Gentlemen: Please inform if you can export U Tube (159 U) U-TUBE 1 IN, /O.D 336 IN. LONG 12BWG 1- Seamless austenitic stainless steel heat exchanger tubes according to ASTM-A-213 grade TP321. 2- All tubes shall be solution annealing heat treatment and subsequent to the solution annealing shall be given a stabilization heat treatment ACC to supplementary requirement S2 also detailed report is required. 3- After stabilizing heat treatment, all tubes shall be passed inter granular corrosion test ACC to ASTM A-213 supplementary S4 with practices ASTM-A-262 practice E, also detailed report is required. 4- u-bends and 300mm of straight lengths of tubes shall be stress relieved after bending. We will give you further details and purchase conditions upon your favorable reply. If you are not exporting this product, kindly introduce a supplier in your area. Best Regards Hamid Mahouti MAHOUTI P. O. BOX 14185-374 TEHERAN, IRAN. PHONE: (98-21) 6692 2405, TELEX:214496 MAHO IR http://WWW.MAHOUTI.COM E-MAIL:MAHOUTI@MAHOUTI.COM E-MAIL:hmahouti@gmail.com FAX: (98-21) 6692 24 05
