TYPES OF STEEL

There are a very large number of shapes and types of steel products. The wide variety of steels available in the market is due to the fact that each of its applications requires changes in composition and shape.

Regarding the chemical composition of steel, processing, controls and testing (in order to meet customer specifications), as well as its end use, the steel ratings are:

Carbon Steels:

They are low carbon or low alloy steels of broadly defined chemical composition.

Steels Alloy/Special

They are alloyed or high carbon steels of narrowly defined chemical composition for all elements and rigid specifications.

Mechanical construction steels:

They are carbon and low alloy steels for forging, bearings, springs, shafts, machined parts, etc.

Tool steels:

These are high carbon or high alloy steels for the manufacture of tools and dies for hot and cold work, including fast steels.

GEOMETRIC FORM

Another form of classification added to steel is its geometric shape. The categories are:

Semi finished:

Products coming from continuous casting process or roughing rolling destined for subsequent processing lamination or hot forging.

  • Plates
  • Blocks
  • Billets

Flat Products:

Steel products, the result of a rolling process whose width is extremely greater than the thickness (L> E), and are sold in the form of plates and coils of carbon and special steels.

Uncoated, in "carbon steels":

Coils and thick plates of hot strip mill – LTQ (5mm < E > 12,7mm)

  • Coils and thick plates of hot strip mill - LTQ (5mm 12.7mm)
  • Coils and thick plates of thick plates - LCG (E > 12,7 mm)
  • Coils and thin plates hot rolled (BQ/CFQ)
  • Coils and thin plates cold rolled (BF/CFF)

Coated in "carbon steel":

  • Packing Sheets (tinplate - tin-plated - and chrome leaves)
  • Electro-galvanized coils and sheets (EG - Electrolytic Galvanized)
  • Hot-dip galvanized coils and sheets (HDG - Hot Dipped Galvanized)
  • Aluminum-zinc alloy coils and sheets
  • Pre-painted coils and sheets

In "special steels":

  • Silicon steel coils and sheets (electric sheets)
  • Stainless steel coils and sheets
  • Coils and plates in high carbon steels (C> = 0.50%) and other alloy steels

Long Products:

Steel products, resulting from the rolling process, whose cross sections have polygonal shape and their length is extremely larger than the largest dimension of the section, being offered in carbon and special steels.

In carbon steels:

  • Light profiles (h < 80 mm)
  • Average profiles (80 mm < h <= 150 mm)
  • Heavy profiles (h > 150 mm)
  • Rebar
  • Wire rod (mainly for wires).
  • Bars (quality construction)
  • Seamless pipes
  • Drawn

In alloy / special steels:

  • Wire rod (for screws and others)
  • Steel bars in mechanical construction
  • Tool steel bars
  • Stainless steel and valve bars.
  • Seamless pipes
  • Drawn

BRAZILIAN STEEL PRODUCERS

Flat Products
Products
Plates
Uncoated Sheets and Coils
Thick plates and coils
Hot Plates and Coils
Cold Rolls and Coils
Coated Sheets and Coils
Packaging Sheets
Galvanized sheet Hot
Electrogalvanized plates
Plates Alloys Aluminum-Zinc
Pre-painted plates
Other Coated Sheets and Coils
Special Sheets and Coils
stainless plates
Silicon plates
plates and coils of other alloy steels
Companies
Aperam
ArcelorMittal Tubarão
CSP
Grupo Gerdau
Ternium
Usiminas
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Long products
Products
Ingots, Blocks and Billets
Bars
Carbon steel
steel mech. const. alloyed
Stainless steel
Tool Steel
Rebar
wire rod
Profiles
Light
Medium and Heavy
Seamless Tubes
Companies
ArcelorMittal Aços Longos
ArcelorMittal Sul Fluminense
Aço Verde do Brasil
Grupo Gerdau
Sinobras
Vallourec
Villares Metals
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Drawn
Products
Wires
Bars
Companies
ArcelorMittal Aços Longos
ArcelorMittal Sul Fluminense
Grupo Gerdau
Sinobras
Villares Metals
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  • Flat Products

    Aperam

    • Plates
    Uncoated Sheets and Coils
    • Thick plates and coils
    • Hot Plates and Coils
    • Cold Rolls and Coils
    Special Sheets and Coils
    • stainless plates
    • Silicon plates
    • plates and coils of other alloy steels

    ArcelorMittal Tubarão

    • Plates
    Uncoated Sheets and Coils
    • Thick plates and coils
    • Hot Plates and Coils
    • Cold Rolls and Coils
    Coated Sheets and Coils
    • Galvanized sheet Hot
    • Plates Alloys Aluminum-Zinc

    CSP

    • Plates

    Grupo Gerdau

    • Plates
    Uncoated Sheets and Coils
    • Thick plates and coils
    • Hot Plates and Coils

    Ternium

    • Plates

    Usiminas

    • Plates
    Uncoated Sheets and Coils
    • Thick plates and coils
    • Hot Plates and Coils
    • Cold Rolls and Coils
    Coated Sheets and Coils
    • Galvanized sheet Hot
    • Electrogalvanized plates
    • Other Coated Sheets and Coils
  • Long products

    ArcelorMittal Aços Longos

    • Ingots, Blocks and Billets
    Bars
    • Carbon steel
    • Rebar
    • wire rod
    Profiles
    • Light
    • Medium and Heavy

    ArcelorMittal Sul Fluminense

    • Ingots, Blocks and Billets
    Bars
    • Carbon steel
    • Rebar
    • wire rod
    Profiles
    • Light
    • Medium and Heavy

    Aço Verde do Brasil

    • Ingots, Blocks and Billets
    • Rebar
    • wire rod

    Grupo Gerdau

    • Ingots, Blocks and Billets
    Bars
    • Carbon steel
    • steel mech. const. alloyed
    • Stainless steel
    • Tool Steel
    • Rebar
    • wire rod
    Profiles
    • Light
    • Medium and Heavy

    Sinobras

    • Ingots, Blocks and Billets
    • Rebar
    • wire rod

    Vallourec

    • Ingots, Blocks and Billets
    Bars
    • Carbon steel
    • steel mech. const. alloyed
    • Seamless Tubes

    Villares Metals

    • Ingots, Blocks and Billets
    Bars
    • Carbon steel
    • steel mech. const. alloyed
    • Stainless steel
    • Tool Steel
    • wire rod
  • Drawn

    ArcelorMittal Aços Longos

    • Wires
    • Bars

    ArcelorMittal Sul Fluminense

    • Wires

    Grupo Gerdau

    • Wires
    • Bars

    Sinobras

    • Wires

    Villares Metals

    • Bars
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