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  1. Ferritic stainless steels are heat-treatable
  2. It has good corrosion resistance due to high content of chromium
  3. It can be processed by powder metallurgy
  4. It is used for the manufacture of cooking vessels, food-processing equipment, and automotive components such as camshafts
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1 Answers

Option 1 : Ferritic stainless steels are heat-treatable

  • Stainless steels are characterized primarily by their corrosion resistance, high strength and ductility, and high chromium content. In stainless steel, the minimum chromium content should be 10 to 12% by weight.
  • It can be processed by powder metallurgy. Stainless steel powders were mixed with various amounts of tungsten carbide (WC) powders (at 5%, 10% or 15% by weight), Afterwards, the powder mixtures were uniaxially compacted at 300 MPa. Specimens were sintered in hydrogen atmosphere, at 1200 °C, 1250 °C or 1300 °C with a holding time of either 30, 45 or 60 minutes.
  • Due to its corrosion resistance nature, it is used in the manufacturing of cooking vessels, food processing equipment, and automotive components such as camshafts
  • Ferritic steels are not heat treatable because of low carbon concentration and they are commonly used in the annealed state.
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