rate contract for supply of ss tube to various cooperative and corporation sugars mills for the the year 2020-21 , erw stainless steel tubes of aisi 304 quality confirming to is:13316 of 1992 grade ( astm 249 ) , duly annealed & pickled , passinated and hydraulically tested to 1000 psi and guaranteed against cracking and suitable for expansion in tube plate . , size upto 52 mm od x 1 . 2 mm thick , size upto 52 mm od x 1 . 6 mm thick , 52 to 76 mm od x 1 . 6 mm thick , 76 to 102 mm od x 1 . 6 mm thick , seamless stainless steel tubes of aisi 304 quality confirming to is:13316 of 1992 , duly annealed & pickled , passinated and hydraulically tested to 1000 psi and guaranteed against cracking and suitable for expansion in tube plate . , size upto 52 mm od x 1 . 2 mm thick , size upto 52 mm od x 1 . 6 mm thick , 52 to 76 mm od x 1 . 6 mm thick , 76 to 102 mm od x 1 . 6 mm thick , erw stainless steel tubes of aisi 304l quality confirming to is:13316 of 1992 grade ( astm 249 ) , duly annealed & pickled , passinated and hydraulically tested to 1000 psi and guaranteed against cracking and suitable for expansion in tube plate . , size upto 52 mm od x 1 . 2 mm thick , size upto 52 mm od x 1 . 6 mm thick , 52 to 76 mm od x 1 . 6 mm thick , 76 to 102 mm od x 1 . 6 mm thick , seamless stainless steeltubes of aisi 304l quality confirming to is:13316 of 1992 ( astm 249 ) duly annealed & pickled , passinated and hydraulically tested to 1000 psi and guaranteed against cracking and suitable for expansion in tube plate . , size upto 52 mm od x 1 . 2 mm thick , size upto 52 mm od x 1 . 6 mm thick , 52 to 76 mm od x 1 . 6 mm thick , 76 to 102 mm od x 1 . 6 mm thick