Steel

• Iron 99%
• Carbon 1%

• Hard and strong

• Construction materials for buildings and bridge
• To make frame of vehicles and railway tracks

Pewter

• Tin 96%
• Copper 3%
• Antimony 1%

• Lustre
• Resistant to corrosion

• To make decorative items such as photo frame

Bronze

• Copper 88%
• Tin 12%

• Hard
• Resistant to corrosion
• Attractive colour

• To make monuments, metak sculptures, coins, medals and others

Brass

• Copper 75%
• ZInc 25%

• Strong
• Has shony surface
• Malleable
• Gold in colour

• To make keys, door knobs, musical instruments such as trumpet

Duralumin

• Alluminium 95%
• Copper 3%
• Magnesium 1%
• Manganese 1%

• Light
• Strong
• Resistant to corrosion

• To make frame of aircrafts, aeroplanes and others

• Metals are ductile because when force is applied, layers of atoms in pure metal slide
• Metals are malleable because there are empty space between the atoms

• The presence of atoms of other metals that are of different sizes disturb the orderly arrangement of atoms in the metal
• This reduces the layer of atoms from sliding
• Thus, an alloy is stronger and harder than its pure metal

• To make the body of aeroplane light and strong

• To make some musical instrument shiny and resistant to corrosion

• To construct railway track to make sure the train moves by floating
• To prevent friction between thr track and the body of train