FINISHED STEEL

Products obtained upon hot rolling/forging of Semi-finished steel (blooms/billets/slabs). These cover 2 broad categories of products, namely Long Products and Flat Products :

A) LONG PRODUCTS:

Finished steel products produced normally by hot rolling/ forging of Bloom/billets/pencil ingots into useable shape/sizes.

These are normally supplied in straight length/ cut length except Wire rods which are supplied in irregularly wound coils.

Different types of long products are :

BARS & RODS: Long steel products obtained normally by hot rolling/forging of billets/ blooms. They include Rounds, Flats (flat bars), Squares, Hexagons, Octagons etc. which find direct use in in a wide variety of products in Engg, & Agricultural, House hold, Furniture sector etc. with/without further processing.
CTD (COLD-WORKED TWISTED & DEFORMED)/ TMT (THERMO MECHANICALLY TREATED) BAR & RODS: Hot rolled round bars/rods with indentations/ribs normally supplied in straight length or in folded bundles. Used directly in civil construction.
WIRE ROD: Hot rolled plain bar/rods (i.e without indentation) in Coil Form , normally used to produce Steel Wires and at times Steel Bright Bars.
ANGLES, SHAPES & SECTION: Hot rolled Structural Sections obtained by hot rolling of blooms/billets. They include Angles, Channels, Girders, Joist, I Beams, H Beams etc used in civil/mechanical construction.
RAILS: Hot rolled Rail Sections obtained upon hot rolling of Blooms/Billets. Used in rail ways/tram ways, on which rail/tram moves.
WIRES: Wires are produced by cold drawing of wire rod through a die. They are normally supplied in coils.
BRIGHT BARS: There are cold drawn/ ground/ Peeled plain bars produced from hot rolled plain bars/ wire rods.

B) FLAT PRODUCTS (FLAT ROLLED PRODUCTS):

Finished steel flat products are produced from slabs/thin slabs in rolling mills using flat rolls. These are supplied in Hot Rolled (HR), Cold Rolled (CR) or in Coated condition depending upon the requirement.

Different types of flat products are :

PLATE: Thick flat finished product of width: +500mm & Thickness: (+)5mm which are supplied in cut/straight length. Plates are normally produced/supplied in as hot rolled condition with or without specific heat treatments.
SHEET: Thin flat finished steel products, Width : +500MM, Thickness : (-) 5mm, Supplied in cut/straight length. Sheets are produced/ supplied in hot rolled /cold rolled/coated condition and accordingly, known as Hot Rolled (HR) Sheets or Cold Rolled (CR) Sheets or Coated Sheets.
STRIPS: Hot/cold/coated Flat rolled products, supplied in regularly wound coils of super imposed layers. Accordingly, known as HR Strips or CR Strips or Coated Strips. Depending upon width, strips are sub-classified as wide strip or narrow strip as under :
WIDE STRIPS : Strips of widths 600mm & above. Also known as Coils in India and Wide Coils in Europe etc. Accordingly, the terms HR Coils/ Wide Coils or CR Coils/ Wide Coils etc. are commonly used.
NARROW STRIPS : Strips of widths less than 600mm.
HOT ROLLED (HR) FLAT PRODUCTS are produced by re-rolling of slabs/thin slabs at high temperature (above 1000 Degree C) in Plate Mills (which produce plates) or in Hot Strip Mills (which produce strips) . Hot Rolled Strips are cut into straight length to produce HR Sheets or Thin Plates.

COLD ROLLED (CR) STRIPS are produced by cold rolling of HR Strips in Cold Rolling Mills (normally at room temperature). CR Strips are cut to produce CR sheet. CR Strips/sheets are characterised by lower thickness, better/bright finish, closer dimensional tolerance and specific mechanical/metallurgical properties. They are directly used in automobiles (cars/ scooters, motorcycles etc.), white goods, consumer durable etc. or for production of coated sheet products.

Cold Rolled Sheets/Strips are supplied in as rolled condition (CRFH- Cold Rolled Full Hard) or in closed annealed (CRCA –Cold Rolled Close Annealed) condition or in closed annealed & skin passed/temper passed condition, depending upon the requirement of the end users.