What We Need
- Mill Scale directly from Steel Mills or Outsourced Steel Service Companies
- Scrap Metals from Recycle Yards & Demolition Companies
- Bare Bright, Copper 1 & 2 from Recycle Yards & Demolition Companies
- Other goods; Aluminum or EAF Dust (very high Zinc content)
- Mill Steel / Mill Scale / Iron Oxide
Mill Scale is the flaky surface of hot-rolled steel, iron oxides consisting of iron (II, III) oxide, hematite and magnetite. Mill scale is formed on the outer surfaces of plates, sheets or profiles when they are being produced by rolling red hot iron or steel billet in rolling mills. In Asian countries, mill scale is used to produce steel. In the US, mill scale is primarily used by cement manufactures. Prior to purchasing, the mill scale must meet certain requirements. We will visibly inspect a company's mill scale pile and submit a sample to the lab for chemical analysis.
Below are examples of what we look for in each sample.
CHEMICAL COMPOSITION
Total Fe: > 68% basis
SiO2: < 2.5%
CaO: < 0.5%
Moisture: < 3%
- HMS1&2
HMS1&2 is the most common scrap in the steel scrap business. Scrap with copper contents 0.25% max should be free of alloys. The steel scrap must be clean without heavy oxidation, grease, mud, dirt, cast iron, tin, sand mud, oil or wastes and maximum harmless impurities is of less than 0.5%. The scrap should be FREE from non-ferrous materials, excessive rust and corrosions. The scrap is completely free of any types of arms, ammunitions or explosives (bombs, torpedoes, mines, shells, cartridges) in any form. It must also be free of radiation, radioactive contamination and poisonous materials.