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Cold-Rolled 309S Stainless Steel Sheet – High-Temperature Corrosion Resistance for Industrial Applications
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xProduct Details
| Products | Stainless Steel Sheet | Grade | 309S |
|---|---|---|---|
| Thickness | 0.6 - 16.0mm | Tech | Cold Rolled,hot Rolled , Forged |
| Width | 1000mm 1219mm 1500mm Or Customs As Request | Surface | 2B BA NO.1 |
| Standard | ASTM GB JIS EN DIN | MOQ | 1 Ton |
Product Description
Cold-Rolled 309S Stainless Steel Sheet – High-Temperature Corrosion Resistance for Industrial Applications
Stainless Steel Sheet Specifications
| Name | 309S stainless steel sheet |
| Our Grade |
200 Series: 201 202 300 Series: 301 304,304L,304H,309S,310S,314,316L,316Ti,316H,316LN,317L,321,329,347 400 Series: 409L,410,410S,416,420,430,431,436L.439,441,443,444,445,446 Super Stainless Steel: 904L,926,254SMO,654SMO,15-5PH,17-4PH,17-7PH.etc Nickel Alloy: C276, C22,G35,Alloy X,Monel 400,K500,Inconel 600,601,617,625,718,Incoloy 800,800H,800HT,825.etc |
| Technique | Hot Rolled, Cold Rolled,Forged |
| Standard | JIS, AISI, ASTM, DIN, TUV, BV, SUS, etc |
| Thickness | 0.1 – 80.0mm |
| Width range | 10mm – 2000mm |
| Length | Customized |
| Finish | 2B, BA, No.4, 8k, Brushed,Hairline,PVD Coating,Sandblasted |
| Service | Laser Cutting, Bending |
| Sample | Available |
Cold-Rolled 309S Stainless Steel Sheet – High-Temperature Corrosion Resistance for Industrial Applications
Overview
Cold-rolled 309S stainless steel sheet is a high-alloy austenitic stainless steel specifically engineered for excellent performance in elevated-temperature environments. Its enhanced chromium (22–24%) and nickel (12–15%) content, combined with low carbon levels (≤0.08%), provide superior oxidation resistance, creep strength, and resistance to sulfidation and carburization—making it ideal for demanding industrial applications.
Key Features
- High-Temperature Stability: Retains mechanical integrity up to 1,000°C (1,832°F); continuous service temperature typically up to 980°C.
- Excellent Oxidation Resistance: Forms a stable, protective chromium oxide layer at high temperatures.
- Low Carbon Content (“S” Grade): Minimizes carbide precipitation during welding or high-temp exposure, improving weldability and intergranular corrosion resistance.
- Good Fabricability: Cold rolling improves surface finish, dimensional accuracy, and mechanical strength compared to hot-rolled counterparts.
- Corrosion Resistance: Resists scaling and maintains structural integrity in aggressive atmospheres (e.g., combustion gases, thermal cycling).
Typical Applications
- Heat Treatment Equipment: Furnace parts, radiant tubes, muffles
- Chemical Processing: Reactors, retorts, and piping exposed to high-temp corrosive media
- Power Generation: Boiler baffles, exhaust systems, flue gas components
- Aerospace & Automotive: Exhaust manifolds, catalytic converter housings
- Waste Incineration: Combustion chambers and ducting
Mechanical & Physical Properties (Typical)
| Property | Value (Approx.) |
|---|---|
| Tensile Strength | 515–700 MPa |
| Yield Strength (0.2% offset) | 205–310 MPa |
| Elongation | ≥40% |
| Density | 7.9 g/cm³ |
| Melting Range | 1,400–1,450°C |
| Thermal Conductivity | ~13 W/m·K (at 100°C) |
| Electrical Resistivity | ~0.78 µΩ·m |
Standards & Specifications
- ASTM A240/A240M: Standard specification for chromium-nickel stainless steel plate, sheet, and strip
- UNS S30908: Unified Numbering System designation
- EN 1.4833 / X12CrNi23-13: European equivalent
- JIS SUS309S: Japanese Industrial Standard
Advantages Over Other Grades
- vs. 304/316: Higher Cr/Ni content offers far better high-temp performance.
- vs. 309: Lower carbon in 309S reduces sensitization risk during welding.
- vs. 310S: Slightly lower cost while still delivering robust performance up to ~980°C.
Considerations for Use
- Not recommended for cryogenic applications due to reduced toughness at very low temperatures.
- Machining requires appropriate tools and coolants due to work-hardening tendency.
- Post-weld annealing is generally not required but may be used for severe service conditions.
Conclusion
Cold-rolled 309S stainless steel sheet is a reliable choice for components operating in high-temperature, oxidizing, or mildly corrosive environments. Its combination of formability, weldability, and thermal stability ensures long service life and operational safety across heavy industries.
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