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Wuxi Yansheng Technology Co., Ltd., a professional manufacturer established in 2017 with a factory size of 1,000–3,000 square meters and over 100 skilled employees, presents our High Temperature Equipment Cold Rolled Pickled Surface ASTM 409 Stainless Steel Sheet. This product is engineered to meet the rigorous demands of high-temperature applications, offering exceptional oxidation resistance and structural stability. Our cold rolled pickled surface ensures a smooth, clean finish that enhances both performance and aesthetics, making it an ideal choice for heat exchangers, boilers, exhaust systems, and other thermal equipment. With annual export values exceeding US$50 million, we deliver consistent quality that international buyers trust.
The ASTM 409 stainless steel sheet is a ferritic stainless steel grade known for its good corrosion resistance and excellent heat resistance up to 815°C (1500°F). The cold rolling and pickling process removes scale and impurities, resulting in a uniform surface that facilitates further fabrication such as bending, welding, or forming. Below are the key technical specifications and dimensions:
| Grade | ASTM 409 (UNS S40900) |
| Surface Finish | Cold Rolled Pickled (2B / BA) |
| Thickness Range | 0.5 mm – 3.0 mm (custom sizes available) |
| Width Range | 1000 mm – 1500 mm |
| Length Range | 2000 mm – 6000 mm |
| Tensile Strength | ≥ 380 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 20% |
Product Features & Benefits:
Excellent High-Temperature Performance: Retains strength and oxidation resistance at elevated temperatures, suitable for continuous service up to 815°C.
Cold Rolled Pickled Surface: Provides a smooth, scale-free finish that simplifies welding and coating, reducing post-processing time.
Good Corrosion Resistance: Resists atmospheric corrosion and mild chemical environments, extending service life in exhaust and heat recovery systems.
Cost-Effective Alternative: Compared to austenitic grades like 304 or 316, 409 offers lower cost while delivering adequate performance for many high-temperature applications.
Excellent Formability & Weldability: Can be easily cut, bent, stamped, and welded without cracking, enabling complex part fabrication.
Customizable Dimensions: Thickness, width, and length can be tailored to specific project requirements, minimizing waste and reducing material costs.
Compliance with ASTM Standards: Manufactured in accordance with ASTM A240 and ASTM 409, ensuring consistent quality and traceability.
Ideal Applications: This stainless steel sheet is widely used in high-temperature equipment such as automotive exhaust systems, heat exchangers, furnace components, boiler shells, and industrial ovens. Its combination of heat resistance and formability makes it a preferred material for OEMs and fabricators in the energy, automotive, and heavy machinery sectors.
Quality Assurance & Trust: At Wuxi Yansheng Technology Co., Ltd., we adhere to rigorous quality management systems. Our facility is certified under ISO9001, ISO14000, OHSAS18001, and other international standards, reflecting our commitment to excellence. With an annual export value of US$50–100 million and a dedicated team of 101–200 employees, we supply stainless steel sheets to markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our products are shipped from major ports including Tianjin, Shanghai, Qingdao, and Ningbo, ensuring timely delivery worldwide.
We invite you to experience the reliability and performance of our ASTM 409 cold rolled pickled stainless steel sheet. Whether you need standard sizes or custom specifications, our team is ready to provide competitive pricing and technical support. Contact us today for a quote or sample to see the difference firsthand.
Frequently Asked Questions
What is the maximum temperature this sheet can withstand?
ASTM 409 stainless steel offers good oxidation resistance up to 815°C (1500°F) in continuous service. For intermittent exposure, it can handle slightly higher temperatures.Is the cold rolled pickled surface suitable for painting or coating?
Yes, the smooth, pickled surface provides excellent adhesion for paints, powder coatings, or other finishes, and it also facilitates welding without extensive pre-cleaning.Can you supply custom sizes or cut-to-length sheets?
Absolutely. We offer thicknesses from 0.5mm to 3.0mm, widths from 1000mm to 1500mm, and lengths up to 6000mm. Custom dimensions are available upon request.What is the typical lead time for an order?
For standard sizes, lead time is approximately 15–25 days after order confirmation. Custom sizes may require 20–30 days, depending on quantity and complexity.Do you provide material test certificates or third-party inspection?
Yes, we can provide mill test certificates (MTC) complying with ASTM standards. Third-party inspection (e.g., SGS, BV) is also available at an additional cost.Is this grade magnetic?
Yes, ASTM 409 is a ferritic stainless steel, which is magnetic. This property is beneficial for certain applications like magnetic clamping or sensor mounting.How does 409 compare to 304 in high-temperature applications?
409 has better oxidation resistance at high temperatures but lower corrosion resistance compared to 304. It is a more economical choice for exhaust systems and heat exchangers where 304 is not required.What packaging do you use for export?
Sheets are packed in bundles with waterproof paper, steel strapping, and protective corners to prevent damage during transit. Sea-worthy wooden crates or pallets are used for air freight or small orders.
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