Question

which house items are protected from corrosionand determine efficiancy of various corrosion resistant materials?

Answer 1

Non metals and metals that are protected by a coating of corrosion resistant material are safe from corrosion and do not come in contact with atmospheric oxygen.

Carbon steel, Cast Iron, Bronze, Cobalt and Nickel based alloys, etc are all good corrosion resistant materials. However, there efficiency depends on the nature of conditions - like temperature, humidity, etc. Therefore different corrosion resistant materials can be used depending on the nature of the working conditions.