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 GOST-7173-75 and R-65 GOST-8165-75 R50 (51.67 KG/M) GOST 7173-75 R65 (64.72 KG/M) GOST 8165-75 In ferrous we mainly deal in HMS1 & 2 Material Specification Heavy Melting Scrap (HMS 1& 2) ,80% HMS 1 & 20 % HMS 2 confirming  to ISRI 200-206 HMS 1 ISRI Code 200: heavy melting steel. Wrought iron and/or Steel scrap inch or steel scrap inch and over in thickness. Individual pieces not over 60 x 24 inches HMS 1 ISRI Code 201: heavy melting steel 3 feet x 18 inches. Wrought iron or steel scrap HMS 1 ISRI Code 202: heavy melting steel 5 feet x 18 inches. Wrought iron or steel scrap HMS 2 ISRI Code 203: heavy melting steel. Wrought iron or Steel scrap, Black and Galvanized. 1/8 inch and over in thickness, charging box size to include material not suitable as no.1 heavy melting steel. HMS 2 ISRI Code 204: same as ISRI 203 but max size 36-18 inches. HMS 2 ISRI Code 205: same as ISRI 204 but free of sheet iron or thin-gauged material. HMS 2 ISRI Code 206: same as ISRI 204, but max size 60 x 18 inches