Engineering Materials
Wrought iron

Is a ductile material
Cannot stand sudden and excessive shocks
All of these
Can be easily forged or welded

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Engineering Materials
Carbon steel is

An alloy of iron and carbon with varying quantities of phosphorus and sulphur
Refined from cast iron
Extensively used for making cutting tools
Made by adding carbon in steel

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Engineering Materials
Chromium in steel

Improves cutting ability and reduces hardenability
Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties
Gives ductility, toughness, tensile strength and anti-corrosion properties
Improves wear resistance, cutting ability and toughness

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Engineering Materials
Cobalt in steel

Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties
Improves cutting ability and reduce hardenability
Improves wear resistance, cutting ability and toughness
Gives ductility, toughness, tensile strength and anti corrosion property

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