309S Stainless Steel Strip
Our stainless steel strips are precision-cold-rolled from 200/300/400 series alloys, offering excellent corrosion resistance, high strength, and superior surface finishes (No.1/2B/BA/HL). Available in customized thickness (0.02-4.0mm), width (3.5-2000mm), and hardness states (Annealed/Tempered). Ideal for automotive, construction, medical, and food processing applications. Compliant with ASTM, EN, JIS standards.
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309 stainless steel is an austenitic stainless steel containing higher chromium and nickel content.   309 stainless steel has excellent corrosion resistance in various corrosive media, including acid, alkali, salt and other solutions, as well as organic solvents.   It can still maintain good corrosion resistance at high temperatures.   Moreover, it has good high-temperature strength and creep properties and can work stably for a long time in high-temperature environments.   It is suitable for high-temperature equipment in aviation, chemical industry and other fields.   309 stainless steel can be formed and welded through various processing methods and has good processing performance.   Lastly, 309 stainless steel is non-magnetic and suitable for manufacturing parts and components without magnetic requirements.


Product Name309S Stainless Steel Strip
StandardASTM、AISI、GB、DIN、JIS、EN
Material201、202、303、304、304L、309S、310、310S、314、316、316L、630、840、904L and so on
TechnologyCold rolled、hot rolled
Width3.5-2000mm
Thickness0.02-4mm
Surface FinishBA、2B、No.1、No.3、NO.4、8K、HL


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详情标题1-产品详情 拷贝


Each coil undergoes refined hot-rolling or cold-rolling processes based on application needs. Hot-rolled coils deliver superior strength and are suitable for heavy-duty structural components, while cold-rolled coils offer a smoother surface finish and tighter dimensional control—perfect for products requiring aesthetic appeal, such as decorative panels or electronic enclosures.

Surface treatments are tailored to enhance both functionality and appearance:

2B Finish: A smooth, matte surface ideal for general fabrication and painting.

BA Finish: A bright, reflective surface often used in appliances and visible architectural elements.

No.4 Finish: A brushed surface that reduces fingerprint visibility, making it popular for kitchen countertops and medical equipment.


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Our stainless steel coils are manufactured through advanced hot and cold rolling processes to meet diverse industrial requirements. The hot rolling process utilizes controlled heating and multi-pass rolling technology to form coils with uniform microstructure and excellent mechanical properties, providing an ideal solution for applications requiring higher thickness tolerance and structural strength. This is complemented by our fully automated cold rolling mills and protective atmosphere annealing processes, equipped with laser thickness gauges (thickness tolerance ±0.01mm) and online surface defect detection systems to ensure dimensional precision and surface quality meeting 2B/BA/No.4 standards.

The integrated production line includes 20-roll reversible rolling mills, hydrogen bright annealing lines (temperature accuracy ±3°C), and fully automatic coiling equipment. Compliant with international standards such as ASTM A240 and EN 10088, we support customization of various specifications, special materials, and differentiated surface treatments. Our products are widely used in new energy vehicles, home appliance manufacturing, precision electronics industries, and other fields requiring both structural components and precision materials.


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详情标题3-产品检测 拷贝


In order to ensure product quality, we will arrange professional personnel to check product quality, packaging, weight, hardness, etc., according to customer requirements of product specifications, looking for high-quality and cheap cooperative factories in China, to provide customers with one-stop procurement services and quality assurance.


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Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation. Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.


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