Material:Low carbon steel Type:Welded ,Galvanized Standard:AISI, ASTM, BS DIN, GB, JIS Usage:Construction Hole Shape:Square ,Rectangle Specifications Standard:API, ASTM, API 5CT, API 5DP, API 5L, ANSI B36.10M-2004, ASTM A53-2007, ASTM A671-2006, GB/ASTM/BS/JIS/EN Grade:10#-45#, 16Mn, API J55-API P110, Q195-Q345, 10#, 20#, 45#, 16Mn, API J55, API K55, API L80, API N80, API P110, Q195, Q235, Q345 Thickness:0.5 - 40 mm Section Shape:Rectangular Outer Diameter:10-400mm Place of Origin:Tianjin, China (Mainland) Secondary Or Not:Non-secondary Application:Structure Pipe Technique:Cold Drawn, Cold Drawn Certification:API ISO BV Surface Treatment:Galvanized Special Pipe:Galvanized pipes Alloy Or Not:Is Alloy Product name:Square Steel Pipe Surface:Zinc Coating Material:Q195/Q215/Q235/Q345 Shape:Square. Rectangular Price:FOB CIF CFR Packaging & Delivery Packaging Details:standard seaworthy packing in bundle Delivery Detail:within 15 days after receicing deposit or copy of LC