ASME), EBY Fasteners’ Alloy Steel Unequal Tees ensure precision dimensions, reliable pressure handling, and compatibility with your existing piping. Our commitment to quality guarantees that each tee is built to perform dependably under the pressures, temperatures, and potentially corrosive environments your project demands
From oil and gas pipelines to chemical processing systems, trust EBY Fasteners’ Alloy Steel Unequal Tees for adaptable and robust connections in critical piping networks
From oil and gas pipelines to chemical processing systems, trust EBY Fasteners’ Alloy Steel Unequal Tees for adaptable and robust connections in critical piping networks
  • 304/304L : The workhorses of stainless steel. Excellent corrosion resistance and good strength. 304L is a low-carbon version, making it a bit better for welding. Common for chemical handling and general process piping.
  • 304H : A higher carbon variant of 304, designed for slightly improved strength at elevated temperatures.
  • 309S/309H, 310S/310H : Higher chromium and nickel content than the 304 family. Even better high-temperature resistance and oxidation resistance, often found in furnace components or heat-intensive applications.
  • 316/316Ti/316H/316LN : Adding molybdenum makes 316 better at fighting pitting corrosion in harsh environments or those with chlorides. 316Ti has titanium to stabilize it during welding. 316H is higher carbon for elevated temperature strength. 316LN is low-nitrogen, enhancing its weldability.
  • 317/317L : Even more molybdenum than 316, making them suitable for even more aggressive chemical environments.
  • 321/321H : Contains titanium, which helps prevent certain types of corrosion that can occur after welding.
  • 347/347H : Similar to 321, but uses niobium instead of titanium for stabilization.
  • 904L : This is a super-austenitic grade. High chromium, nickel, and molybdenum for extreme resistance to chloride pitting and acids. Often found in marine applications or very harsh process chemicals
  • Standards : Alloy steel unequal tees adhere to standards like ASTM A234 (material properties), ASME B16.9 and B16.11 (dimensions), and potentially MSS SP-75 for niche needs. These standards ensure compatibility and safety across different manufacturers.
  • Size : Unequal tees have two defining measurements. The "run" is the main pipe size, while the "branch" is the smaller outlet. A typical size like 6" x 4" means a 6" run and a 4" branch. Sizes generally range from 1/2" (15 NB) to 24" (600 NB) for the run, and larger custom options may exist.
  • Pressure Rating : Common pressure classes for tees include Class 3000, 6000, and 9000. Think of these as safety limits – the maximum pressure they reliably handle at a specific temperature. Choose a class that matches your system's demands, with higher ratings often needed in industries like oil and gas.
  • End Connections : Unequal tees offer connection choices. Butt-weld (BW) is common for large, high-pressure lines. Socket-weld (SW) simplifies the installation process. Threaded (TH) connections are often seen in smaller sizes or situations where future disassembly might be needed.
  • Materials : Choose the material that best suits your application! Low-alloy steels provide improved strength and moderate temperature tolerance. Stainless steels excel in fighting corrosion. For extremely harsh environments, specialized grades (like duplex stainless or those with very high chromium) provide the ultimate protection
  • Flow Control and Flexibility : Unequal tees facilitate changes in pipe diameter and flow direction within a single fitting. This allows you to optimize flow distribution and integrate smaller lines or components into your main piping network.
  • Strength and Resilience : Alloy steels provide superior strength, toughness, and handle higher pressures and temperatures (depending on the grade) compared to basic carbon steel. This means unequal tees designed to withstand the challenges of your industrial piping system.
  • Corrosion Resistance : Especially when using stainless steel grades (like F304 or F316) or specialized high-alloys, your unequal tee gains significant resistance against various corrosive environments. This is vital in chemical handling, marine applications, or any situation where fluids could damage regular steel.
  • Standards Compliance : Manufactured to ASTM and ASME standards, alloy steel unequal tees offer dimensional precision, ensuring seamless integration with other piping components. They also come with reliable pressure ratings, giving you confidence in their safe operation.
  • Versatility through Alloy Selection : Alloy steel options provide a spectrum of properties. Choose the ideal grade to tailor the unequal tee's strength, temperature tolerance, and corrosion resistance to the specific needs of your project
  • Refinery and Petrochemical : Unequal tees are used to branch lines or reduce size within complex process piping. They handle various hydrocarbons and potentially corrosive chemicals.
  • Chemical : In chemical processing, unequal tees integrate smaller lines for additives, control chemicals, or branch off sampling lines. Alloy grades are chosen for their resistance to the specific fluids involved.
  • Oil and Gas : These tees manage flow distribution where pipe sizes change within oil and gas transmission networks. They're also used for branching off smaller lines for instrumentation or specialized equipment.
  • Power Plant : Unequal tees can transition between boiler feedwater line sizes or branch off lines for cooling systems or instrumentation. The alloy grade is selected to suit the temperatures and pressures of the system.
  • Offshore Platforms : Used in process lines exposed to the harsh marine environment, alloy steel tees are chosen for their corrosion resistance. They also accommodate size changes within the platform's piping.
  • Ship Building : Unequal tees facilitate size changes within shipboard systems like fuel lines, ballast lines, or process piping. Corrosion-resistant alloys are crucial for the marine environment.
  • Industrial Machineries : These tees can be used to integrate smaller lines within a machine's hydraulics, lubrication, or process piping systems. Alloy selection depends on the fluids and pressures involved.
  • Pharmaceuticals : Stainless steel unequal tees help maintain hygienic process piping systems. They allow for branching or reducing lines while ensuring a clean flow path for sensitive pharmaceuticals.
  • Pumps and Compressor : Unequal tees integrate into pump and compressor systems, managing changes in flow volume and accommodating smaller lines for control or lubrication systems.
  • Dairy and Food : Sanitary grade alloy steel unequal tees help ensure safe, contamination-free piping within food processing systems. They manage branches and size changes while resisting corrosion from milk, food products, and cleaning chemicals.
  • Sugar Mills : Unequal tees manage flow distribution within sugar mill processing. They might handle potentially abrasive sugar solutions, requiring wear-resistant alloy grades.
  • Textile Machineries : Unequal tees help integrate lines for dyes and other process chemicals into textile machinery. The alloy grade is chosen for its resistance to the specific chemicals used in the process.
  • Fertilizers and Pesticides : Highly corrosion-resistant alloy steel unequal tees are essential for managing the harsh chemicals found in fertilizer and pesticide production and distribution

Chemical Composition

ElementPercentage Range
Carbon (C)Upto 0.30
Silicon (Si)Upto 0.75
Manganese (Mn)Upto 2.00
Chromium (Cr)Upto 20.00
Nickel (Ni)Upto14.00
Molybdenum (Mo)Upto 3.00