The silicon steel is widely used for

Engineering Materials
The silicon steel is widely used for

Motor car crankshafts

Generators and transformers in the form of laminated cores

Cutting tools

Connecting rods

Motor car crankshafts

Generators and transformers in the form of laminated cores

Cutting tools

Connecting rods

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Engineering Materials
Delta-iron occurs between the temperature ranges of

400°C to 600°C

600°C to 900°C

1400°C to 1530°C

900°C to 1400°C

400°C to 600°C

600°C to 900°C

1400°C to 1530°C

900°C to 1400°C

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Engineering Materials
Grey cast iron

Is produced by small additions o magnesium (or cerium) in the ladle Graphite is in nodular or spheroidal form and is well dispersed throughout the material

Is also known as chilled cast iron is obtained by cooling rapidly. It is almost unmachinable

Contains 1.7 to 3.5% carbon in Free State and is obtained by the slow cooling of molten cast iron

Is produced by annealing process. I is soft, tough and easily machined metal

Is produced by small additions o magnesium (or cerium) in the ladle Graphite is in nodular or spheroidal form and is well dispersed throughout the material

Is also known as chilled cast iron is obtained by cooling rapidly. It is almost unmachinable

Contains 1.7 to 3.5% carbon in Free State and is obtained by the slow cooling of molten cast iron

Is produced by annealing process. I is soft, tough and easily machined metal

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Engineering Materials
A material is said to be allotropic, if it has

Different crystal structures at different temperatures

Atoms distributed in random pattern

Any one of the above

Fixed structure at all temperatures

Different crystal structures at different temperatures

Atoms distributed in random pattern

Any one of the above

Fixed structure at all temperatures

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Engineering Materials
Large forgings, crank shafts, axles normally contain carbon up to

0.20 to 0.45%

0.55 to 1.0%

0.45 to 0.55%

0.05 to 0.20%

0.20 to 0.45%

0.55 to 1.0%

0.45 to 0.55%

0.05 to 0.20%

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Engineering Materials
Addition of silicon to aluminium results in

Improvement of corrosion resistance

One of the best known age and precipitation hardening systems

Improving machinability

Improvement of casting characteristics

Improvement of corrosion resistance

One of the best known age and precipitation hardening systems

Improving machinability

Improvement of casting characteristics

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Engineering Materials

Engineering Materials The silicon steel is widely used for

Engineering Materials Delta-iron occurs between the temperature ranges of

Engineering Materials Grey cast iron

Engineering Materials A material is said to be allotropic, if it has

Engineering Materials Large forgings, crank shafts, axles normally contain carbon up to

Engineering Materials Addition of silicon to aluminium results in

Engineering Materials
The silicon steel is widely used for

Engineering Materials
Delta-iron occurs between the temperature ranges of

Engineering Materials
Grey cast iron

Engineering Materials
A material is said to be allotropic, if it has

Engineering Materials
Large forgings, crank shafts, axles normally contain carbon up to

Engineering Materials
Addition of silicon to aluminium results in