# Civil Engineering - Building Materials - Discussion

### Discussion :: Building Materials - Section 1 (Q.No.18)

18.

Stainless steel contains

 [A]. 18% of chromuim and 8% nickel [B]. 8% of chromium and 18% of nickel [C]. 12% of chromium and 36% of nickel [D]. 36% of chromium and 12% of nickel.

Explanation:

No answer description available for this question.

 Abhi said: (Oct 14, 2013) Minimum chromium content has to be 10.5 %

 Atul Gavali said: (Dec 17, 2013) Stainless steel is used where both the properties of steel and resistance to corrosion are required.

 Piyush Singh said: (Mar 12, 2015) Q. What does chrome-nickel content mean? Chrome-Nickel content refers to the percentage of chrome and nickel in the stainless steel. Chrome gives the stainless steel its luster & durability, while the nickel is for the hardness & strength. 18/10 Stainless Steel means it contains 18% Chromium or Chrome and 10% Nickel. A sink with an 18/10 chrome-nickel content is considered to be an excellent grade, due to its corrosive resistance and greater durability. Q. What is the difference between 18/8 and 18/10 stainless steel? The first number is the amount of chromium that is contained in the stainless, i.e., 18 is 18% chromium. The second number is the amount of nickel, i.e., 8 stands for 8% nickel. So 18/8 means that this stainless steel contains 18% chromium and 8% nickel. 18/10 is 18% chromium and 10% nickel. The higher the numbers the more corrosion resistant the material. Both 18/8 and 18/10 contain nickel and are part of the grade family "300 series" stainless. 18/0 means that there is 18% chromium but zero nickel. When there is no nickel the stainless grade family is the "400 series". 400 series are not as corrosion resistant as the 300 series and are magnetic, where the 300 series are non-magnetic and is the grade mainly used for sinks, Food processing equipment, Restaurant food preparation areas etc.

 Sainath said: (Sep 4, 2016) Thanks @Piyush.

 Varinder said: (Feb 1, 2018) Stainless steel 304 contains 18% chromium and 8% nickel while 316 contains 16% chromium, 10% nickel and 2% molybdenum. The molybdenum is added to help resist corrosion to chlorides.

 Rahul Kashyap said: (Mar 13, 2018) Stainless Steel contains 18% chromium &12% nickel & 2% molybdenum.

 Waqar Ahmed said: (Jan 11, 2021) Chromium is used in stainless steel to make it more corrosion resistant and durable. Nickel to make it strong and versatile. 18% Chromium. 8%nickel.