... Steel Pipes Steel Pipe Features: 1. Description: API Pipe, API 5L pipe, API 5L, oil pipe, line pipe, steel pipe, steel line pipe, API 5ct 2. Specification ... ASTM A53, Gr. B, ASTM A105, ASTM A234 Line Pipe: API 5L Gr. B, X42, X52, X56, X60, ... Eddy current, hydrostatic, Ultrasonic, Intergranular Corrosion. 9. Applications: Petroleum, chemicals, water conservancy, electric power, boiler, machinery, gas, ...