Engineering Materials
Wrought iron

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

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Engineering Materials
Aluminium bronze contains

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

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Engineering Materials
Chromium in steel

Improves cutting ability and reduces hardenability
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

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