Company: MT
Filing Date: 2025-03-10
Form Type: 20-F
Source: 0001243429-25-000017
Chunk: 83

Company: ArcelorMittal
Filing Date: 2025-03-10
Form: 20-F
Chunk 83
---
 thick. Hot-rolled sheet. Hot-rolled sheet is minimally processed steel that is used in the manufacture of various non-surface critical applications, such as automobile suspension arms, frames, wheels, and other unexposed parts in auto and truck bodies, agricultural equipment, construction products, machinery, tubing, pipe and guard rails. All flat-rolled steel sheet is initially hot-rolled, a process that consists of passing a cast slab through a multi-stand rolling mill to reduce its thickness to typically between 2 millimeters and 25 millimeters, depending on the final product. Flat-rolled steel sheet that has been wound is referred to as “coiled”. Alternatively, hot-rolled sheet can be produced using the thin slab casting and rolling process, where the hot- rolled sheet thickness produced can be less than one millimeter. This process is generally used in a flat products mini-mill, but some integrated examples exist as well. Cold-rolled sheet. Cold-rolled sheet is hot-rolled sheet that has been further processed through a pickle line, which is an acid bath that removes scaling from steel’s surface, and then successively passed through a rolling mill without reheating until the desired gauge, or thickness, and other physical properties have been achieved. Cold-rolling reduces gauge and hardens the steel and, when further processed through an annealing furnace and a temper mill, improves uniformity, ductility and formability. Cold-rolling can also impart various surface finishes and textures. Cold-rolled steel is used in applications that demand higher surface quality or finish, such as exposed automobile and appliance panels. As a result, the prices of cold- rolled sheet are higher than the prices of hot-rolled sheet. Typically, cold-rolled sheet is coated or painted prior to sale to an end-user. Coated sheet . Coated sheet is generally cold-rolled steel that has been coated with zinc, aluminum or a combination thereof to render it corrosion-resistant and to improve its paintability. Hot-dipped galvanized, electro-galvanized and aluminized products are types of coated sheet and in recent times hot dipped coatings composed of zinc, magnesium and aluminum have grown in popularity. These are also the highest value- added sheet products because they require the greatest degree of processing and tend to have the strictest quality requirements. Coated sheet is used for many applications, often where exposed to the elements, such as automobile exteriors, major household appliances, roofing and siding, heating and air conditioning equipment, air ducts and switch boxes