Stainless Steel 321 Sheets, Plates & Coils from American Metallix Steel Co. are engineered to meet demanding industrial, mechanical, and structural requirements across global markets. Known for their excellent resistance to intergranular corrosion and high-temperature stability, these products are widely used in environments where thermal exposure and stress conditions are critical. Industries such as chemical processing, aerospace, power generation, and fabrication rely on this titanium-stabilized austenitic stainless steel grade for consistent performance and long service life. The material maintains structural integrity even under cyclic heating conditions, making it a preferred choice for high-temperature applications.
Stainless Steel 321 Sheets, Plates & Coils are primarily composed of chromium, nickel, and titanium, with titanium acting as a stabilizing element to prevent carbide precipitation during welding and heating. The presence of titanium enhances resistance to sensitization, ensuring the material remains corrosion-resistant after exposure to elevated temperatures. This grade typically contains around 17-19% chromium and 9-12% nickel, offering excellent oxidation resistance up to approximately 870°C in continuous service. Its austenitic structure provides superior toughness, non-magnetic properties, and good formability. The material also exhibits reliable creep strength and stress rupture properties, making it suitable for pressure vessels, heat exchangers, and furnace components.
Stainless Steel 321 Sheets, Plates & Coils offer a balanced combination of mechanical strength, corrosion resistance, and durability. The material performs exceptionally well in oxidizing environments and resists scaling at high temperatures, which extends its usability in harsh industrial conditions. Its weldability is another key advantage, as the titanium stabilization minimizes the risk of intergranular corrosion without requiring post-weld annealing. In terms of machinability, it can be processed efficiently with standard tooling practices. From a cost-efficiency perspective, the long service life and reduced maintenance needs make it a practical investment for industries seeking reliability and performance. Its ability to retain strength and resist deformation under stress ensures consistent operation over extended periods.
In chemical processing plants, Stainless Steel 321 Sheets, Plates & Coils are widely used for manufacturing reactors, storage tanks, and piping systems that handle aggressive chemicals and high temperatures. The material’s resistance to corrosion and oxidation ensures safety and operational efficiency in demanding environments. In the aerospace sector, Stainless Steel 321 Sheets, Plates & Coils are used in exhaust systems, engine components, and heat shields where exposure to extreme temperatures is constant. The alloy’s ability to maintain structural stability under thermal stress makes it essential for critical aerospace applications.
In power generation facilities, Stainless Steel 321 Sheets, Plates & Coils are utilized in boilers, superheaters, and heat exchangers. Their high-temperature strength and resistance to scaling contribute to improved energy efficiency and reduced downtime. In structural engineering and fabrication, Stainless Steel 321 Sheets, Plates & Coils are used for constructing frameworks, supports, and industrial platforms that require both strength and corrosion resistance. The material ensures long-term reliability in outdoor and industrial environments.
American Metallix Steel Co. stands among trusted Stainless Steel 321 Sheets, Plates & Coils Manufacturers known for delivering precision-engineered products that meet international quality benchmarks. The company focuses on consistent quality control, advanced manufacturing techniques, and customer-specific customization. As reliable Stainless Steel 321 Sheets, Plates & Coils Suppliers, the company ensures timely delivery and availability across various dimensions and thickness ranges. Its distribution network supports industries with urgent and bulk requirements.
Recognized Stainless Steel 321 Sheets, Plates & Coils Stockists maintain a ready inventory to meet immediate project needs. This ensures reduced lead times and seamless procurement for industrial buyers and contractors. Global reach is strengthened by experienced Stainless Steel 321 Sheets, Plates & Coils Exporters who cater to international markets with compliant packaging, documentation, and logistics support aligned with export standards.
Stainless Steel 321 Sheets, Plates & Coils are manufactured in accordance with widely accepted ASTM and ASME standards to ensure quality and performance. Common specifications include ASTM A240 for chromium and chromium-nickel stainless steel plates, sheets, and strips used in pressure vessels and general applications. The equivalent ASME SA240 standard is applied in boiler and pressure vessel construction. These standards define mechanical properties, chemical composition, and testing requirements, ensuring the material meets strict industrial and engineering demands.
Steel products such as bars, pipes, tubes, plates, sheets, and coils are classified under various global standards to maintain uniformity and traceability. ASTM and ASME standards are widely used in North America, while EN standards are prevalent in Europe. DIN standards originate from Germany, and JIS specifications are followed in Japan. ISO standards provide global harmonization across different regions. Each system defines material grades, chemical composition, mechanical properties, and dimensional tolerances. Stainless Steel 321 may be referred to as UNS S32100 under ASTM, X6CrNiTi18-10 under EN, and SUS 321 under JIS, ensuring consistency across international markets and engineering documentation.
American Metallix Steel Co. is one of the leading manufacturer and supplier of Stainless Steel 321 Sheets, SS 321H Plates, ASTM A240 321 Coils and UNS S32100/S32109 variants at the best price in India.
Request Latest Price & Stock AvailabilityStainless Steel 321 Sheets, Plates & Coils are available in different standards, dimensions, sizes, surface finishes, hardness conditions and forms as specified below.
| Specifications | Details |
|---|---|
| Specifications | ASTM A240 / ASME SA240 |
| Dimensional Specification | JIS, AISI, ASTM, GB, DIN, EN, etc |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Thickness | 4mm-100mm |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Surface Finish | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, chequered, embossed, hairline, sand blast, Brush, etching, Hot rolled plate (HR), Cold rolled sheet (CR), SATIN (Met with Plastic Coated), etc. |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard, etc. |
| Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange), etc. |
| Surface Finish | No.1, No.4, No.8 Mirror Finish, 2B |
Stainless Steel 321 Sheets, Plates & Coils are available in the standards, dimensions, widths, thicknesses, lengths, surface finishes, hardness conditions and forms listed in the specification table above.
The chemical composition of Stainless Steel 321 Sheets, Plates & Coils is represented by the specified values for carbon, manganese, silicon, phosphorus, sulfur, chromium, nitrogen, nickel and titanium.
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
|---|---|---|---|---|---|---|---|---|---|
| SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 - 19.00 | 0.10 max | 9.00 - 12.00 | 5(C+N) – 0.70 max |
The table above presents the chemical composition values supplied for Stainless Steel 321 Sheets, Plates & Coils, including carbon, manganese, silicon, phosphorus, sulfur, chromium, nitrogen, nickel and titanium.
The mechanical properties of Stainless Steel 321 Sheets, Plates & Coils include density, melting point, tensile strength, yield strength and elongation values as provided below.
| Density | Melting Point | Tensile Strength |
Yield Strength (0.2% Offset) |
Elongation |
|---|---|---|---|---|
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
The table presents the density, melting point, tensile strength, yield strength and elongation values supplied for Stainless Steel 321 Sheets, Plates & Coils.