HMS 1&2 200-206 (Mix of 80% HMS1 and 20% HMS2) The scrap consists out of a mix of mill scrap (stampings, cuttings, bars, etc.), Industrial scrap (nuts, bolts, misc. pieces, etc), auto and truck frames. ship scrap (fittings, plate pieces, and parts), construction scrap (plate, bars, angle pieces, rods, steel pipe, etc.) and miscellaneous commercial scrap (casings & frames.). Non-Metal impurities total of 1% (one percent), or less. HMS 1 - ISRI Code 200: Heavy melting steel. Wrought iron and/or steel scrap ¼ inch or steel scrap ¼ inch and over in thickness. Individual pieces not over 60 x 24 inches (charging box size) prepared in a manner to insure compact charging. 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 prepared in a manner to ensure compact charging. HMS 2 - ISRI Code 204: Same as ISRI 203 but max size 36x18 inches. HMS 2 - ISRI Code 205: Same as ISRI 204 but free of sheet iron or thin-gauged material.