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253MA Austenitic Stainless Steel Cold-Rolled Thin Sheet
A high-performance heat-resistant stainless steel with exceptional oxidation resistance and mechanical strength at elevated temperatures (up to 1100°C), optimized for cold-rolling precision.
- Enhanced High-Temperature Stability:Rare earth elements (Ce) and nitrogen (N) alloying extend service life under cyclic heating conditions.
- Superior Corrosion Resistance:Chromium-silicon-aluminum oxide layer resists scaling in sulfur-rich environments.
- Cold-Rolling Precision:Thickness tolerance ±0.02mm, surface roughness Ra ≤ 0.5μm (mirror finish available).
- Mechanical Properties:Typical yield strength 450MPa, elongation 40% (annealed state).
Chemical Composition (wt%)
Element | C | Si | Mn | P | S | Cr | Ni | N | Ce |
Range | 0.04-0.08 | 1.4-2.0 | ≤0.8 | ≤0.040 | ≤0.030 | 20.0-22.0 | 10.0-12.0 | 0.14-0.20 | 0.03-0.08 |
Surface Treatment
- 2B Finish:Standard cold-rolled, annealed, pickled, and skin-passed (Ra 0.1-0.5μm).
- BA Finish:Bright annealed reflective surface (Ra ≤0.1μm) for decorative applications.
- Embossed/Textured:Custom patterns for anti-slip or aesthetic needs.
Why Choose Us ?
- Material Consistency:Batch-to-bcomposition control with OES spectrometry (deviation <±0.01% for critical elements).
- Custom Sizing:Width 600-2000mm, thickness 0.3-4.0mm (non-standard dimensions available).
- Certifications:ISO 9001, PED 2014/68/EU, and mill test reports with traceable heat numbers.
Applications & Industries
Aerospace:
High-power density actuators.
Electronics:
Precision sensors & MEMS components.
Energy:
Magnetic coupling devices for turbines.
Frequently Asked Questions
Q: Minimum bending radius?
A: 253MA offers 20% higher creep strength at 900°C and better thermal cycling resistance due to rare earth modification.
Q: Minimum order quantity?
A: 1.5× thickness for 90° bends (annealed condition).
Q: Lead time for custom sizes?
A: About 15 days depending on quantity (stock items ship in 3 days).
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