Chemical Composition Used Rails; C: 0, 54 - 0,82 Si: 0,18-0,40 Mn: 0, 60-1, 05 S: 0.04 max P: 0,035 max As.: 0, 01 max of Mass share Norms: R-50 GOST7173-75 and R-65 GOST-8165-75 The scrap consists of R-50 (51, 67 kg/m) R-65 (64,72 kg/m) Used Rail ISRI 27-29 ISRI-CODES; (27) Rail, Steel No. 1. Standard section tee rails, original weight 50 pounds per yard or heavier, 10 feet long and over. Suitable for re-rolling into bars and shapes. Free from bent and twisted rails, frog, switch, and guard rails, or rails with split heads and broken flanges. Continuous welded rail may be included provided no weld is over 9 inches from the end of the piece of rail. (28A) Rail, Steel No. 2 Cropped Rail Ends. Standard section, original weight of 50 pounds per yard and over, 18 inches long and under.