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Types of Properties of Engineering Materials

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This site uses Akismet to reduce spam. Learn how your comment data is processed. Skip to content. Email Address Subscribe. Density This is the mass per unit volume, of a material. Clearly the density of a material is important to a designer wherever the weight of a product is a major consideration e.

Year 1 - Materials and their Properties

Density is important in relation to product weight and size. Electrical resistivity This is a measure of a material s ability to conduct electricity.

Physical properties of materials

A material with a low resistivity will conduct electricity well. Thermal expansion This is a measure of the degree of increase in dimensions when an object is heated. This can be measured by an increase in length, or area or volume. When subjected to tensile loads snap off without giving any sensible elongation.

13 Mechanical Properties Of Material Must To Know

Cast iron is a brittle material. It is a special case of ductility which permits materials to be rolled or hammered into thin sheets, making wire. A malleable material should be plastic but it is not essential to be so strong. The malleable materials commonly used in engineering practice are lead, soft steel, wrought iron, copper, and aluminum.

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Toughness is the property of a material to resist fracture due to high impact. It is measured by the amount of energy that a unit volume of the material has absorbed after being stressed up to the point of fracture. This property is desirable in parts subjected to shock and impact loads. Normally the toughness of the material decreases when it is subjected heat.

It is the property of a material which refers to a relative ease with which a material can be cut. The machinability of a material can be measured in a number of ways such as comparing the tool life for cutting different materials or thrust required to remove the material at some given rate or the energy required to remove a unit volume of the material.

List of materials properties

For example, that brass can be easily machined than steel. That means the machinability property of brass is high when compare to steel. It is the property of a material to absorb energy and to resist shock and impact loads. It is measured by the amount of energy absorbed per unit volume within elastic limit.

Examples of properties

This property is essential for designing the spring materials. When a material is subjected to a constant stress at high temperature for a long period of time, it will undergo a slow and permanent deformation called creep. This property is considered in designing internal combustion engines, boilers, and turbines.