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SteelTrade
SteelTrade

SteelTrade

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SteelTradeLevel 1
Asked: December 7, 20192019-12-07T22:45:29+00:00 2019-12-07T22:45:29+00:00In: Materials

How many types of steel are there?

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How many types of steel are there?

We see steel in different shapes and forms. However, some steel is flat and wide and others are longs and thinner. What are the different types of steel we have?

Are steel types and grades are the same things?

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    1. MetalGuru

      MetalGuru

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      MetalGuru Level 3
      2019-12-07T22:58:55+00:00Added an answer on December 7, 2019 at
      This answer was edited.

      There are three main types of steel (both carbon and stainless steel).

      Flats Steel

      These types are made from slab. These are in flats forms. Flat steel includes hot-rolled coil (HRC), cold-rolled coil (CRC), plates, metallic coated steel (HGD/EG, galfan, galvanume, tinplate), organic coated steel (PPGI) etc.

      Longs Steel

      These types of steel are made from billets and blooms. They are mainly used in building & construction. Longs steel includes rebar, wire rod, rails, bars etc.

      Pipes and Tubes

      Steel pipes and tubes can be seamless pipes, made from billets or welded pipes made from HRC/CRC/plate.

      When it comes to end-users and specifications, the most common grade is commercial grade. However, there are more than 4000 different grades of steel. Grades usually depend on applications and specifications. They are graded based on their physical, chemical, and environmental properties. There are various international standards organisations which set standards for steel. The most common one is the ASTM standards.

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    2. Sophia Cyrus

      Sophia Cyrus

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      Sophia Cyrus Level 2
      2019-12-27T15:22:48+00:00Added an answer on December 27, 2019 at

      Steel types can be categorised based on carbon contents.

      • Carbon steel, or plain-carbon steel, is steel where the main alloying element is carbon. Manganese must be less than 1.65%, silicon 0.60% and copper 0.60%
      • Low carbon or mild steels have 0.05% – 0.19% carbon. A large proportion of steel has carbon contents within this range
      • Medium carbon steels have 0.20% – 0.59% carbon, and often some alloying elements. These are harder, stronger steels, modified by heat treatment
      • High carbon steels have 0.60 – 0.99% carbon. These have high strength and good wear resistance – forgings, automotive components
      • Ultra-high carbon steels have 1.0 – 2.0% carbon. Very hard, sharp (knives)Over 2% carbon – material becomes cast iron, not steel
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    3. Commodity Observer

      Commodity Observer

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      2020-01-10T13:38:06+00:00Added an answer on January 10, 2020 at
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      The steel value chain from raw materials to finished steel products can be categorised as follows:

      Raw materials and consumables

      • Iron ore
      • Pellet and sinter
      • Coking coal and coke
      • Metallics: scrap, pig iron, DRI / HBI
      • Ferroalloys: Cr, Mn, Ni, Si etc
      • Refractories

       Semi-finished steel

      • Slab
      • Billet
      • Bloom

      Long products

      • Rebar
      • Merchant bars
      • Structural sections
      • Wire rod and wire products
      • Engineering bars
      • Rails
      • Grinding balls
      • Reversing mill/Steckel mill plate

      Strip mill products

      • HR sheet
      • HR plate
      • CR sheet
      • Electrical steels
      • Galvanised sheet (HDG, EG, galfan, galvalum)
      • Organic coated sheet
      • Tin mill products
      • Tailor welded blanks

      Pipe and tube

      • OCTG and line pipe
      • Seamless tubes
      • Welded tubes
      • Hollow sections

      Stainless steel

      • Longs products (rebar, bars etc)
      • Flats products (sheet and plate)
      • Tube and pipes

      Speciality steels and special metals

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