Fabrication and Erection of SS304L Piping Subassemblies and associated MS structural works for LLW Trench System of Block 1 and 2 of FRP, FRFCF Project

Amount

STAINLESS STEEL WORKS

SS PIPE FABRICATION & ERECTION: Handling, transportation of stainless steel seamless / welded pipes of 304L quality (supplied as Free issue materials - FIM by Purchaser), marking, cutting, fabrication (excluding welding), surface treatment of pipes as per approved procedure and erection of pipes on fabricated supports at site, as per the approved drawings. Stainless Steel Pipe, Seamless / Welded as per ASME B 36.19, Material ASTM A 312 TP 304 L. IGC Test as per ASTM A 262 Practice A&E.

40 NB Sch 40S

50 NB Sch 40S

80 NB Sch 40S

100 NB Sch 40S

150 NB Sch 40S

200 NB Sch 10

PIPE BUTT WELDING: Gas Tungsten Arc butt welding of stainless steel pipes of grade 304L quality, using Argon gas for shielding and purging, ER 308L filler wire as consumable, Liquid penetrant (LP) examination and local passivation of the weld joints as per specifications.

Sch.40 Pipes with nominal bore 40mm and higher

Sch.10 Pipes with nominal bore greater than 200 mm

FILLET WELDING:

Gas Tungsten Arc fillet welding of pipe to pipe or dummy plate, etc of stainless steel pipe lines. Welding shall be carried out using ER308L filler wire with Argon gas for shielding and purging followed by Liquid penetrant (LP) examination and local passivation as per specifications.

Gas Tungsten Arc fillet welding of SS U-Clamp to stainless steel Plate. Welding shall be carried out using ER308L filler wire with Argon gas for shielding followed by Liquid penetrant (LP) examination and local passivation as per specifications.

Gas Tungsten Arc fillet welding of SS poison plate to MS angle / channel / Plate, etc. Dissimilar welding shall be carried out using ER309L filler wire with Argon gas for shielding followed by 10% Liquid penetrant (LP) examination as per specifications.

BUTT WELD FITTINGS: Supply & Erection of the following SS304L Butt weld Fittings as per ASME B 16.9 and material ASTM A403 WP304L. All sizes shall be tested for 10% UT,100% DPT & 100% hydro-testing. This includes surface treatment of fittings before erection.

90 ELBOWS

45 ELBOWS

Equal Tees

Unequal Tees

Concentric Reducers

Supply, handling, transportation, marking, cutting, bending, fabrication, surface treatment and installation of dummy plates, pioson plates, U-clamps, etc made from 3 to 6mm thick SS 304L grade conforming to ASTM A240.

CARBON STEEL WORKS

PIPE SUPPORT (Supply): General structural fabrication including supply of carbon steel angles, channels, plates, etc (Material conforming to IS 2062 Gr B), inclusive of handling, transportation, cutting, fabrication & welding of support structures, installation & welding along with EPs at site, MMA welding using E 7018 electrodes of approved makes, LP examination of each weld pass after thorough cleaning, site installation and painting of structure including EPs (one coat of primer and two coats of epoxy painting of approved make and colour) as appropriate. The supply shall include rolled sections like channel (ISMC75, ISMC100, ISMC150, ISMC200, etc), angles (ISA50x50x6, ISA75x75x6, etc), plates as required for use as per tender drawing and technical specification. This work includes chipping of concrete, preparation of EP, EP painting, etc as required for the completion of work.

ANCHOR FASTENERS: Supply & fixing of anchor fasteners of approved make along with bolts & washers for fixing. Drilling and fixing shall be as per manufacturer’s recommendation. Type and MoC as per HILTI or equivalent, Light duty anchor (Carbon steel). Size: M20mmx200mm Long.

PRESSURE TEST: Hdyro-testing of pipe lines using DM water as per specifications given in the tender.

Complete line hydro-testing. This includes testing of each main line with associated sub-lines / branches.

Pipe EP hyrdo-testing includes chipping, cleaning, DM water flow testing, choke removal, integrity checking, local passivation of exposed surface, etc.

Stainless Steel Floor grating / drain: Supply and installation of upto 6" SS floor grating at varoius drain points as per site requirement. The work involves chipping, cleaning, DM water flow testing, cement plastering, finishing and associated works.

X-RAY: X-ray examination of butt welded pipe joints as per the technical specifications of the tender using conventional X-ray machine. The supply of X-ray machine, film, dark room facility, consumables for film washing, skilled and unskilled personnel are under the scope of the contractor. Note: X-ray examination of butt welded pipe joints calls for 10% X-radiography. The acceptance criteria shall be as per UW-52 of ASME, Section-VIII, Division-1.

SP Enterprises