Steel Pipe ASTM A106 Gr.B - Smls Steel Pipe ASTM A53 Gr.B -Smls / Welded Steel Pipe ASTM API 5L Gr.B Spiral Welded Pipe ASTM A-252 Gr.2 Steel Pipe ASTM A333 Gr.1 , 3 , 6 For Low Temperature Steel Pipe ASTM A53 Gr.A Welded Steel Pipe Black & Galvanized Welded Steel Pipe ERW A53 , A120 , A252 Gr.2 Steel Pipe Square Steel Pipe ASTM A312 Tp 304/ L Steel Pipe ASTM A312 Tp 316/ L Steel Pipes diameters : 1/ 2 " up to 48 " Steel Pipes thickness: Sch 10 , Sch 20 , Sch 30 , Sch 40 , Sch 80 , Sch 160 , Sch XXS