API 5L X46 PSL1 Seamless Pipe is a steel pipe used mostly in the pipeline industry for the transportation of petroleum and natural gas to the companies. These pipes are capable of oil and gas transmission, structural application, and motorized elements. API 5L X46 PSL1 Seamless Pipe is a Carbon-based alloy Steel Seamless and Combined Pipes. Aside from Carbon, alloys including Manganese and phosphorus are added to enhance their mechanical properties. Follow criteria of titanium, Vanadium, and Niobium may likewise be added to them.