HEAVY MELTING SCRAP (HMS1&2)
Heavy Melting Scrap (HMS)
Heavy melting steel (HMS) or heavy melting scrap is broken up into two major categories: HMS 1 and HMS 2, where HMS 1 does not contain galvanized and blackened steel, whereas HMS 2 does. HMS is typically traded as a blend of 1 and 2, either a premium blend (80/20) or lower grade mixes (70/30) and (60/40). For example, HMS 1 and 2 (80/20) should consist of HMS 1 and 2 in the ratio of 80% (HMS 1) and 20% (HMS 2).
Each grade guarantees a minimum piece thickness: at least 1/4 inch (6.3 mm) for HMS 1, and 1/8 in for HMS 2.
HMS 1&2 (80:20) and HMS1 (90:10):
HMS 1&2 (80:20) is the most traded grade of scrap metal globally. Since the yields around 20 tons in a 20 feet container, obviously the density of this grade is a bit lighter than HMS1&2 (90:10). Conforming to ISRI 200 to 206, this grade of scrap comes mostly from countries which are not industrialized as this will comprise of household scrap, demolition scrap and re-furbishing scrap. From recycled ship following kind of scrap comes:
Light Melting Scrap,
Heavy Melting Scrap,
Re-roll-able Plates from 6 mm to 40 mm,
Cast Iron Scrap,
MS Shafting : EX-18, EX-19, EX-21, EX-24 with hole & without hole.
HMS 1 and 2 specifications as defined by ISRI (North America’s Institute of Scrap Recycling Industries):
H.M.S.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 60×24 inches (charging box size) prepared in a manner to insure compact charging.
H.M.S.1 – ISRI Code 201: Heavy melting steel 3 feet x 18 inches. Wrought iron and/or steel scrap ¼ inch and over in thickness. Individual pieces not over 36×18 inches (charging box size) prepared in a manner to insure compact charging.
H.M.S.1 – ISRI Code 202: Heavy melting steel 5 feet x 18 inches. Wrought iron and/or steel scrap ¼ inch and over in thickness. Individual pieces not over 60×18 inches (charging box size) prepared in a manner to insure compact charging.
H.M.S.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 N°1 heavy melting steel. Prepared in a manner to insure compact charging.
H.M.S.2 – ISRI Code 204: Heavy melting steel. Wrought iron and steel scrap, black and galvanized, max size 36×18 inches. May include all automobile scrap properly prepared.
H.M.S.2 – ISRI Code 205: Heavy melting steel. Wrought iron and steel scrap, black and galvanized, maximum size 36 x 18 inches. May include automobile scrap properly prepared, however, to be free of sheet iron or thin gauged material.
H.M.S.2 – ISRI Code 206: Heavy melting steel max size 5 feet x18 inches. Wrought iron and steel scrap, black and galvanized, maximum size 60 x 18 inches. May include automobile scrap, properly prepared, however, to be free of sheet iron or thin gauged material.