Tamil Nadu Generation And Distribution Corporation Limited

Tamil Nadu Generation And Distribution Corporation Limited has published Corrigendum - Supply Of Hpms Spares For Hp 803 Bowl Mills-Centrifugally Cast Inserted Rolls 46” With Journal Guard Assembly The Following Specifications To Suit The Existing Hp 803 Bowl Mills. N Nchemical Composition Of The Material: Nc : 2.6 - 3.0%, Cr : 15 - 22% Nmo : 2.5% Max, W : 2.0% Max Nmn : 1.0 - 2.0 %, Si : 0.5 - 1.0 % Nhardness = 63-65 Hrc Nblue Matching = >85% N Nthe Test Certificate Of The Micro Structure Checks Done On The Sample Extracted From Each Roll Using Microscope Should Be Showed Consists Of Carbides Embedded In A Matrix Of Marten Site. N Ndimensions Of Rolls: Nbottom Id = 755 + 0.15 Mm Ntop Pad = 125Mm Nrelief = 180Mm Ntotal Height = 422 N , Compatible Bull Ring Segments for HP 803 Bowl Mills as per drawing having the following material specifications. n nChemical Composition of the material: nC: 2.5 - 3.5%, Cr : 15-20% nSi: 1.0 % max, Mn: 2.0 % max nNi: 0.5 - 1.6 %, Mo: 1.0 - 2.5 % nHardness: 63-65 HRC . n nThe test certificate of the assembly of Bull ring segments carried out on test bowl & fitment should be satisfactory. The gap should be within 11 to 14mm before shimming. . Last date of submission for this tender is 2019-10-09. This is a Spare Part tender in Se Pa Ttps, Tamil Nadu