Engineering Materials
Delta iron occurs at temperature of

Room temperature
Between 1400°C and 1539°C
Above melting point
Between 910°C and 1400°C

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Engineering Materials
Nickel in steel

Improves wear resistance, cutting ability and toughness
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 cutting ability and reduces hardenability

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