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253MA Stainless Steel Plate Heat Resistant 4.0mm 5.0mm for Boiler
| Place of Origin | China |
|---|---|
| Merknaam | TISCO BAOSTEEL |
| Certificering | ISO |
| Model Number | UNS S30815 / 253ma |
| Minimum Order Quantity | 500 kgs |
| Prijs | 2500 - 3200 USD/Ton |
| Packaging Details | standard packing for export |
| Delivery Time | 5 - 12 days based on the quantity |
| Payment Terms | T/T, Western Union |
| Supply Ability | 4 Ton per week |
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xProductdetails
| Products | Stainless Steel Plate | Grade | 304 304L 316L 310S 321 2205 2304 2507 904L 254SMO 630 .etc |
|---|---|---|---|
| Thickness | 1.0 - 80.0mm | Width | 1219mm 1500mm 1800mm |
| Surface | NO.1 2B | Brand | BAOSTEEL TISCO |
| Standard | ASTM EN DIN JIS GB | Loading Port | Shanghai Port |
| Markeren | 253MA stainless steel boiler plate,heat resistant stainless steel plate,5.0mm stainless steel boiler plate |
||
Productomschrijving
Alloy UNS S30815 / 253MA Stainless Steel Plate Heat Resistant SS Plate 4.0mm 5.0mm for Boiler
Products Specification
| Products Name | S30815 / 253ma Stainless Steel Plate Sheet |
| Main Grades | Stainless Steel J1, J2, J4, 201, 202, 301, 304, 304H, 304L, 309, 309S, 310, 310S, 316, 316L, 316TI, 317L, 321, 321H, 347,348, 409, 410, 410S, 420, 430, 441, 904L,630,631,254SMO,654SMO,253MA,2205,2304,2507.etc |
| Thickness | 0.6 - 80.0mm |
| Width | 1250mm,1500mm ,1800mm,2000mm, or custom other size as request |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, AS PER CUSTOMER’S REQUIREMENT |
| Service | Laser Cutting |
| Form | Plate / sheet |
| Cutting Shape | Round , Square, or any special shape as request |
| Test Certificate | Yes. |
| Finish | NO.1, 2B, 2D, 2H, 2R, No.4, HAIRLINE, SCOTCH BRITE, SATIN FINISH, NO.8, BA. |
| Brand | TISCO, LISCO,BAOSTEEL , POSCO, JISCO |
Alloy UNS S30815 / 253MA Stainless Steel Plate: Heat Resistant Solution for Boilers
Alloy UNS S30815, commonly known as 253MA, is a premium heat-resistant austenitic stainless steel plate engineered for high-temperature applications, particularly in boiler systems. Available in thicknesses of 4.0mm and 5.0mm, this stainless steel combines excellent oxidation resistance, high-temperature strength, and formability, making it a reliable choice for demanding thermal environments.
Chemical Composition
The chemical composition of UNS S30815 (253MA) is carefully balanced to enhance its heat resistance and mechanical properties. Key elements include:
| Element | Content (wt%) |
|---|---|
| Carbon (C) | 0.05 - 0.10 |
| Chromium (Cr) | 20.0 - 22.0 |
| Nickel (Ni) | 10.0 - 12.0 |
| Manganese (Mn) | 1.4 - 2.0 |
| Silicon (Si) | 0.8 - 1.2 |
| Nitrogen (N) | 0.14 - 0.20 |
| Cerium (Ce) | 0.03 - 0.08 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.015 |
The addition of cerium (a rare earth element) improves oxidation resistance by forming a stable, adherent oxide layer on the surface, while nitrogen enhances high-temperature strength and corrosion resistance.
Mechanical Properties of S30815 Stainless Steel
UNS S30815 (253MA) exhibits impressive mechanical properties, especially at elevated temperatures, which are critical for boiler applications:
- Tensile Strength: ≥ 650 MPa (at room temperature)
- Yield Strength (0.2% offset): ≥ 300 MPa (at room temperature)
- Elongation: ≥ 40% (in 50mm gauge length)
- Hardness: ≤ 200 HB (Brinell)
These properties remain stable even at temperatures up to 1000°C, ensuring the material can withstand thermal cycling, pressure, and stress in boiler operations.
Product Standards of UNS S30815 Stainless Steel Plate
UNS S30815 (253MA) stainless steel plates are manufactured in compliance with international standards to ensure consistency and quality:
- UNS: UNS S30815
- EN/DIN: 1.4835
- ASTM: Often referenced under ASTM A240/A240M (for chromium-nickel stainless steel plates, sheets, and strips)
- Other Specifications: May also conform to customer-specific standards for boiler and pressure vessel applications.
Similar Grades
While UNS S30815 (253MA) is unique in its composition, it is often compared to other heat-resistant stainless steels, including:
- 310S (UNS S31008): A high-chromium, high-nickel austenitic stainless steel with good oxidation resistance, but lower nitrogen content than 253MA, resulting in slightly lower high-temperature strength.
- 309S (UNS S30908): Suitable for high-temperature applications but with lower creep strength than 253MA.
- 1.4828 (316Ti): Offers good corrosion resistance but is less optimized for extreme heat compared to 253MA.
Product Features
UNS S30815 (253MA) stainless steel plates stand out due to the following key features:
- Exceptional Oxidation Resistance: The cerium and chromium content forms a protective oxide layer, resisting scaling and corrosion at temperatures up to 1100°C.
- High-Temperature Strength: Nitrogen and solid-solution strengthening elements maintain strength and creep resistance under prolonged heat exposure.
- Good Formability and Weldability: Can be easily cut, bent, and welded using standard techniques, with minimal post-weld heat treatment required.
- Thermal Fatigue Resistance: Handles repeated heating and cooling cycles without cracking, critical for boiler systems.
Applications
Due to its heat resistance and mechanical stability, UNS S30815 (253MA) stainless steel plates are widely used in:
- Boiler Systems: Fire tubes, water walls, superheaters, and reheaters, where high temperatures and pressure are present.
- Industrial Furnaces: Components such as radiant tubes, furnace liners, and heat exchangers.
- Power Generation: Parts in gas turbines, incinerators, and waste-to-energy plants.
- Chemical Processing: Equipment exposed to high-temperature corrosive environments.
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