SPECIFICATION - Heavy Metal Scrap:

Heavy Melting Steel/Scrap (HMS), is a designation for recyclable steel and  wrought iron. There are 2 types of HMS 1 and 2. The difference between the two is HMS 1 does not contain galvanized and blackened steel, whereas HMS 2 does.

HMS 1&2 ( 80/20) IRSI 200-206: Steel scrap defined as HMS 1 & 2 in an 80/20 mix under IRSI codes 200 through 206. Non metal impurities total 1% (one percent) or less - no radiation, arms, ammunition, bombs, shells, mines, cartridges, sealed gas cylinders. High carbon steel is not included in this scrap -we sell that as a separate item.

HMS 1 - IRSI CODES HMS 1 - IRSI 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 1 - IRSI Code 201: Heavy melting steel 3 feet x 18 inches. Wrought iron or steel scrap ¼ inch over in thickness individual pieces not over 36 inches x 18 inches (charging box size) prepared in a manner to insure compact charging.

HMS 1 - IRSI Code 202: Heavy melting steel 5 feet x 18 inches. Wrought iron or steel scrap1.4 inch and over n thickness individual pieces not over 60 inches x 18 inches (charging box size) prepared in a manner to insure compact charging.

HMS 2 - IRSI CODES HMS 2 - IRSI 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 - IRSI Code 204: Same as IRSI 203 but max size 36x18 inches.

HMS 2 - IRSI Code 205: Same as IRSI 204 but free of sheet iron or thin gauged material.

HMS 2 - IRSI Code 206: Same as IRSI 204, but max size 60 x 18 inches.

Both HMS 1 & 2 comprise obsolete scrap only. That is iron and steel recovered from items demolished or dismantled at the end of their life.

Because both grades guarantee a minimum piece thickness – at least 1/4inch (6.3mm) for HMS 1, and 1/8in for HMS 2 consignments have a high density. Both also have defined maximum dimensions (usually 60in x 24in), and should be prepared to facilitate handling and charging to a furnace.

This density, sizing and preparation makes for efficient furnace operation by minimising the time to charge enough scrap for a full melt. In contrast, thin mixed scrap greatly increases charging time, cutting furnace productivity.

Variations on maximum piece size are covered by the Institutions of the  Scrap Recycling Industries in various countries.  HMS is usually traded as a blend of 1 & 2, either a premium blend (80:20) or lower grade mixes (70:30) and (60:40). Other major heavy scrap grades include Japan’s H2 and A3 from the CIS.

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