Fe(Atomic number : 26)

1. Introduce – Softer than aluminum but stronger when mixed with small amounts of carbon – Accounts for more than 90% of the world’s metal production – Fe alloying element effect: increased strength * Types of Fe 1) Pure Iron – Pure iron – Less than 0.035% carbon content 2) Wrought Iron – Iron with less carbon added than steel – Carbon content greater than 0.05%, but less than 0.25 3) Hardened steel – Iron with some carbon added to pure iron to increase hardness (1) Carbon steel: an alloy of iron and carbon, containing a small amount of sil...