Special
Carbon Steel

The Special Carbon Steel

Aperam produces medium carbon steels, high carbon steels and alloy steels in the form of hot-rolled coil (“as rolled”), with minimum widths between 980 and 1500 mm and thickness ranging from 2,00 to 12,70 mm.

To meet stringent specifications, Aperam has developed steel grades with stricter chemical composition ranges, or different from those set up by Brazilian standards (ABNT/ NBR) or foreign standards (ASTM, DIN, SAE, etc.). These are steel grades having special characteristics that were developed to meet specific demands from certain customers or grades that meet overall market requirements.

Commercial Quality Steels

Carbon steel grades with guaranteed compliance relative to chemical composition, however without addition of micro-binding agents, or with guaranteed mechanical properties. Widely applied to civil and mechanical construction, rerolling, manufacturing of car parts, furniture industry, pipes, agricultural implements, home appliances, parts requiring light metal forming or bending.

 

Medium carbon steel

Steel grades for which only carbon, silicon, manganese, phosphorus and sulphur contents are specified, with the contents of following element being observed:

  • Silicon (Si): 0.60% maximum;
  • Manganese (Mn): 1.65% maximum;
  • Carbon (C): equal to or higher than 0.30% and equal to or lower than 0.50%.

Steel grades classified as medium carbon steels belong to SAE series, from 1031 to 1050.

High carbon steel

Steel grades for which only carbon, silicon, manganese, phosphorus and sulphur contents are specified, with the contents of following element being observed:

  • Silicon (Si): 0.60% maximum;
  • Manganese (Mn): 1.65% maximum;
  • Carbon (C): carbon content above 0,50%.

Steel grades classified as high carbon steels belong to SAE series, from 1055 to 1095.

Alloy steel

In addition to carbon, silicon, manganese, phosphorus and sulphur, other elements are specified such as chromium, nickel, molybdenum, vanadium, boron, etc.

This steel grade is widely used for the manufacturing of saws, cutlery sets, tools, car parts and agricultural implements. The same applies to re-rolling sector, with focus on automotive industry.

 

 

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