Here’s a comprehensive summary of 253 MA Flanges based on the provided information:
Composition:
- 253 MA:
- Carbon (C): 0.05 – 0.10%
- Nickel (Ni): 10.00-12.0%
- Silicon (Si): 1.40 – 2.00%
- Nitrogen (N): 0.14 – 0.20%
- Sulfur (S): 0.03 – 0.08%
- Manganese (Mn): 0.80% max
- Phosphorus (P): 0.04% max
- Chromium (Cr): 20.00 – 22.00%
- Cerium (Ce): 0.03 – 0.08%
- Iron (Fe): Balance
Mechanical Properties:
- Tensile Strength: 600 MPa
- Yield Strength (0.2% Offset): 310 MPa
- Elongation: 40%
- Hardness: 95 (Rockwell B)
Features and Applications:
- Temperature Resistance: 253 MA Flanges offer excellent resistance to oxidation up to 1150°C (2102°F) and can outperform Grade 310 in carbon, nitrogen, and sulfur-containing atmospheres.
- Microstructure: Austenitic stainless steel alloyed with nitrogen and rare earth elements for superior high-temperature performance.
- Corrosion Resistance: Resistant to oxidation, sulfidation, and erosion/abrasion at very high temperatures, making it suitable for applications in steel mills, blast furnaces, and other high-temperature environments.
- Formability: Maintains good formability despite its high strength, allowing for easy fabrication into various shapes and structures.
- Creep Resistance: Offers exceptional creep strength due to a combination of nitrogen, carbon, and cerium additives.
- Oxidation Resistance: Enhanced by the presence of cerium and silicon, which contribute to stability against oxide formation in cyclic conditions.
- Standards and Specifications: Manufactured according to ASTM A/ASME SA182 specifications, adhering to ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, EN-1092 standards for dimensional accuracy and performance.
- Applications: Widely used in industries requiring high-temperature resistance and corrosion resistance, such as chemical processing, steel manufacturing, power generation, and thermal processing plants.
For more information :
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