309s is a chromium-nickel austenitic stainless steel grades that are commonly used in high-temperature environments.Due to its high chromium and nickel content, 309s stainless steel has superior resistance to oxidation and corrosion in challenging environments. The high chromium content also contributes to its excellent resistance to sulfidation and other aggressive chemical reactions, making it an ideal choice for applications in elevated temperature atmospheres.
309S is the low carbon version of the alloy 309,309S has a much less carbon composition which minimizes carbide precipitation and improves weldability.

309S Stainless Steel Plate Specification
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Items |
Stainless Steel Sheet/Stainless Steel Plate |
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Standard |
AISI ,ASTM, DIN, JIS, GB, JIS, SUS,EN, etc |
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Technique |
Hot rolled/Cold rolled |
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Length |
4m-12m or as required |
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Width |
0.6m-3m or as required |
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Thickness |
0.1mm-300mm or as required |
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Surface Treatment |
Clean blasting and painting according to customer requirement |
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Export Packing |
Waterproof Paper, Steel Strip Packed and other Standard Export Seaworthy Package, or customized package |
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Supply Ability |
5000 Ton/Tons per Month |
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Certification |
CE, ISO, SGS, BV |
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309s Stainless Steel Chemical Composition
| Element | 309S |
| Chromium | 22.0 min.-24.0 max. |
| Nickel | 12.0 min.-15.0 max. |
| Carbon | 0.08 |
| Manganese | 2.00 |
| Phosphorus | 0.045 |
| Sulfer | 0.030 |
| Silicon | 0.75 |
| Iron | Balance |
309S Stainless Steel Mechanical Properties
| Type | Mechanical Properties for 309S Stainless Steel Plates, Stainless Steel Sheet | |||||||
| ASTM | Others(JIS) | Tensile Properties | Hardness | |||||
| Yield Strength (Mpa) | Tensile Strength (Mpa) | Elongation (%) | HBW | HRBW | ||||
| Austenitic Steels | ||||||||
| 309S | SUS309S | ≥205 | ≥515 | ≥40 | ≤217 | ≤95 | ||
AISI 309S Physical Properties
| Properties | Metric | Imperial |
| Density | 8 g/cm3 | 0.289 lb/in³ |
| Melting point | 1454°C | 2650°F |
309s Stainless Steel Sheet Surface Finish
309s Stainless Steel sheet is available in various surface finishes, including 2B (cold-rolled, annealed, and pickled), No. 4 (brushed finish), and others, depending on the specific requirements of the application.

Stainless Steel Plate FAQ
Q: Are you trading company or manufacturer?
A: We are factory.
Q: Do you provide samples? is it free or extra?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: Can you OEM or ODM?
A: Yes, we have a strong development team. Stainless Steel Plate Products can be produced according to your requirements.
Q:What port you mainly export?
A: Export from Tianjin/Qingdao/Shanghai port,any port in China is available.
Q:How's the package?
A:Standard export sea-worthy packaging, the inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion and various climate changes during ocean transportation.

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