Tender For Erection And Post Erection Works Of 01 No. Anti Submarine Warfare Vessel (Asw), cochin-Kerala

Erection And Post Erection Works Of 01 No. Anti Submarine Warfare Vessel (Asw); 1 Erection, alignment, fairing welding, drysurvey and vacuum testing of erection joints of Steel Blocks. Weight : 245 Tonnes No.of Blocks : 10 Nos. Weld length : Butt - 600 M & Fillet – 400 M Material : DMR249A. (Thickness range 4 mm to 10 mm) Welding Processes : MIG, MMAW 2 Erection, alignment, fairing welding and drysurvey of erection joints of Superstructure Aluminium Blocks. Weight : 45 Tonnes No.of Blocks : 9 Nos. Weld length : Butt - 195 M & Fillet – 185 M Material : DNV-5083 Grade H116 (Thickness range 4 mm to 8 mm) Bimetallic strip size – 16 mm Square & 20 mm square. Welding Processes– MIG, MMAW 3 Erection, alignment, fairing welding and drysurvey of erection joints of Superstructure Aluminium + Steel Blocks. Weight : 25 Tonnes No.of Blocks: 3 Nos. Weld length : Butt - 90 M & Fillet – 125 M Material DMR249A (Thickness range 4 mm- 6mm) DNV- 5083 Grade H116 (Thickness range 4 mm-6mm) Bimetallic strip size – 16 mm Square & 20 mm square. Welding Processes– MIG, MMAW 3 Tank testing APT, HST as per Tank testing plan Air Pressure Test - 27 Tanks Hydrostatic Test - 15 Tanks. Range Volume of Tanks: Less than 10 M3 – 18 Nos 10 M3 to 30 M3 – 8 Nos. More than 30 M3 – 1 No. 4 Removal of lifting lugs, carlings & additional supports and shore pockets. For all 22 blocks 5 Revision works allocated by the officer in charge during the erection works including drysurvey. 22 T (Steel – 18 T, Al – 2.4 T, Steel + Al – 1.64 T) 6 Misc works – Fitment of datum plates, machinery foundations, carlings, supports etc and removal of temporary supports 2 T 7 Rectification of all undulations / fair outs / dents on decks, bulkheads and hull exterior up to the standards as per IACS rule-book. Based on site condition. Undulations formed on hell, deck and Bulkheads due to handling and transportation of blocks and welding deformation etc. Approx. Area 1500 M2

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