1.4833 Stainless Steel Heat-Resistant Plate
Jan 29, 2026
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Are you looking for high-quality heat-resistant stainless steel plates for high-temperature applications? Our 1.4833 stainless steel heat-resistant plates are specifically designed for high-temperature environments. This austenitic heat-resistant stainless steel plate offers excellent oxidation resistance and is suitable for temperatures ranging from 1000°C to 1038°C. It contains a high content of chromium and a moderate amount of nickel. This stainless steel plate is renowned for its superior performance in high-temperature, sulfur-containing environments and is commonly used in industrial furnaces, boiler components, and exhaust systems.
What is 1.4833 stainless steel plate?
1.4833 stainless steel, also known as X15CrNiSi20-12 / AISI 309S, is a high-chromium, nickel-based austenitic stainless steel with the following characteristics: high temperature resistance (up to 1000°C), excellent oxidation and scaling resistance, and mechanical stability under thermal stress. It is widely used in applications where ordinary stainless steels (such as 304 or 316) fail due to high temperatures or oxidation.
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Product |
309S Heat resisting austenitic stainless steel plate sheet |
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Grade |
321/321H/ 309/ 309S/ 310/ 310S |
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Surface Finish |
NO.1 2B, BA, NO.4, 8K, HL, Pickling, Embossing, Satin, Mirror, Polished ect |
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Technique |
Cold rolled; Hot rolled; Hot forming; Cold forming; Heat treatment; Machinability; Welding; Cutting; Perforating |
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Thickness |
0.3-4mm cold rolled; |
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Width |
600mm, 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm |
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Length |
2000mm, 2438mm, 3000mm, 5800mm, 6000mm |
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Film coating |
Species |
PVC film/PE film/Laser film/Oil film/Water membrane/Self-lining/Electrostatic film, etc |
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Thickness |
3c/5c/7c/10c and so on |
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Color |
Black/white/Blue or customized |
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What is the maximum service temperature of 1.4833 stainless steel plate?
The maximum continuous service temperature for 1.4833 (AISI 309S) stainless steel plate is approximately 1000°C to 1050°C (1832°F - 1922°F) in oxidizing, low-sulfur air conditions. Peak temperatures can reach up to 1100°C (2012°F).
How does 1.4833 compare to 304 and 316 stainless steel?
1.4833 (often marketed as 309S) is a heat-resistant stainless steel designed for high-temperature service, offering better oxidation resistance up to \(1000^{\circ }C\) than 304 (1.4301) or 316 (1.4401). Unlike 316, 1.4833 lacks significant molybdenum, making it inferior in corrosion resistance to 316 but superior in extreme heat to both 304 and 316.
309 309S Stainless Steel Plate Supplier
Factory Capacity: Over 50,000 square meters of production area, equipped with CNC cutting, slitting, and polishing production lines, with an annual export volume exceeding 30,000 tons, fully compliant with ISO 9001, SGS, and BV certifications.
Quality Assurance: 100% PMI testing, ultrasonic testing, and mechanical property testing. Advanced annealing and leveling equipment ensure consistent flatness and precision.
Global Market: We are renowned for our consistent quality and on-time delivery, supplying customers in Europe, the Middle East, Southeast Asia, and South America.
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MOQ
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25tons.We also can accept sample order.Shipment time Within 15-20 workdays after receiving deposit or L/C
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Export packing
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Waterproof paper, and steel strip packed.
Standard Export Seaworthy Package.Suit for all kinds of transport,or as required |
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Capacity
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250,000 tons/year
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