Engineering Materials
Machining properties of steel are improved by adding

Vanadium, aluminium
Silicon, aluminium, titanium
Sulphur, lead, phosphorous
Chromium, nickel

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Engineering Materials
Nickel in steel

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
Improves wear resistance, cutting ability and toughness

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Engineering Materials
Aluminium bronze contains

10% aluminium and 90% copper
90% magnesium and 9% aluminium with some copper
92.5% aluminium, 4% copper, 2% nickel, and 1.5% Mg
94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe

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