Sr. No. Material Size Schedule Specification 1 Carbon Steel Pipe 15 NB To 150 NB Sch. 40s To Sch. XXs A-106 Gr. B Seamless 200 NB To 600 NB Sch. 20 To Sch. 160 2 Low Temperature Carbon Steel 15 NB To 500 NB Sch. 40s To Sch. XXs A-333 Gr. 6 Seam ...Read More