tender for s.s. tubes of 304 grade tender for s.s. tubes of 304 grade , s.s. tubes of 304 grade as per specification according to is. 13316/1992, hydraulically tested at 1000 p.s.i. annealed and pickled at 1100 deg. centigrade tensile strength 650 kns/mm2 elongation 50%(a) size : od = 45 mm, length = 2010 mm, gauge = 16 , s.s. tubes of 304 grade as per specification according to is. 13316/1992, hydraulically tested at 1000 p.s.i. annealed and pickled at 1100 deg. centigrade tensile strength 650 kns/mm2 elongation 50%(b) size: od= 45 mm, length = 4065 mm, gauge=16 , s.s. tubes of 304 grade as per specification according to is. 13316/1992, hydraulically tested at 1000 p.s.i. annealed and pickled at 1100 deg. centigrade tensile strength 650 kns/mm2 elongation 50%(c) size : od=100 mm, length = 1225 mm, gauge =16 , s.s. tubes of 304 grade as per specification according to is. 13316/1992, hydraulically tested at 1000 p.s.i. annealed and pickled at 1100 deg. centigrade tensile strength 650 kns/mm2 elongation 50%(d) size : od =102 mm, length = 900 mm, gauge =16note:-the following physical tests are to be carried out and all tests certificates should be attached with the invoices.(i) flattening test.(ii) reverse bend test.(iii) reverse flattening test.(iv) hardness test.)