Which stainless steel series is Ferritic?

Which stainless steel series is Ferritic?

• A. 410 series Stainless Steel
• B. 316 series Stainless Steel
• C. 300 series Stainless Steel
• D. 405 series Stainless Steel

Answer: (D)

Ferritic stainless steels are in the 400-series and have a body-centered cubic structure with chromium as the main alloying element, little or no nickel, and they are magnetic. They are not hardened by heat treatment and typically offer decent corrosion resistance with lower ductility compared to austenitic steels. Among the options, the 405 series is a ferritic stainless steel, so it fits this category. The 410 series is martensitic (hardenable by heat treatment), while the 316 and the 300 series are austenitic (non-magnetic and nickel-rich). So the correct ferritic example here is the 405 series.

Ferritic stainless steels are in the 400-series and have a body-centered cubic structure with chromium as the main alloying element, little or no nickel, and they are magnetic. They are not hardened by heat treatment and typically offer decent corrosion resistance with lower ductility compared to austenitic steels. Among the options, the 405 series is a ferritic stainless steel, so it fits this category. The 410 series is martensitic (hardenable by heat treatment), while the 316 and the 300 series are austenitic (non-magnetic and nickel-rich). So the correct ferritic example here is the 405 series.