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Engineering Materials

Engineering Materials
The surface hardness of the following order is achieved by nitriding operation

1000 to 1100 VPN
1500 VPN
600 VPN
250 VPN

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Engineering Materials
Ball bearings are, usually, made from

Medium carbon steel
High carbon steel
Chrome steel
Low carbon steel

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Engineering Materials
Eutectoid steel contains following percentage of carbon

0.003
0.0063
0.008
0.0002

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Engineering Materials
Beryllium bronze contains

97.75% copper and 2.25% beryllium
99% copper and 1% beryllium
80% copper and 20% beryllium
60% copper and 40% beryllium

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Engineering Materials
Isotropic materials are those which have the same

Stresses induced in all directions
Elastic properties in all directions
Electric and magnetic properties in all directions
Thermal properties in all directions

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Engineering Materials
The blade of a power saw is made of

High speed steel
Boron steel
Malleable cast iron
Stainless steel

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