Give the compositions of stainless steel and duralumin and include their properties and uses
Answers
Stainless steel is a combination of iron, chromium and nickel
properties-
Higher corrosion resistance.Higher cryogenic toughness.Higher work hardening rate.Higher hot strength.Higher ductility.Higher strength and hardness.A more attractive appearance.Lower maintenance.
Uses-
Architecture and construction
Automotive and transportation
Energy and heavy industries
Food and catering
DURALUMIN
It is an alloy made up of 90% aluminum,4% copper, 1% magnesium and 0.5% to 1% manganese.
PROP.
Before a final heat treatment the alloy is ductile and malleable; after heat treatment a reaction between the aluminum and magnesium produces increased hardness and tensile strength. Because of its lightness and other desirable physical properties, duralumin is widely used in the aircraft industry.
USES
widely used in aircraft construction.