POSCO 321 Stainless Steel Plate 3.0 - 80.0mm Laser Cutting SS Plate Titanium Stabilized for High Temperature Resistance

High-quality 321 stainless steel plates available in thickness range of 3.0 - 80.0mm, ideal for laser cutting applications with excellent high-temperature performance and corrosion resistance.

Product Type: 321 Stainless Steel Sheet, 321 Stainless Steel Plate
Specification: ASTM A240 / ASME SA240 JIS G4305 / EN 10088-2 / GB 24511
Thickness: Cold rolled 0.5-3.0 mm / Hot rolled 3.0-80.0 mm
Standard Sizes: Cold rolled 1000×2000mm, 1219×2438mm; Hot rolled 1500×3000mm, 1500×6000mm, 1800×6000mm, 2000×6000mm
Finish: SATIN, 2B, 2D, BA NO (8), Cold rolled sheet (CR), Hot rolled plate (HR), No.1 finish hot rolled, 1D, No.4, BA, 8K, hairline, brush, mirror
Brand: TISCO, BAOSTEEL, POSCO, JISCO, DONGTE
Forms / Shapes: Plate, Sheet, Coils, Foils, Strip, Flats, Clad Plate, Plain Sheet, Rolling Sheet, Rolling Plate, Flat Shim, Flat Sheet, Shim Sheet, Rolls, Blank (Circle), sheared, annealed, soft annealed, descaled, tread plate, Checker Plate
Other Trade Names: SS 321, SUS 321, Inox 321, DIN 1.4541, UNS S32100, AISI 321, SAE 321 Sheet

Grades 321 and 347 are austenitic 18/8 steels (similar to Grade 304) stabilized by Titanium (321) or Niobium (347) additions. These grades resist intergranular corrosion after heating within the carbide precipitation range of 425-850°C. Grade 321 is ideal for applications up to 900°C, offering high strength, scaling resistance, phase stability, and subsequent aqueous corrosion resistance.

Grade 321H features higher carbon content for improved high-temperature strength. Note that titanium does not transfer well across high-temperature arcs, making grade 347 the preferred welding consumable for 321 materials.

GMS is a medium-sized professional company integrating wholesale sales and processing of stainless steel materials, providing customers with comprehensive services including sales, processing, and logistics distribution.

Our products serve numerous industries including nuclear power engineering, petrochemical, electric furnace, boiler, pressure vessel, electric heating equipment, textile, pharmaceutical, mechanical equipment, kitchen equipment, solar energy, and papermaking equipment, with customers nationwide.

Main products include: 321, 310s, 309S, 316L, 304, 316TI, 410S, 202, 201, 904L, 317L, 2205, 2304 duplex stainless steel, as well as 800H, 600H high nickel alloys. We maintain over 3000 tons of standing stock and can arrange special orders for unique steel types and specifications. Additional services include embossing (domestic and Japanese), mirror polishing, plate polishing, grinding, flattening, and cutting (laser, water knife, plasma) to meet diverse customer requirements.