Engineering Materials
Carbon steel is

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

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Engineering Materials
Nickel in steel

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

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Engineering Materials
Cyaniding is the process of

Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness
Obtaining cyanide salts
Reacting steel surface with cyanide salts
Dipping steel in cyanide bath

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