Engineering Materials
Monel metal contains

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

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Engineering Materials
The brown smoke during the operation of a Bessemer converter indicates that the

Silicon and manganese has burnt and carbon has started oxidizing
The converter must be titled to remove the contents of the converter
Air is burning out silicon and manganese
The brown smoke does not occur during the operation of a Bessemer converter

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Engineering Materials
Steel contains

50% or more iron
Alloying elements like chromium, tungsten nickel and copper
Elements like phosphorus, sulphur and silicon in varying quantities
80% or more iron

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