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AISI 321H Stainless Steel Chemical Properties, Grade, Charts and Document

AISI 321H is an austenitic stainless steel known by its memorable superb resistance to high temperatures and its great corrosion resistance. The core chemical element of a steel alloy is iron, which is the atmosphere of chromium, nickel, and titanium. Titanium offers an enhanced protection from carbides because of the stability it provides against carbide precisipation when welding and exposure to high temperatures. AISI 321H is typically employed for anti-intergranular corrosion resistant purposes and can be applied to for example creating consumer goods for chemical processing, petrochemical as well as power plants. It follows the norms for grades that are similar across the industry, making it guaranteed to be trustworthy and stable in operation. A tabular chart with an accompanying PDF resources containing a rather detailed description of all its properties and specifications is an invaluable tool for a group of engineers or manufacturers as well as for the researchers wanting to apply the material to its full capacity.

AISI 321H Austenitic Stainless Steel Chemical Composition And Grade Table

AISI 321H, which is an austenitic stainless steel, holds out very well at increased temperature against corrosion and oxidation. Its chemical composition basically comprise of iron (67-70%), chromium (17-19%), nickel (9-12%), and a trace amount of titanium (0.6%) to improve weldability by eliminating chromium carbide precipitation. The temperature strength at this particular grade is higher and superior than that of the regular 321 stainless steel, giving the material room for applications in different industry areas, such as the aerospace, chemical-processing, and thermal-processing equipment. For instance, its structure makes the alloy have good mechanical properties and resistance to intergranular corrosion which makes it the most preferred material for the demanding environments.

AISI 321H Austenitic Stainless Steel
Elements C Mn Si P S Cr Ni N Other
Min (%) 0.04 - - - - 17.0 9.0 - Ti=4(C+N)
Max (%) 0.10 2.00 0.75 0.045 0.030 19.0 12.0 - 0.70

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