All `FeC` alloys containing less than `2%` carbon are called

Options

A. steel
B. wrought iron
C. spongy iron
D. Pig iron

Answer

a

Explanation

Steel is ductile and can be rolled or machined in slaape .The bardness and strrength of steel increases with increasing C contact .Steel may be broadly classified is mild steel `(0.1- 0.5%C` otherwise called soft steel or low carbonm steel ) and hard steel `(0.6 - 1.5 %C` ofterwise called high carbon steel ).
Nowadays bulk of pig iron is converted into steel .The mild steel is cheaper than wronght iron it is stronger and more workable than cast iron , it also has the advantage oven both in that it can be bardened by beating to reducess and then cooled repidly (punching) in water and tempored by reheating to `473K to 573 K` and cooling more slowly .The hardress resilence and ductilly can be cooling as well as the precise conposition of the steel.