WHAT IS STEEL ?
Steel is an alloy of Iron and Carbon which can contain maximum 2.1 % of carbon in total.
CLASSIFICATION OF STEEL
- Hypoeutectoid Steel is the steel which contain maximum 0.8 % of Carbon as an alloying element of Iron.
- Hypereutectoid Steel are the steel which contain 0.8 to 2.1 % of Carbon as an alloying element of Iron.
CLSSIFICATION OF THE STEEL [Basis Carbon Content]
- Low carbon steel
- Medium carbon steel
- steel High carbon
- Ultrahigh carbon steel
- Interstitial free steel
LOW CARBON STEEL: The steel which contains maximum of 0.30 % of Carbon. The largest quantity of this steel is produced in the form of flat products [Cold Rolled Sheet / Strip]. Lower Carbon in these material ensure formability with better fabrication .
MEDIUM CARBON STEEL: The steel which contains 0.30-0.60 % of Carbon and Manganese from 0.6-1.65%.. The higher Carbon and Manganese content in these material allows this steel to be used in the Quenched and Tempered condition. Application Shaft, Crankshaft.
HIGH CARBON STEEL: The steel which contains maximum of 0.60-1.00 % of Carbon and Manganese from 0.30-0.90 %. These material are used for Spring Material and High Strength Wire.
ULTRA HIGH CARBON STEEL: These steel are experimental alloys containing 1.25-2.00 % of Carbon . These Steel are thermo mechanically processed to produce microstructure of Equiaxed Ultrafine Grains.
INTERSTITIAL FREE STEEL : These steel are alloys which are almost free from interstitials i.e Carbon and Nitrogen. It contains little or less free carbon as most of the carbon remain present in carbide form. The carbide forming element like Ti / Mo / Nb .
WHAT IS CAST IRON
Cast Iron is an alloy of Iron and Carbon which can contain Carbon from 2.1-6.67 % in total.