The hardness of steel primarily depends on

Engineering Materials
The hardness of steel primarily depends on

Heat treatment employed

Percentage of alloying elements

Percentage of carbon

Shape of carbides and their distribution in iron

Heat treatment employed

Percentage of alloying elements

Percentage of carbon

Shape of carbides and their distribution in iron

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Engineering Materials
Pearlite consists of

13% ferrite and 87% cementite

13% cementite and 87% ferrite

13% carbon and 87% ferrite

6.67% carbon and 93.33% iron

13% ferrite and 87% cementite

13% cementite and 87% ferrite

13% carbon and 87% ferrite

6.67% carbon and 93.33% iron

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Engineering Materials
Iron is

Ferromagnetic

Paramagnetic

Ferroelectric

Dielectric

Ferromagnetic

Paramagnetic

Ferroelectric

Dielectric

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Engineering Materials
Brass contains

70 - 75% copper and rest tin

90% copper and 10% tin

85 - 92% copper and rest tin with little lead and nickel

70% copper and 30% zinc

70 - 75% copper and rest tin

90% copper and 10% tin

85 - 92% copper and rest tin with little lead and nickel

70% copper and 30% zinc

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Engineering Materials
White cast iron

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

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. It is soft, tough and easily machined metal

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

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

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. It is soft, tough and easily machined metal

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

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Engineering Materials
Ferromagnetic alpha iron exists in temperature range of

Below 723°C

910 to 1440°C

1400 to 1539°C

770 to 910°C

Below 723°C

910 to 1440°C

1400 to 1539°C

770 to 910°C

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Engineering Materials

Engineering Materials The hardness of steel primarily depends on

Engineering Materials Pearlite consists of

Engineering Materials Iron is

Engineering Materials Brass contains

Engineering Materials White cast iron

Engineering Materials Ferromagnetic alpha iron exists in temperature range of

Engineering Materials
The hardness of steel primarily depends on

Engineering Materials
Pearlite consists of

Engineering Materials
Iron is

Engineering Materials
Brass contains

Engineering Materials
White cast iron

Engineering Materials
Ferromagnetic alpha iron exists in temperature range of