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Yunus Sheets and Plates, based in Istanbul, Turkey, is a well-respected manufacturer and supplier of high-quality stainless steel products, including Stainless Steel 321 Sheets and Plates. Renowned for their commitment to quality, consistency, and precision, the company serves industries that need materials with outstanding heat and corrosion resistance. Their Stainless Steel 321 Sheets and Plates are crafted using cutting-edge processes to guarantee dimensional accuracy, strength, and reliability. With a strong focus on international standards and customer satisfaction, Yunus Sheets and Plates has established itself as a trusted provider of stainless steel solutions in fields like aerospace, chemical processing, and power generation.
Stainless Steel 321 Sheets and Plates are titanium-stabilized austenitic alloys known for their remarkable resistance to intergranular corrosion. The typical chemical makeup features Chromium (17–19%), Nickel (9–12%), and Titanium (≥5xC%), along with small amounts of Manganese, Silicon, and Carbon. These plates boast a tensile strength of about 515 MPa, a yield strength of 205 MPa, and an elongation of 40%. The 321 grade maintains mechanical stability and oxidation resistance at temperatures reaching up to 900°C, making it perfect for high-temperature applications like heat exchangers, exhaust systems, and chemical processing equipment.
| Specifications | : | ASTM A240 / ASME SA240 |
| Thickness | : | 4mm-100mm |
| Width | : | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Length | : | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Surface | : | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc |
| Finish | : | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Form | : | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc. |
| 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 |
| 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 % |
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| Material | Size | Thickness |
| PLATES & SHEETS | 1000 mm x 2000 mm | 0.1mm To 100 mm Thickness |
| 1220 mm x 2440 mm (4′ x 8′) | ||
| 1250 mm x 2500 mm | ||
| 1500 mm x 3000 mm | ||
| 2000 mm x 4000 mm | ||
| 2000 mm x 2000 mm |
| Surface Finish | Definition | Application |
|---|---|---|
| 2B | Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster. | Medical equipment, Food industry, Construction material, Kitchen utensils. |
| BA | Those processed with bright heat treatment after cold rolling. | Kitchen utensils, Electric equipment, Building construction. |
| NO.3 | Those finished by polishing with No.100 to No.120 abrasives specified in JIS R6001. | Kitchen utensils, Building construction. |
| NO.4 | Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001. | Kitchen utensils, Building construction, Medical equipment. |
| HL | Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size. | Building Construction. |
| NO.1 | The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling. | Chemical tank, pipe |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Stainless Steel 321 Sheets and Plates find extensive use in industries that require high strength and resistance to heat and corrosion. They are particularly suited for applications in aerospace (engine components, thermal shields), chemical processing (acid tanks, pressure vessels), oil and gas, and high-temperature exhaust systems. The titanium content helps prevent carbide precipitation during welding, making them ideal for welded structures that are exposed to high temperatures. In thermal processing equipment, these plates excel in demanding environments.
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