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Premium 309S Cold Rolled Stainless Steel Sheet / Plate / Coil Excellent Oxidation Resistance up to 1000°C
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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
Premium 309S Cold Rolled Stainless Steel Sheet / Plate / Coil Excellent Oxidation Resistance up to 1000°C
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 |
The Premium 309S Cold Rolled Stainless Steel Sheet/Plate/Coil is a high-alloy austenitic stainless steel specifically engineered for excellent oxidation resistance at elevated temperatures—up to 1000°C (1832°F). Here’s a detailed overview of its key features and applications:
Key Characteristics of 309S Stainless Steel:
- Grade Type: Austenitic stainless steel
- UNS Number: S30908
- Low Carbon Variant: The "S" in 309S denotes lower carbon content (≤0.020%) compared to standard 309, which minimizes carbide precipitation during welding and improves weldability and high-temperature performance.
- High Chromium & Nickel Content:
- Cr: ~22–24%
- Ni: ~12–15%
→ Enhances oxidation and corrosion resistance, especially in high-heat environments.
Advantages:
- Outstanding Oxidation Resistance: Stable and protective oxide layer forms at temperatures up to 1000°C, making it ideal for continuous high-temp service.
- Good Sulfidation Resistance: Performs well in sulfur-containing atmospheres.
- Excellent Creep Strength: Maintains mechanical integrity under prolonged thermal stress.
- Weldability: Low carbon content reduces risk of intergranular corrosion after welding.
- Cold Rolled Finish: Offers superior surface finish, dimensional accuracy, and mechanical properties compared to hot-rolled products.
Common Applications:
- Furnace components (muffles, retorts, radiant tubes)
- Heat exchangers and recuperators
- Exhaust systems and manifolds
- Thermal processing equipment
- Petrochemical and power generation industries
Available Forms:
- Sheet: Thin gauges, typically <6 mm
- Plate: Thicker sections, >6 mm
- Coil: Continuous rolled form for fabrication or further processing
Limitations:
- Not recommended for use in strongly reducing acids (e.g., sulfuric acid).
- Lower strength than some heat-resistant alloys (e.g., Inconel) above 1000°C.
- Susceptible to sigma phase embrittlement if held long-term between 600–900°C.
If you're sourcing or specifying 309S cold-rolled stainless steel, ensure compliance with standards such as ASTM A240/A240M (for plate/sheet/coil) and verify mill test reports for chemistry and mechanical properties.
Let me know if you need technical data sheets, equivalent grades (e.g., EN 1.4833, JIS SUS309S), or supplier recommendations!
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