Name SQUARE STEEL PIPE (HOLLOW SECTION) Steel grade Q195,Q235B,Q345B,X42, X52 ,X60,X70,H40,J55, K55,S235JRH,S275JOH,S355JOH,etc. Outer diameter 20?0-300?00mm Wall thickness 1.2~14 mm Length 6m,12m, or as customer's requirement Executive standard ASTMA53,ASTMA312,ASTM A500, DIN2448,DIN2440,EN10296,EN10219,GB/T8162,etc. Main application Ship building, chemical industry, water conservancy, steel structure, building, etc. Payment terms L/C OR T/T ( 30% in advance ) Delivery time As customer's requirements or normal delivery