ASTM A403 WP304L Long Radius Elbow 6" Sch40 For Chemical Plant

Product Name: Long Radius 90° Elbow
Material: Stainless Steel WP304L / A403 WP304L
Standard: ASME B16.9 / ASTM A403
Type: Seamless or Welded available
Size: 6 inch (DN150)
Schedule: Sch 40s
Bend Radius: Long Radius (LR = 1.5D)
Application: Process Piping, Utility Lines

A SMLSLong Radius (LR) 90° elbow refers to an elbow with a bending radius of 1.5 times the nominal pipe diameter (1.5D). This gentle and gradual turning design can minimize pressure loss and turbulence when fluid passes through, and reduce erosion and corrosion of the pipe wall. Due to its superior hydraulic performance, long radius elbows are the default standard elbow type used in pipeline engineering, ensuring efficient and smooth fluid transport throughout the entire pipeline system.

WP304L is the most widely used material grade for welded pipe fittings. Among them, "WP" represents "Wrought Pipe/Plate", indicating that it is made of forged and rolled materials; 'L' represents low-carbon, ensuring that it can maintain excellent intergranular corrosion resistance after welding without the need for additional heat treatment. 304L material exhibits good corrosion resistance in various chemical media and is easy to form and weld. It has high comprehensive cost-effectiveness and is an extremely reliable and economical choice in general industrial fields such as chemical plants.

In chemical plants, 6-inch Sch40 long radius elbows are the fundamental components for constructing process and utility pipeline networks. They are widely used to connect and redirect pipelines that transport various chemicals, process water, steam, instrument air, and other media. The butt welding connection method provides the same strength and sealing as the pipeline, while WP304L material can cope with moderate corrosive environments. Its standardized design and reliable performance are the cornerstone for ensuring the safe, stable, and continuous operation of fluid transportation systems in chemical plants.

SMLSCO butt welded elbows adopt rigorous process flow to ensure quality. Firstly, use certified seamless steel pipes as raw materials and carry out cutting. Subsequently, the pipe section was precisely shaped into a 90° bend through processes such as cold pressing and pushing. After forming, all elbows will enter the heat treatment furnace for solution annealing to restore the mechanical properties and corrosion resistance of the material that have changed due to cold processing. Finally, it can only be stored after surface pickling, end groove processing, and final inspection.

Choosing SMLSCO fittings means you have chosen stable inventory, faster delivery, and lower costs. We have a year-round inventory of 150 tons of pipe fittings, and regular sizes can be shipped within two weeks, effectively relieving your inventory pressure. Our factory has passed ISO, PED, and NORSOK M650 certifications, and all products undergo 100% non-destructive testing to ensure reliable quality. With the advantage of large-scale production, even small batch orders can enjoy preferential prices, truly reducing costs and increasing efficiency for you.