FERROUS METALS
A ferrous material is the one in which iron is a major constituent. First Iron ore is converted into pig iron and then pig iron is subjected to many metallurgical processes to mix different percentage of carbon and to get the following 3 useful ferrous materials:
- Cast iron-carbon content 1.7% to 4.5%
- Wrought iron-carbon content 0.05% to 0.15%
- Steel-carbon content 0.25% to 0.25%.
All ferrous materials has about 0.5 to 3% silica, less than 2% manganese, 0.15% sulphur and 0.6% phosphorous.