Standard: API, ASTM, DIN, GB, JIS Standard2: API 5CT, ASTM A1020-2002, ANSI A182-2001, ANSI B36.10M-2004, DIN 1626, DIN 2448, DIN 2444, GB 13296-2007, GB/T 14976-2002, JIS G3446-2004, JIS G3429 Grade Group: 10#-45#, 10Cr9Mo1VNb, 16Mn, API J55-API P110, Q195-Q345, ST35-ST52, A53-A369 Grade: 10#, 20#, 45#, 10Cr9Mo1VNb, 16Mn, API J55, Q345, St37, St52, St42, St52.4, ST35, A53(A,B), A106(B,C), A179-C Thickness: 1 - 30 mm Section Shape: Round Outer Diameter(Round): 22 - 88.9 mm Place of Origin: Shandong, China Application: Fluid Pipe Technique: Hot Rolled Certification: API Surface Treatment: Black painting,Galvanized or According to Custoemrs' Requirements Special Pipe: API Pipe Alloy Or Not: Is Alloy Product name: PTO shaftQ345B/ST52 Triangular Shape Carbon Steel Tube & Pipe Keyword: special shape triangle shape steel tube Type: Seamless Steel Pipe Material: Q345B,ST52 Surface: Customers't Requirement Usage: PTO shaft Length: 3m-12m End protector: Plastic Pipe Cap Shape: triangular shape Certificate: API 5L,ISO9001 Secondary Or Not: Non-secondary