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Based in Delhi, India, Kunj Sheets and Plates is a well-known producer and supplier of stainless steel 309H sheets and plates. Our speciality is manufacturing 309H sheets and plates that are intended for high-temperature and corrosion-resistant applications. We are well-known for providing high-performance stainless steel products. Our 309H sheets and plates are made with high-quality raw materials and state-of-the-art technology, providing exceptional heat resistance, weldability, and durability. Our products, which are widely used in refineries, power plants, and heat treatment equipment, adhere to strict international standards. Kunj Sheets and Plates guarantees prompt delivery, quality control, and customised solutions to satisfy a range of industrial demands in India and international markets.
A high-carbon variant of 309, stainless steel 309H provides increased strength at higher temperatures. About 23% chromium, 13% nickel, and a higher carbon content (0.04%–0.10%) for enhanced creep resistance are all included in its chemical composition. It provides an elongation of 40%, a yield strength of 205 MPa, and a tensile strength of about 550 MPa. At temperatures as high as 1000°C, this alloy does not oxidise and retains its structural integrity. It is appropriate for demanding applications involving heat, pressure, and corrosive conditions due to its mechanical robustness and thermal stability.
Specifications | ASTM A240 / ASME SA240 |
Size | 1/4″ to 4″ |
Range | 5mm To 150mm |
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 | Ni | Fe | |
SS 309 | 0.20 | 2 | 1 | 0.045 | 0.030 | 23 | 14 | 60 | |
SS 309H | 0.04-0.10 | 2.0 | 0.75 | 0.045 | 0.03 | 22.0-24.0 | 15.0 | 58.0-63.0 |
Grade | Tensile Strengtd ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) max |
309/S | 75 | 30 | 40 | 95 |
309/H | 40 | 30 | 40 | 217 |
STANDARD | WERKSTOFF NR. | UNS |
SS 309H | 1.4833 | S30909 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Kunj Sheets and Plates based in Chennai, India, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.
Stainless steel 309H sheets and plates offer many advantages, including excellent resistance to high temperature oxidation and corrosion, making them ideal for harsh environments Due to the high carbon content they retain strength and staying power exist longer at high temperatures (up to 2000°F or 1093°C ). The material also boasts excellent resistance to heat fatigue, stress and cracking. Stainless steel 309H is highly weldable, ensuring ease of fabrication. It is also scratch resistant and can withstand acidic and basic environments. These properties make it suitable for industries such as aerospace, chemical processing and power generation.
Yes, we offer custom sizes for Stainless Steel 309H Sheet and Plates to meet specific project needs. Our team at Kunj Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@kunjsheetsandplates.co.in.
Because of their superior oxidation resistance and mechanical strength, stainless steel 309H sheets and plates are frequently used in corrosive and high-temperature environments. Heat exchangers, boilers, furnace parts, kilns, and exhaust systems in the petrochemical and power generation sectors are typical uses. They are perfect for fabrication in settings that require durability under stress, creep resistance, and thermal cycling. Additionally, the alloy finds application in pressure vessels, thermal processing facilities, and incinerators. For structural components subjected to high temperatures and chemicals for extended periods of time, its exceptional weldability and high-temperature performance make it the material of choice.
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