Description Standard GB/T 8162¡ª2008 ASTM106Gr.B ASTM A53Gr.B Material Q345B 20# ST35 10#£¬X42,X52,X60 Diameter 114MM--914MM Thickness 4MM--60MM Original China Type Seamless Steel Pipe Application Structuer pipe Special pipe Regular and special thick-walled steel pipe, maximum thickness of up to 60MM Usage Widely used in mechanical processing, petrochemical, transportation and construction industry Process Hot rolled and heat expansion Length As your requirements