Question

Many pure metals like copper, iron and gold are very soft and as such are considered unsuitable for certain uses. Metallic objects around us such as cooking utensils, statues, ornaments, guns etc. are actually not made up of pure metals. Instead of pure metals, alloys are used in the design of most of the useful objects. Making alloys enhances the basic properties of a metal which is the primary constituent (metal) of an alloy.
What is stainless steel? How is it prepared? Write one important property which makes it more useful in making cooking utensils as compared to its primary metal.

Hint:

Stainless steel, made of iron and chromium, is highly resistant to corrosion. This makes it ideal for use in cooking utensils, where durability and resistance to rust are important.

Answer 1

Stainless Steel is an alloy made primarily of iron (Fe), chromium (Cr), and small amounts of other elements like nickel (Ni) and molybdenum (Mo). The chromium content gives stainless steel its resistance to corrosion, making it highly durable and suitable for various applications, including cooking utensils. Preparation of Stainless Steel: Stainless steel is prepared by melting iron and adding chromium to it. Depending on the type of stainless steel, nickel and other elements may also be added. The alloy is then processed into sheets, rods, or other forms. Important Property of Stainless Steel: One of the most important properties of stainless steel that makes it suitable for cooking utensils is its corrosion resistance. The chromium in stainless steel forms a thin, protective oxide layer on the surface that prevents rusting and corrosion, even when exposed to water and air.