- Excellent oxidation resistance up to 1150°C
- High creep strength and thermal stability
- Superior resistance to carburization and sulfidation
- Stable performance under thermal cycling conditions
- Good weldability and fabrication properties
- Cost-effective alternative to nickel-based heat-resistant alloys
253MA Stainless Steel Plate
253MA stainless steel plate is a high-performance heat-resistant austenitic stainless steel designed for extreme temperature environments. It provides excellent oxidation resistance, high creep strength, and stable mechanical properties at temperatures up to 1150°C (intermittent use).
This grade is widely used in furnace construction, high-temperature industrial equipment, and thermal processing systems where standard stainless steels cannot perform reliably.
Key Features
- Excellent oxidation resistance up to 1150°C
- High creep strength and thermal stability
- Superior resistance to carburization and sulfidation
- Stable performance under thermal cycling conditions
- Good weldability and fabrication properties
- Cost-effective alternative to nickel-based heat-resistant alloys
Chemical Composition (Typical)
- Chromium (Cr): 20.0 – 22.0%
- Nickel (Ni): 10.0 – 12.0%
- Silicon (Si): 1.4 – 2.0%
- Nitrogen (N): 0.14 – 0.20%
- Carbon (C): ≤ 0.08%
- Manganese (Mn): ≤ 0.8%
- Rare earth elements (Ce): trace addition for oxidation resistance
- Iron (Fe): Balance
Mechanical Properties
- Tensile Strength: ≥ 650 MPa
- Yield Strength: ≥ 310 MPa
- Elongation: ≥ 40%
- Excellent strength retention at high temperatures
- Stable mechanical performance under thermal stress
Available Specifications
- Thickness: 3 mm – 100 mm (customizable)
- Width: 1000 mm – 2000 mm
- Length: 2000 mm – 6000 mm or custom cut size
- Form: Hot rolled plate / cut plate
- Surface Finish: Pickled, No.1 finish, or customized
- Standard: ASTM A240 / EN 1.4835 / UNS S30815
Heat Resistance Performance
- Continuous service temperature: up to 1050°C
- Short-term exposure: up to 1150°C
- Excellent resistance to oxidation in air
- Stable performance in thermal cycling conditions
- Suitable for long-term high-temperature service
Applications
- Industrial furnace construction
- Heat treatment equipment
- Boiler and combustion systems
- Petrochemical high-temperature systems
- Cement and glass production equipment
- Power generation systems
- Heat shields and thermal barriers
- High-temperature structural components
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