Chemical Composition:
Cr (20.0–22.0%), Ni (10.0–12.0%), Si (1.4–2.0%), N (0.14–0.20%), with rare earth metals (REM) for enhanced oxidation resistance34.
Mechanical Properties:
Tensile Strength: 650–800 MPa | Yield Strength: 300–400 MPa | Elongation: 35–50%34.
High-Temperature Stability: Maintains structural integrity up to 1150°C with minimal creep deformation34.
Oxidation Resistance: Forms a self-healing Cr₂O₃ oxide layer under extreme heat, ensuring long-term durability58.
Optimized Processing Capabilities
253MA round bars excel in versatile manufacturing workflows:
Welding: Compatible with TIG/MIG methods using AWS E309L-16 electrodes; low carbon content minimizes carbide precipitation34.
Hot/Cold Forming:
Hot working: 900–1100°C (annealing post-processing recommended)45.
Cold forming: Requires intermediate annealing for stress relief34.
Machinability: Use low cutting speeds and high-lubricity tools to mitigate work hardening
253MA round bars dominate critical sectors requiring resilience in harsh environments:
Petrochemical & Power Generation:
- Reactors, catalyst tubes, and boiler components in refineries34.
- High-temperature steam pipelines (>800°C) in thermal power plants47.
Aerospace & Energy:
- Combustion chambers, turbine blades, and nuclear reactor internals45.
Heat Treatment & Metallurgy:
- Radiant tubes, furnace rollers, and sintering trays operating above 1000°C
Why Choose Our 253MA Round Bars?
- Certified Quality: Compliant with UNS S30815, EN 1.4835, and ASTM A276 standards34.
- Custom Solutions: Available in Ø10–250mm diameters, precision-ground or polished finishes.
- Cost Efficiency: Superior performance-to-price ratio compared to 310S and similar alloys34.
Elevate your engineering projects with 253MA’s proven reliability. Contact us today for samples and technical support!
