Stainless steel : ASTM A312 TP 304 / 304L / 304H / 316 / 316L / 317 / 317L / 321 / 310 / 347 / 904L etc. Carbon steel : ASTM A53 GR: B / A 106 GR. B / API 5L GRADE B/API5L GR. *42 / 46 / 56 / 60 / 65/ 70 A333 GR. 3 / GR. 6 etc. Alloy steel : ASTM A335 GR. P1 / P5 / P9 / P11 / P22 / P91 etc. Others : Monel, nickel, inconel, hastalloy, copper, brass, bronze, titanium, tantalum, bismuth, Aluminum, high speed steel, zinc, leads, etc. Types : round, square, rectangular. Size : up to 24” NB. (Seamless and welded). Wall thickness : schedule 5S to schedule XXs All these materials are available in NB sizes as well as OD sizes in all grades. We can also arrange Pipes and tubes as per the CUSTOMERS requirements, which is other than the standard sizes.