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AISI 444 Ferritic Stainless Steel Chemical Composition Properties, Grade, Tables and Document

AISI 444 is an excellent low-carbon highly chromium containing ferritic stainless steel known for its outstanding corrosion resistance, besides its good thermal conductivity. Constituted mainly of iron, chromium, and molybdenum, with nickel and nitrogen being infiltrated into the legerity, AISI 444 is clothed with corrosion in saline environment. This one grade is used in making a variety of products, such as in the automotive exhaust systems, heat-exchanging as well as architectural structures. Its chemical composition usually comprises up to 19% of chromium, up to 1% of molybdenum, up to 1% of nickel and not more than 0.025% of carbon. AISI 444 displays good weldability and formability characteristics, which make it a practical option for availing the services of metal surface processing for tough situations. Those tables, charts and documents containing its mechanical properties, grades particularizations, and performance characteristics quickly become useful for reference to as well as for application-particular needs.

AISI 444 Ferritic Stainless Steel Chemical Composition And Grade Table

AISI 444 is a low-carbon, dual-stabilized, ferritic stainless steel. The chemical composition is like chromium, molybdenum, as well as nitrogen, and it is thus well-known for its ability to withstand corrosion in different environments, particularly chloride-containing ones. The specifications of the grade table, include tensile strength, yield strength, elongation, and hardness. AISI 444 is, from the other features, characterized by its exceptional high-temperature resistance and formability, making it suitable for its use in automotive exhaust systems, heat exchangers, or architectural applications. It has a structure and a table of qualities which can be used by engineers and manufacturers as a point of reference in choosing materials for particular manufacturing needs.

AISI 444 Ferritic Stainless Steel
Elements Fe Cr Mo Ni Mn Si C
Min (%) - - - - - - -
Max (%) 77.475 18.5 2 1 1 1 0.025

Advantages and Disadvantages of AISI 444 Ferritic Stainless Steel

    Benefits:

  • Corrosion Resistance: Resists corrosion in mildly corrosive environments up to a certain extent.

  • High Temperature Resistance: Has good structural stability at high temperatures; can be used in high-temperature applications.

  • Excellent Weldability: Can be welded without need for post-weld heat treatment, saving time and costs associated with heat treatment.

  • Cost-Effective: Lower in cost than most austenitic stainless steels, making them a good choice for cost-sensitive applications.

    Drawbacks:

  • Limited Corrosion Resistance: Cannot be used in highly corrosive environments such as marine or highly acidic environments.

  • Lower Strength: Exhibits comparatively lower mechanical properties than Austenitic Stainless Steels.

  • Sensitivity to Chloride Stress Corrosion Cracking: Vulnerable to stress corrosion cracking in conditions containing chloride ions.

  • Limited Availability: Not readily available in some forms and sizes which may pose challenges in procurement.

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Stainless Steel
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