2025-12-25
API 5L pipelines are widely used for transporting oil, natural gas, water, and for the natural gas industry. API 5L refers to the American Petroleum Institute's standard, Oil and gas pipelines include seamles pipes and welded pipes, and have three types of ends: plain, threaded, and socketed. The main steel grades are B, X42, X46, X52, X56, X65, and X70.