Pipeline steels are engineered for long-distance oil and gas transmission, balancing high strength, toughness and weldability. PacSteelCorp supplies line-pipe grades to API 5L (X42 through X70 and above) and equivalent standards for onshore and offshore pipelines. Controlled rolling and clean steelmaking deliver reliable performance under pressure. The standards below list representative grades with chemical composition and mechanical properties for pipeline design and construction.