16)Chromium improves
ol
steel.
O Corrosion resistance 812 yadlus
O Brittleness ovelle
Ductility
None of the above.
Answers
Answer:
Explanation:
The minimum chromium content of austenitic stainless steels is 16%. Other elements added to stabilize the austenitic microstructure at room temperature include carbon, nitrogen, nickel, and manganese. Austenitic stainless steel may also contain minor amounts of ferrite microstructure, because those elements that stabilize the austenitic microstructure also stabilize the ferritic microstructure. Austenitic stainless steels cannot be hardened by heat treatment, but their properties can be altered by cold-work. Austenitic stainless steels are classified into four categories on the basis of their mechanical properties (Table 3.10).35 The austenitic stainless steels have higher corrosion resistance than ferritic and martensitic stainless steels. Commonly used austenitic stainless steels used in the oil and gas industry are American Iron and Steel Institute (AISI) 302, 304, and 316.