API 5L X60 straight seam steel pipe, with its high-precision inner and outer diameter control and advanced weld heat treatment process, has become a core material in the oil and gas transportation field. This steel pipe strictly adheres to the API 5L standard, with outer diameter tolerance controlled within ±0.75% (e.g., for a steel pipe with an outer diameter of 406.4mm, the tolerance range is approximately ±3.05mm), wall thickness deviation ≤±10%, and straightness error not exceeding 1.5mm per meter.
API 5L X60 large-diameter steel pipe typically refers to steel pipe with an outer diameter greater than 508mm. Its actual outer diameter range can be customized according to specific project requirements. Common outer diameter sizes include 610mm, 711mm, and 813mm, among others, to adapt to different transportation volumes and project layout requirements.
Product Specification : API 5L, PSL-1, PSL-2
Size: 1/2" to 24", *size above 24" NPS can be arranged on request
Schedule: SCH10, SCH 40, SCH 80, SCH 160 To SCH XXS as per thickness mention in API 5L.
Type : Seamless, Welded, ERW, L-SAW construction
Grade : Grade X60 And L415
API 5L X60 Large Diameter Welded Pipe Performance Characteristics
Excellent Mechanical Properties: Yield strength exceeds 414 MPa, tensile strength is between 520-620 MPa, and elongation is not less than 18%. This high strength and good toughness enable it to withstand the enormous pressure and axial force under high-pressure transportation environments, effectively preventing pipeline rupture and deformation.
Good Weldability: Due to its chemical composition and microstructure, API 5L X60 large diameter straight seam welded pipe is easy to weld. During pipeline construction, it can be easily welded to other pipe fittings, valves, etc., and the quality of the weld joint can be effectively guaranteed. The strength coefficient of the weld joint is generally not less than 0.95.
Strong Corrosion Resistance: During oil and natural gas transportation, pipelines may come into contact with environments containing corrosive media such as hydrogen sulfide and carbon dioxide. With appropriate anti-corrosion measures, such as applying anti-corrosion coatings (e.g., 3PE coating, i.e., three-layer polyethylene coating) and adopting cathodic protection technology, steel pipes can resist the corrosion of these media, extend the service life of the pipeline, and generally ensure that the pipeline can serve in harsh environments for 20 to 30 years.
API 5L X60 large Diameter welded steel pipe factory
