AISI 404 Ferritic Stainless Steel Chemical Composition, , Chart and Online Pdf

AISI 404 ferritic grade stainless steel is classified as one of the stainless steel alloys that showcases excellent corrosion resistance and toughness. Generally, chromium that comprise its chemical composition is around 12%, behaving by shielding the melted metal from aggression of surrounding air on the surface, saving it from both corrosion and rust. Besides that, it also contains very minute percentages of carbon, silicon, manganese, phosphorus, sulfur, sometimes with molybdenum among other elements. As a result, AISI 404 gets widely incorporated into those applications where strong resistance to oxidation and mild corrosive surroundings are required, such as making exhaust systems in automobiles, any kitchen equipment and many architectural trim. Descriptive figures and materials information in the form of graphs and PDFs can be viewed online, giving necessary information to the engineers, metallurgists and manufacturers.

AISI 404 Ferritic Stainless Steel Chemical Composition And Grade Table

AISI 404 ferritic stainless steel is a 400 series stainless steel and is of the type noted especially for its excellent corrosion resistance and high strength. Its chemical expression usually has a range of about 12-14% chromium percentage and generally has a low carbon content, mostly not more than 0.12%. On the other hand, there are other elements in much smaller quantities, such as manganese, silicon but sometimes sulfur and phosphorus which are added to improve certain properties. AISI 404 stainless steel is characterized by quite successful weldability and formability which makes it possible for the metal to be used in automotive, housing, and construction sectors. It's frequently chosen because of its convenient fit between performance and price.

AISI 404 Ferritic Stainless Steel
Elements Fe Cr Ni Mn Si C P S
Min (%) - 11 1.25 - - - - -
Max (%) Balance 12.5 2 1 0.5 0.05 0.03 0.03

The Advantages and Disadvantages of AISI 404 Ferritic Stainless Steel


  • Corrosion Resistance: Fairly good resistance to atmospheric, water, and mild chemical corrosion.

  • Heat Resistance: Good mechanical properties at high temperature, suitable for high heat applications.

  • Magnetic Properties: Has magnet properties, useful in certain applications.

  • Cost-Effective: Cheaper than austenitic grades of stainless steel.


  • Limited Formability: More brittle than austenitic grades, restricting shaping ability.

  • Lower Toughness: Lower impact strength compared to other stainless steel grades.

  • Sensitivity to Chloride: Prone to chloride stress corrosion cracking.

  • Lower Corrosion Resistance: Less resistant to corrosion, especially in acidic conditions.

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