Common-grade stainless steels normally contain at least:

A. 7 percent nickel
B. 11 percent chromium
C. 11 percent nickel
D. 21 percent chromium



Answer :

Final answer:

Stainless steels commonly contain 11 percent chromium along with other elements like nickel, manganese, and molybdenum, enhancing their durability and corrosion resistance.


Explanation:

Common-grade stainless steels usually contain 11 percent chromium and various amounts of other elements like nickel, manganese, and molybdenum. For example, stainless steel is an alloy primarily composed of iron with a small percentage of chromium, which forms a protective oxide layer, enhancing its corrosion resistance.

Chromium and nickel are often key components in stainless steel alloys to ensure durability and resistance to rusting. Constantan, for instance, is an alloy of 45% nickel and 55% copper, showcasing different compositions for specific properties.

Understanding the composition of stainless steels, including the percentage of chromium and nickel, is crucial in determining their properties and ideal applications in various industries.


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