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Engineering Materials

Engineering Materials
Aluminium bronze contains aluminium and copper in the ratio of

2.5277777777778
2.1180555555556
0.47916666666667
40 : 60

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Engineering Materials
Admiralty gun metal contains

88% copper, 10% tin and rest zinc
Iron scrap and zinc
63 to 67% nickel and 30% copper
Alloy of tin, lead and cadmium

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Engineering Materials
The hardness of steel primarily depends on

Heat treatment employed
Percentage of carbon
Shape of carbides and their distribution in iron
Percentage of alloying elements

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Engineering Materials
Beryllium bronze contains

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

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Engineering Materials
Maximum percentage of carbon in ferrite is

0.00025
0.0006
0.001
0.0025

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Engineering Materials
Manganese is added in low carbon steel to

Raise the yield point
Make the steel ductile and of good bending qualities
All of these
Make the steel tougher and harder

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