321 stainless steel plate

321 stainless steel (UNS S32100) is a titanium stabilized austenitic stainless steel that features improved resistance to intergranular corrosion. This grade is suitable for high-temperature applications up to 1500°F (815°C), where the addition of titanium stabilizes the material against chromium carbide formation. Since titanium has a stronger affinity for carbon than chromium, titanium carbide precipitates within the grain instead of forming at the grain boundaries. While corrosion resistance is similar to 304 and 304L in the annealed condition, it features higher creep and stress rupture properties. These properties make it ideal for pressure vessels and boiler applications. 321 stainless steel is non-magnetic and heat resistant for continuous service at elevated temperatures.

Alloy 321 stainless steel plate is also advantageous for high temperature service because of its good mechanical properties. Alloy 321 stainless steel plate offers higher creep and stress rupture properties than Alloy 304 and, particularly, Alloy 304L, which might also be considered for exposures where sensitization and intergranular corrosion are concerns.

Alloy 321 stainless steel plate cannot be hardened by heat treatment, only by cold working. It can be easily welded and processed by standard shop fabrication practices.

Standards:

ASTM 321/321H Sheets

UNS S32100/S32109 Sheets

EN number 1.4541* Sheets

EN name * 6CrNiTi18-10*

W.Nr. 1.4541/1.4878 Sheets

DIN *6 CrNiTi 18 10/ 12CrNiTi18 9 Sheets

SS 2337 Sheets

SS  321 Chemical Composition

Stainless Steel 321 Mechanical Properties