... Steel Pipe 4. Material: Carbon Steel: ASTM A106 Gr. B, ASTM A53, Gr. B, ASTM A105, ASTM A234 Line Pipe: API 5L Gr. ... , X56, X60, X65, X70, X80 5. Standard: ASME/ANSI, ASTM, DIN, JIS, BS, EN, GB, API 6. Productive Technology: Hoe ... , Anti-rust oil, 3PE coating, Epoxy coating. 8. Test: Chemical composition analysis, Mechanical Properties test, Eddy current, hydrostatic, Ultrasonic, Intergranular Corrosion ...