procurement of primary super heater bank coil along with accessories i.e. suction support, spacer armchair, spacer bedstead, stringer coat hook, scallop pad, erosion shield, cassette baffles and necessary support of unit 3 n 4 sgtps, sgtps, mppgcl procurement of primary super heater bank coil along with accessories i.e. suction support, spacer armchair, spacer bedstead, stringer coat hook, scallop pad, erosion shield, cassette baffles and necessary support as per design of unit no. 3 n 4 , primary super heater coils from inlet header to outlet terminal joints along with accessories and all necessary support as per design of boiler: material specification:- tube : bs 3059 (1978)- 243. s2 –pt2-cat 2/ asme sa-213 t11 section support: bs 970 pt4-310-s24 spacer: bs1504-622 stringer coat hook: bs1648 gre attachment: scallop pad: sa 387 gr.22 size:- tube : 51mm(od) x 4.9mm (thickness) & 51mm (od) x 5.9 mm (thickness)(inner bend), attachment :scallop pad : 16 mm thickness plate and all other accessories as per design and tender schedule.