1. Engineering Materials
Material used by Engineers for their Products
Types
Metals
Timber
Reinforced Concrete
Bituminous mixtures
Clay products
Masonry materials
Plastics

2. Metals

3. Timber

4. Reinforced Concrete

5. Bituminous mixtures

6. Clay products

7. Masonry materials

8. Plastics

9. Principle Requirements
Strength
Adequately strong to carry the intended load
Rigidity
Adequately rigid not to deform under service loads
Durability
To perform function during service life

10. Properties of Engineering Materials
Physical Properties:
Shape
Brightness
Density
Absorption
Melting point
Opacity
Viscosity
Conductivity
Size or dimensions
Colour
Homogeneity

11. Properties of Engineering Materials
Homogeneity
Isotropic
Anisotropic

12. Properties of Engineering Materials
Chemical Properties
Corrosion resistance
Hygroscopy: PH
Reactivity
Surface tension

13. Properties of Engineering Materials
Electrical Properties
Conductivity
Dielectric strength

14. Properties of Engineering Materials
Optical properties
Reflectivity
Refractivity
Scattering
Photosensitivity
Luminosity

15. Properties of Engineering Materials
Manufacturing Properties
Castability
Extruding
Hardness
Machinability

16. Properties of Engineering Materials
Mechanical Properties
Strength
Stiffness
Elasticity
Ductility
Hardness