tender for deshelling & reshelling of mills rollers , deshelling & reshelling of mills rollers , deshelling and reshelling of semi couch top roller pitch 50mm with grooving, size- dia 990 x 1830 mm length as per drg. no. ss0124-05251001-011-0011 material: coarse grain cast iron having hardness 180-210 bhn and conforming to is 11201-1985 total carbon- 3.20 to 3.6% maganase- 2.2 to 3.2%] silicon- 1.2 to 2.2% phosphors - 0.5% max sulphur-0.15% max , deshelling and reshelling of discharge mill roller with grooving, size dia 990 x 1830 mm length, pitch-30mm as per drg. no. ss0124-05251001-011-0011 material:-coarse grain cast iron having hardness 180-120 bhm & conforming to is 11201-1985. total carbon- 3.20 to 3.6% maganase- 2.2 to 3.2%] silicon- 1.2 to 2.2% phosphors - 0.5% max sulphur-0.15% max , deshelling and reshelling of discharge mill roller with grooving, size dia 990 x 1830 mm length, pitch-50mm as per drg. no. ss0124-05251001-011-0011 material:-coarse grain cast iron having hardness 180-120 bhm & conforming to is 11201-1985. total carbon- 3.20 to 3.6% maganase- 2.2 to 3.2%] silicon- 1.2 to 2.2% phosphors - 0.5% max sulphur-0.15% max