Among pig iron and wrought iron, which is used for making tools? Why?
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Solution
Wrought Iron is used for rivets, chains, ornamental iron work, railway couplings, water and steam pipes, bolts and nuts, horse shoe bars, hand rails, straps for timber roof trusses, boiler tubes, roofing sheets, etc.
Wrought Iron is used in making tools because it is easily forged and welded, can be used to form temporary magnets, it is ductile, malleable and tough, etc.