Heavy melting steel (HMS) or heavy melting scrap is a designation for recyclable steel and wrought iron. It 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. The Institute of Scrap Recycling Industries breaks up the categories further:[1]
ISRI 200 (HMS 1): Wrought iron or steel scrap 1⁄4 inch (6.35 mm) and larger in thickness. All pieces must be smaller than 60 in × 24 in (1,524 mm × 610 mm)
ISRI 201 (HMS 1): Same as ISRI 200 except pieces must be smaller than 36 in × 18 in (914 mm × 457 mm).
ISRI 202 (HMS 1): Same as ISRI 200 except pieces must be smaller than 60 in × 18 in (1,524 mm × 457 mm).
ISRI 203 (HMS 2): Wrought iron or steel scrap, black and galvanized, 1⁄8 inch (3.175 mm) and larger in thickness.
ISRI 204 (HMS 2): Same as ISRI 203 except pieces [1]must be smaller than 36 in × 18 in (914 mm × 457 mm).
ISRI 205 (HMS 2): Same as ISRI 204 except it may contain automotive scrap except for thin gauge material.
ISRI 206 (HMS 2): Same as ISRI 205 except pieces must be smaller than 60 in × 18 in (1,524 mm × 457 mm).
HMS 1 and 2 are widely traded, particularly in the western hemisphere.
Both HMS 1 and 2 comprise obsolete scrap only - iron and steel recovered from items demolished or dismantled at the end of their life.
HMS 1 is the term for heavier scrap which has a density of at least 0.7 tons per cubic meter, whereas HMS 2 would be lighter steel scrap
Because both grades guarantee a minimum piece thickness – at least 1⁄4 inch (6.35 mm) for HMS 1, and 1⁄8 inch (3.175 mm) for HMS 2 – consignments have a high density. Both also have defined maximum dimensions (usually 60 in × 24 in or 1,524 mm × 610 mm), 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 ISRI (North America’s Institute of Scrap Recycling Industries) codes. HMS is usually traded as a blend of 1 and 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.[2]
^ abScrap Specifications Circular, Institute of Scrap Recycling Industries, Inc., 2022
^"Steel Glossary". Steel Business Briefing.
and 26 Related for: Heavy melting steel information
Heavymeltingsteel (HMS) or heavymelting scrap is a designation for recyclable steel and wrought iron. It is broken up into two major categories: HMS...
000 kilograms) of steel saves 1.1 metric tons of iron ore, 630 kilograms of coal, and 55 kilograms of limestone. Heavymeltingsteel – Industrial or commercial...
HMS Networks, a company in the field of industrial communications Heavymeltingsteel Helmet mounted sight Hybrid Management Sub-Layer, in networking Munter...
steels, but such are not common. Cast iron is not malleable even when hot, but it can be formed by casting as it has a lower melting point than steel...
000 psi). Stainless steel is a steel, and as such its melting point is near that of ordinary steel, and much higher than the melting points of aluminium...
and mechanical properties evolution mechanism of maraging steel 300 by selective laser melting", Materials Science and Engineering: A, 703: 116–123, doi:10...
the melting of the charge, even though scrap may move under the electrodes as it melts. The mast arms holding the electrodes can either carry heavy busbars...
Kawasaki Heavy Industries Ltd. (KHI) (川崎重工業株式会社, Kawasaki Jūkōgyō Kabushiki-gaisha) is a Japanese public multinational corporation manufacturer of motorcycles...
scrap melting, a ladle furnace or vacuum furnace for precision control of chemistry, a strip or billet continuous caster for converting molten steel to solid...
metal items are joined by melting and flowing a filler metal into the joint, with the filler metal having a lower melting point than the adjoining metal...
process turned steelmaking into a heavy industry. Today there are two major commercial processes for making steel, namely basic oxygen steelmaking, which...
titanium have some of the characteristics of heavy metals, such as higher melting points; post-transition heavy metals like zinc, cadmium, and lead have some...
Madness in Heavy Metal Music. Wesleyan University Press. p. 10. ISBN 0-8195-6260-2 Hodgson, Peter (9 April 2011). "METAL 101: Face-melting guitar tones"...
metal may be a chemical element such as iron; an alloy such as stainless steel; or a molecular compound such as polymeric sulfur nitride. In physics, a...
was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace....
glass melting furnace is designed to melt raw materials into glass. Depending on the intended use, there are various designs of glass melting furnaces...
rails, as well as a major producer of wide steel plates and other steel products. The plant also produces steel and markets various chemical by-products...
A melting tank is a tank used by manufacturing companies to manufacture a variety of products. Melting tanks can be designed to melt products such as:...
metallic iron, without melting it (below 1,200 °C (2,190 °F)). The direct reduction process is comparatively energy efficient. Steel made using DRI requires...
a single melting point. This melting point is lower than that of any of the constituents, and no change in the mixture will lower the melting point any...
finished shape. Arc welding is used to assemble heavysteel structures, where the base metal is heated to melting by the arc's heat. An electric arc furnace...
alloys. A good example is high-speed steel, which can contain as much as 18% tungsten. Tungsten's high melting point makes tungsten a good material for...
Ever Foreplay - Hot 'N Heavy (EP) Formel 1 - Live im Stahlwerk Girlschool - Nightmare at Maple Cross Giuffria - Silk + Steel Grave Digger - War Games...
bonded without heat, and solid-state welding processes which bond without melting, such as pressure, cold welding, and diffusion bonding. Metal welding is...
Iron Age. In the modern world, iron alloys, such as steel, stainless steel, cast iron and special steels, are by far the most common industrial metals, due...
Global Information