Search This Blog

Thursday 16 June 2011

Different types of steels

Steel Classification

Attention: open in a new window.Steel can be subdivided into different categories which represent different chemical composition standards.
Carbon Steel
Carbon steel is a simple kind of steel which can be hardened. Carbon steel contains between 0.5 and 1.7 percent carbon.
Alloyed Steel
Alloyed steel has a specific composition and contains a particular percentage of Vanadium, Molybdenum and other elements. Many products are made of alloyed steel, i.e. gearings and axles of automobiles. Alloys which contain cobalt or tungsten are used to produce permanent magnets.
Stainless Steel
Stainless Steel contains chromium, nickel and other alloys which prevent
corrosion of the steel even under harsh conditions like high humidity or exposure to corroding acids.
Chromium increases the hardness of steel whereas nickel increases the toughness. An alloy with 25% nickel can be pulled to twice the length without breaking. V2A-Steel contains for example 71% iron, 20% chromium, eight percent nickel and 0.2% carbon, silicon and manganese respectively.
Stainless Steel can be used for pipes and tanks of oil refineries or in chemically engineered processes. Surgical instruments and other medical equipment are made of stainless steel, too.

Tool Steel
A variety of tools and the cutting or forming parts of machines can be made of tool steel.
Tool steel contains tungsten, molybdenum and other alloys which increase toughness and hardness as well as wear-resistance.

No comments:

Post a Comment