Premium-grade stainless steel 253MA bars made for high-temperature and high-stress industrial applications are available from Vinit Stainless, a reputable manufacturer and supplier with headquarters in Chennai, India. Austenitic stainless steel 253MA is renowned for its exceptional structural stability, exceptional strength at high temperatures, and superior resistance to oxidation. Our 253MA bars are produced at Vinit Stainless using premium raw materials and cutting-edge techniques to guarantee they satisfy global quality standards. Power plants, furnaces, and thermal processing all make extensive use of these bars. We offer dependable solutions for the most demanding operational environments thanks to our precise engineering and dedication to longevity.
Chromium (~20–22%), nickel (~10–12%), and sizable additions of silicon (~1.4–2.0%) and nitrogen (~0.14–0.20%) make up stainless steel 253MA bars, which improve resistance to oxidation and creep. For enhanced high-temperature performance, the alloy also contains trace amounts of rare earth metals. These bars usually have a yield strength of 310 MPa, a tensile strength of 600 MPa, and good creep resistance up to 1150°C. They are suitable for prolonged service in harsh thermal environments due to their high-temperature oxidation resistance and austenitic structure, which guarantees toughness.
| Specifications | ASTM A276 / ASME SA276 & ASTM A479 / ASME SA276 |
| Range | 3.17 MM TO 350 MM DIA |
| Dia Meter | 25mm to 152mm |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Finish | Bright, Polish & Black |
| Form | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging etc |
| Condition | Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished |
| Grade | C | Mn | Si | S | P | Ni | Cr | Fe | Ce | N |
| 253 MA | 0.05 – 0.1 | 0.8 max | 2.0 max | 2.0 max | 0.04 max | 10.0 – 12.0 | 20.0 – 22.0 | Bal | 0.03 – 0.08 | 0.14 – 0.20 |
| Element | Density | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 253 MA | 7.8 g/cm3 | 600 MPa | 310 MPa | 40 % |
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253Ma round bars provide exceptional high-temperature strength and oxidation resistance, ideal for use in furnace components, petrochemical industries, and high-temperature applications requiring durability and performance.
253Ma flat bars are designed for high-temperature and corrosive environments, used in furnace components and petrochemical industries, offering superior strength, oxidation resistance, and long-lasting performance.
253Ma square bars are suitable for high-temperature applications, providing excellent strength and resistance to oxidation, making them ideal for use in industrial equipment and high-stress environments.
253Ma rectangular bars offer high-temperature strength and oxidation resistance, used in furnace components and industrial applications, ensuring durability and performance in extreme environments.
253Ma hexagonal bars deliver outstanding strength and oxidation resistance at high temperatures, perfect for use in industrial machinery, furnace components, and applications requiring durability in harsh conditions.
253Ma T-bars provide excellent performance in high-temperature environments, used for structural support and components in industrial applications, offering superior strength, oxidation resistance, and reliability.
Applications involving constant exposure to high temperatures and mechanical stress are the main uses for stainless steel 253MA bars. Heat treatment, petrochemical processing, power generation, and cement manufacturing are examples of common industries. They are perfect for producing boiler structures, kiln parts, heat exchangers, burner nozzles and furnace parts. 253MA bars are especially well-suited for settings requiring both high strength and thermal fatigue due to their exceptional oxidation resistance and structural integrity at temperatures above 1000°C. They are a preferred material in equipment that is subjected to oxidative wear and thermal cycling because of their combination of formability, weldability, and heat resistance.
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