Standard: BS,JIS,GB,DIN Grade: 10#,20#,45#,Q195,Q215,Q235,Q345,API J55,API K55,API L80 OD: 4 1/2" to 20" Thickness: 0.205" - 0.635" Length: Random or fixed Section Shape: Round Application: Oil Pipe Technique: Hot Rolled Certification: ASTM A106, A53,API 5L,BS,JIS,GB, ASME, EN, ANSI, ASTM. Surface Treatment: Varished, Galvanized, 3PE Special Pipe: API pipe