Application: Seamless medium carbon steel tube for boiler and supertheater-For manufacturing wall panel, economize, superheater and steam pipeline of boilers. Available Steel Grade: Gr.A-1, Gr.C. Size: OD 1/ 2-5in.( 12.7-127mm) , WT 0.035-0.500in.( 0.9-12.7) mm, Max.Length 13500mm. For more details, please do not hesitate to contact us.