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Yunus Sheets and Plates, located in Istanbul, Turkey, is a reputable manufacturer and supplier of Stainless Steel 321H Sheets and Plates. They specialize in providing high-performance stainless steel solutions that cater to the needs of demanding industries. These sheets and plates are well-known for their outstanding resistance to oxidation and intergranular corrosion, making them ideal for high-temperature applications. With state-of-the-art production facilities and rigorous quality control, Yunus Sheets and Plates ensures that their products meet international standards. The durability, strength, and heat stability of Stainless Steel 321H Sheets and Plates have made them a go-to choice for various global applications, particularly in construction, petrochemical, and mechanical sectors.
The composition of Stainless Steel 321H Sheets and Plates includes iron, chromium (17–19%), nickel (9–12%), titanium stabilizers, carbon, and trace elements like manganese, silicon, phosphorus, and sulfur. The addition of titanium boosts resistance to carbide precipitation, while the higher carbon content enhances creep resistance and high-temperature strength. Mechanically, these sheets and plates showcase impressive tensile and yield strength, good toughness, and remarkable stability under thermal stress. These characteristics make Stainless Steel 321H Sheets and Plates perfect for continuous use in high-temperature environments, ensuring they remain durable and reliable even in corrosive and heat-intensive conditions.
| 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 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(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 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
| 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 321H sheets and plates provide excellent corrosion resistance, especially in high-temperature environments. They are extremely durable, resistant to oxidation, and are curing up to 870°C (1600°F). The intergranular corrosion resistance makes them ideal for welding-related applications. The stability of the composite is enhanced by the addition of titanium, which helps prevent carbide precipitation. Stainless steel 321 is also known for its durability, durability and ability to maintain structural integrity under extreme conditions. These properties make it suitable for industries such as aerospace, chemical and power generation.
Stainless Steel 321H Sheets and Plates find extensive applications in industries that demand heat resistance and durability. In the petrochemical and chemical sectors, they are commonly used for process piping, reactor vessels, and heat exchangers. The power generation industry relies on them for boilers, superheaters, and furnace components due to their excellent creep resistance. In aerospace and automotive sectors, they are utilized in exhaust systems and high-temperature parts. Additionally, the construction and marine industries use them for structural applications that face heat and corrosion. Their unique combination of strength, thermal stability, and resistance makes them an essential material across various fields.
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