- ferrous metal is metallic material that contains at least 50% iron
the simplest ferrous metal is
- plain carbon steel- consisting of less than one percent carbon.
parts that are made from ferrous metal is
- aircraft engines
- engine mounting
- hydraulic lines
- control cables and etc
metals ---> ferrous metal ---> iron as the base metal ---> iron is the most common metals used---> iron Ore is mined producing IRON (Pig Iron)
GENERAL CHARACTERISTIC OF METAL
* the properties of a metal, which influence its suitability as a material for engineering use.
1. brittleness
- the property of a metal to break when bent, defamed, or hammered.
- it is the resistance to change in the relative position of the molecules within the material.
- cast iron, cast aluminium and very hard steel are examples of brittle metals.
2. conductivity
- the characteristic of a material , which makes it possible for it to transmit heat or electrical energy by conduction
3. ductility
- the property , which allows metal to be drawn into thinner sections without breaking.
- ductility allows materials like aluminium and copper to be drawn into very small wires.
4. elasticity
- the capability of an object a material to be stretched and recover its size and shape after its deformation.
5. malleability
- the characteristic of a material that allows it to be stretched and shaped by beating with a hammer or passing through rollers without breaking.
6. plasticity
- the property of assuming a new shape when subjected to pressure
- the new shape being retained after the pressure has been discontinued.
7. tenacity
- this is the resistance a material offers against being pulled apart.
- material which have good tenacity have a high tensile strength.
- tensile strength of steel is high where as that of lead is low.
to be continued........
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