API 5L X52 is a high-strength carbon steel pipe grade defined by the American Petroleum Institute (API) under the API 5L standard, specifically designed for pipeline transportation systems in the energy sector. With a minimum yield strength of 52,000 psi (359 MPa) and a tensile strength ranging from 66,700 to 110,200 psi (460 to 760 MPa), X52 pipes offer robust performance for conveying oil, natural gas, water, and other fluids over long distances. This grade is particularly valued for its ability to withstand moderate pressure and harsh environmental conditions, such as those found in onshore and offshore fields.
Available in both seamless and welded forms, API 5L X52 pipes come in two product specification levels—PSL1 and PSL2—catering to different project requirements. PSL1 provides a standard quality level, while PSL2 offers enhanced chemical composition control and additional testing for greater reliability in demanding applications. The pipes' excellent toughness ensures resistance to cracking in cold climates or rugged terrains, while their good weldability simplifies installation and maintenance, reducing project costs.
With its balanced combination of strength, toughness, and cost-efficiency, API 5L X52 is a preferred choice for mid-range pipeline projects worldwide, including oil and gas transmission lines, water injection systems, and midstream infrastructure. Its compliance with API standards ensures consistent quality, making it a dependable option for modern energy transportation needs.