API 5L Gr B Carbon Steel LSAW Pipes and Tubes Manufacturer, Supplier, Exporter & Stockist in india

API 5L Grade B Carbon Steel LSAW (Longitudinal Submerged Arc Welded) Pipes and Tubes are a critical component of the oil and gas industry, known for their robustness and reliability. These pipes are designed to transport various types of fluids, including crude oil and natural gas, over long distances. API 5L Grade B LSAW pipes typically have an outer diameter ranging from 16 inches to 72 inches and can accommodate wall thicknesses from Schedule 20 to XXS (2.77mm - 80mm). The length of these pipes can be single random, double random, or customized to meet specific project requirements. Manufactured using the longitudinal submerged arc welding method, these pipes are constructed from high-quality carbon steel. The chemical composition typically includes carbon (C) within the range of 0.26% to 0.28%, manganese (Mn) ranging from 1.20% to 1.30%, and low levels of phosphorus (P) and sulfur (S), both of which are maintained at or below 0.030%. Silicon (Si) content falls between 0.45% and 0.50%, with trace amounts of nickel (Ni), chromium (Cr), copper (Cu), molybdenum (Mo), and vanadium (V)

In terms of mechanical properties, API 5L Grade B pipes exhibit a minimum yield strength of 245 MPa (35,500 psi) and a minimum tensile strength of 415 MPa (60,200 psi). The minimum elongation at break is 23%, and they are suitable for use in various environments with impact testing conducted at temperatures as low as -20°C (-4°F) for PSL1 and -45°C (-50°F) for PSL2. These pipes may undergo heat treatment processes such as normalization, quenching, and tempering to enhance their mechanical properties and durability. Surface finishes can include black, varnish, or a 3PE coating for external protection. The ends of the pipes can be beveled, plain, threaded, or coupled as per project requirements.