AISI 442 Ferritic Stainless Steel Chemical Composition, Grades, Table and Online Pdf

AISI 442 is a ferritic stainless steel that is recognized for its excellent resistance to corrosion. As a result, it is often used in situations where high temperatures and corrosive substances are present. It is the chemical composition containing 18-20% chromium, 1% manganese, and silicon of 0.5% that goes with phosphorus of 0.04%, sulfur of 0.03%, and iron remaining at the balance. The composition gives it strong resistance to corrosion at high temperatures, oxidation, and scaling as well as good formability and weldability. AISI 410 has a wide range of application from automotive load bearing exhaust systems, heat exchangers and in the industrial equipment. The main features are that austenitic stainless steels have good high-temperature capabilities, a high resistance to chloride stress corrosion cracking and is generally easier to fabricate. Engineers and manufacturers regularly use these charts, tables and online PDFs as reference and they specify on the grades, chemical composition, and mechanical properties of this material to ensure its accurate selection and application.

AISI 442 Ferritic Stainless Steel Chemical Composition And Grade Table

AISI 442 is a ferritic stainless steel that is characterized by its outstanding corrosion resistance and high strength at elevated temperatures. Its chemical constitution usually contains 18-20% chromium, 0.15-1.00% manganese, 1.00% silicon, 0.04% phosphorus, 0.03% sulfur, 0.50% molybdenum and a trace amounts of other elements. This arrangement confers greater corrosion resistance to the oxidation and chloride-induced stress corrosion cracking. In addition to that, it is highly resistant to sulfidation as well. AISI 442 stainless steel is typical to be used in heat and corrosion resistance, hard waves of vehicles, catalytic converters, and industrial equipment. It’s a part of the AISI 400 stainless steels family, which is meant to function in diverse environments being both reliable and durable.

AISI 442 Ferritic Stainless Steel
Elements C Si Mn P C S
Min (%) 18 - - - - -
Max (%) 23 1 1 0.04 0.20 0.03

Advantages and Disadvantages of AISI 442 Ferritic Stainless Steel

    Advantages:

  • Corrosion Resistance: There is good resistance to corrosion in many acidic and alkaline conditions.

  • Heat Resistance: It has high mechanical strength and good oxidation resistance at high temperature.

  • Cost-Effective: In most cases, they are more cost effective than the austenitic grades of stainless steels.

  • Magnetic Properties: It has magnetic characteristics and is useful in certain purposes only.

    Disadvantages:

  • Limited Weldability: Special welding processes must be employed to prevent the material from becoming brittle and cracking.

  • Lower Chromium Content: Lower levels of chromium might lead to decreased corrosion protection in harsh conditions.

  • Limited Cold Forming: Less ductile and relatively less easily cold worked compared to the austenitic stainless steels.

  • Sensitization Susceptibility: They are prone to sensitization and that leads to intergranular corrosion in some given circumstances.

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