tender for boiler ibr jobs. supply, dismantling, fabrication and erection of front header tube of boiler no.1 & 2 with seamless stubs 4.5 mm thickness suitable for 32 ton capacity, working pressure 35 kg/cm2, and superheated temp. 400°c as per ibr norm.a) supply boiler tube (58 nos. in both boiler), approx. length of 1 tube = 15 mtr. tube size – 63.5mm (od), 3.66mm thicknessb) material specification and fabrication tubes should be confirming to bs 3059 part 1 erw 320 (1978), min uts 3262kgf/cm², fabricated as per drawing/ sample and ibr normsc) dismantling & erection of front headers tubes = 58 nos. 2 supply, dismantling, fabrication and erection of super heater coils of boiler no. 1.a) supplysuper heater coils – 28 nos.coil size – 45mm (od), thickness 4.5mmb) material specificationc) coil material should be sa213 t22, fabricated as per drawing/ sample and ibr normsd) dismantling & erection of coils. 3 dismantling, supply, fabrication and erection of side header tubes with header (4 no.) of seamless pipe schedule 120 of boiler no. 2 with seamless stubs having 4.5mm thickness suitable for 32 ton capacity, working pressure 35 kg/cm2, and superheated temp. 380 ± 15 °c as per ibr norma) supply, bending and refitting of tubes and header with seamless stubs as per drawing and site requirement. refitting of tubes and header with hydraulic testing of boiler. total tubes = 68 nos. approx. length of 1 tube = 15 mtr. b) material specification tubes should be confirming to bs 3059 part 1 erw 320 (1978), type size 63.5mm odx3.6thick, min uts 3262kgf/cm², max. working pressure = 38kg/cm2, hydraulic test pressure = 50kg/cm2, fabricated as per drawing/ sample and ibr norms 4 connection of 5” seamless pipe (01 no.)schedule 80 to be provided from side header to front header with seamless bends at boiler no. 2 5 dismantling, supply and connection of 6” ? seamless nipple schedule 80,9” length at main distribution header