List of alloys and their composition and uses pdf

Alloys are widely used materials in our daily life. They have specific properties so they are very useful.

In this article, we will discuss important alloys and their composition and uses.

What are alloys?

An alloy is a solid mixture of two or more different metals in a fixed ratio.

Alloys are homogeneous in a molten state.

 

List of alloys and their composition and uses

The following are the important alloys with their chemical composition and uses.

 

Alloy	Chemical composition	Uses of alloys
Bronze	Cu(90%)+ Sn(10%)	Coin, bell, and utensils
Brass	Cu (70%)+ Zn(30%)	Utensils
Rolled gold	Cu (90%) +Al(10%)	Cheap ornaments
German silver	Cu (60%)+Zn (20%)+Ni(20%)	Utensils, idols
Gunmetal	Cu(88%)+Sn(10%)+Zn(1%)+ Pb(1%)	Gun, gears, and bearings
Delta metal	Cu(60%)+ Zn(38%) +Fe(2%)	Bearings, blades of aeroplanes, propellers of ships
Dutch metal	Cu (80%)+Zn(20%)	Parts of machinery, cheap ornaments
Monel metal	Cu (70%)+Ni(30%)	Idols, base resistant containers
Munz metal	Cu(60%) + Zn(40%)	Coins,
Solder	Pb (50%)+Sn(50%)	For soldering in electronic circuits
Duralumin	Al(94%)+Cu(3%)+Mg(2%)+Mn(1%)	Pressure cooker, utensils
Bell metal	Cu (80%)+ Sn(20%)	In casting bells, statues
Stainless steel	Fe (75%)+Cr(15%) + Ni(10%)+C(5%)	Utensils, surgical cutlery
Nickle steel	Fe (95%)+ Ni(5%)	Electrical wires, automobiles
Coin metal	Cu(95%) Sn(4%) +P(1%)	Coins
Constantan	Cu (60%)+Ni(40%)	wires
Rose metal	Bi (50%)+ Pb( 28%)+Sn(22%)	Automatic fuse
Nichrome	Ni (58-62%)+ Fe( 22-25%)+Cr(8-13%)+ C(0.2-1%)+ Mn,Zn,SiO2(1-2%)	Electrical wires
Aluminium bronze	Al(10%)+ Cu(90%)	Utensils, coin
Manganese steel	Mn(15-20%)+ Fe (80-85%)	Rock crushers, elevator, shovel buckets
Chromium steel	Cr(2.5%)+ C(1.5%)+ Fe(90-95%)	Machines, bullets
Tungsten steel	Cr(10%)+ C(0.25%)+ Mn(0.35%) +Fe(85-95%)	Surgical instruments, utensils
Chrome vanadium steel	V(0.15%)+ Cr (2-10%)+Fe( 90-95%)	Shaft, excel

 

Quiz on Alloys and their composition and uses

Important Questions on Alloys

1. Why do transition metals form alloys?

Ans- Transition metals form alloys because they have smaller atomic sizes and electrons can move freely in the lattice, so they form a solid solution called an alloy.

2. Why are coils of electric toaster made of alloys?

Ans-Alloys have higher resistance than metal and are good conductors of electricity. so the coils of electric toaster are made of alloys.

3. What are ferroalloys?

Ans-Ferro alloys are alloys that are mainly composed of iron and other elements like chromium, manganese, nickel, etc

4. Why are alloys commonly used in electrical heating devices?

Ans-Electrical heating devices produce high heat energy. Alloys have high resistance so that they do not melt, that’s why alloys are used in making electrical heating devices

5. Why are alloys used for making standard resistance coils?

 Ans-Alloys are used for making standard resistance coils because they have high electrical resistivity.

 

6. What are the metals that make the alloys brass and bronze?

Ans-Brass is made of copper and zinc and bronze is made of copper and tin

7. Why do d-block elements form alloys?

Ans- d-block elements form alloys because they easily share electrons and mix with other elements.

8. How do alloys brass and bronze differ in composition?

Ans-Brass and bronze have specific properties. They both have copper in maximum ratio.

But brass is made of copper and zinc and bronze is made of copper and tin,

9. Why do alloys have high resistivity?

Ans-Alloys have multiple types of atoms and ions in the lattice that cause high resistivity.

List of Alloys PDF