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

Sr No	CorrigendumDate	Corrigendum	CorrigendumType	NewSubmissionDate
1	05-02-2025	Corrigendum for Extension of bid submission date and clause amendment	Date	10-02-2025

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