tender for boiler ibr jobs work=- 2 supply, dismantling, fabrication and erection of front header tube of boiler no. 1 & 2 with seam less stubs 4.5 mm thickness suitable for 32 ton capacity, working pressure 35 kg/cm2, superheated temperature 400° c as per ibr norm.a. supply: boiler tubes (58 nos. in both boilers). approx. length of 1 tube = 15 mtr. tube size: 63.5mm (od), 3.66mm thickness.b. material specification and fabrication: tubes should be confirming to bs 3059 part 1 er w 320 (1978), min uts 3262 kgf/cm2, fabricated as per drawing/sample and ibr norms.c. dismantling & erection of front header tubes = 58 nos. 3 supply, dismantling, fabrication and erection of side header tube of boiler no. 1 & 2 with seam less stubs 4.5 mm thickness suitable for 32 ton capacity, working pressure 35 kg/cm2, superheated temperature 400° c as per ibr norm.a. supply: boiler tubes (136 nos. in both boilers). approx. length of 1 tube = 14 mtr. tube size: 63.5mm (od), 3.66mm thickness.b. material specification and fabrication: tubes should be confirming to bs 3059 part 1 er w 320 (1978), min uts 3262 kgf/cm2, fabricated as per drawing/sample and ibr norms.c. dismantling & erection of front header tubes = 136 nos 4 dismantling of old economizer coils of boiler no. 1 & 2, supply, bending and refitting as per drawing and site requirement.a. supply: coils (56 nos. in both boilers). approx. length of 1 coil = 120 mtr. coil: 38.1mm (od), 4.5mm thickness.b. material specification and fabrication: coils should be confirming to bs 3059 part 1 erw 320 (1978), min uts 3262 kgf/cm2, fabricated as per drawing/sample and ibr norms. c. dismantling & erection of economizer coils = 56 nos 5 dismantling of old super heater coils of boiler no. 1 & 2, supply, bending and refitting as per drawing and site requirement.a. supply: coils (60 nos. in both boilers). approx. length of 1 coil = 34 mtr. coil size: 45 mm(od), 4.5mm thicknessb. material specification and fabrication: coils material should be sa213 t22, fabricated as per drawing/sample and ibr norms.c. dismantling & erection of super heater coils = 60 nos. 6 dismantling, supply, bending and erection of riser tubes of boiler no. 1 & 2.a. supply: tubes (40 nos. in both boilers). size: 76.2 mm (od), 3.66 mm thickness.b. material specification and fabrication: tubes should be confirming to bs 3059 part 1 erw 320 (1978), min uts 3262 kgf/cm2, fabricated as per drawing/sample and ibr norms.c. dismantling & erection of riser tubes = 40 nos. 7 supply, dismantling, fabrication and erection of bank tubes (row 1-12) of boiler no. 1 & 2 suitable for 32 ton capacity, working pressure 35 kg/cm 2 , and superheated temperature 400° c as per ibr norm.a. supply: boiler tubes (720 nos. in both boilers). approx. length of 1 tube = 12 mtr. tube size: 63.5mm(od), 3.66mm thickness.b. material specification and fabrication: tubes should be confirming to bs 3059 part 1 erw 320 (1978), min uts 3262 kgf/cm 2, fabricated as per drawing/sample and ibr norms.c. dismantling & erection of front header tubes = 720 nos.