Steel Scraps is a designation for recyclable steel and wrought iron. There are two grades generally used in the steel scrap market. One is European standard called as HMS (Heavy Melting Steel). HMS is broken up into two major categories: HMS 1 and HMS 2. The difference between the two is HMS 1 does not contain galvanized and blackened steel, whereas HMS 2 does. The second one is Russian standard called as GOST. Under the Russian standards A3 according to GOST 2787-75 is categorized as HMS1/HMS 80/20 where usually the scrap thickness, between 4-6 mm, is on the level of 10-14% and the rest is thicker than 6 mm.