tender for supply of economizer topbank coils along with accessories i.e. angle, spectacle, scallop pad, erosion shield, cassette baffles and all necessary support as per design of unit no.#3, sgtps, mppgcl, birsinghpur. , description as per schedule , for material supply supply of economizer top bank coils (from bottom connection terminal joint to economiser outlet header stub joint) along with accessories i.e. angle, spectacle, scallop pad, erosion shield, cassette baffles and all necessary support as per design of unit no.#3, sgtps, mppgcl, birsinghpur. material specification:- tube : sa 210 gr.a1 (cold drawn seamless) attachment: sa 387 gr.22 (spectacle plate & scallop pad) cassette baffle (at both ends) along with ht fasteners :sa 240 gr.304 protection shield (for top tube only) :sa 240 gr.304 angles- is:2062, pin:- sa 182 gr f22 bolts & nuts :- sa 193 & sa194 size:- tube : 38.1(od) x 3.6 (thickness) & 4.5 mm (inner bend) attachment :8 mm thickness, 16 mm thickness plate cassette baffle & protection shield :3.0 mm thickness (as per drawing) .