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Stainless Steel 409 Coil/Slitting Coil is a popular choice in the world of ferritic stainless steel, celebrated for its strength, heat resistance, and affordability. It boasts impressive corrosion resistance against exhaust gases and various atmospheric conditions, making it a go-to material in both automotive and industrial settings. Thanks to its titanium stabilization, Stainless Steel 409 not only enhances weldability but also helps prevent intergranular corrosion, which is a big plus during fabrication. With its solid thermal conductivity, oxidation resistance, and structural integrity, it delivers dependable performance even in high-temperature situations. These coils come in precise slitting dimensions, catering to a wide range of industrial needs while ensuring longevity, versatility, and efficiency in demanding applications.
The composition of Stainless Steel 409 Coil/Slitting Coil primarily includes iron, chromium (10.5–11.7%), and titanium, along with trace amounts of nickel, carbon, and manganese. The addition of titanium significantly boosts corrosion resistance and weldability. Its ferritic structure not only provides good formability but also maintains high-temperature stability, resisting scaling up to 675°C (1250°F). In terms of mechanical properties, it offers a tensile strength of around 380–450 MPa and a yield strength of about 170–240 MPa, along with excellent elongation and toughness. These well-balanced characteristics make Stainless Steel 409 coils ideal for forming, fabrication, and structural applications, all while ensuring durability in tough operating conditions.
| Standard | ASTM A240, ASME SA240 |
| Thickness | 0.1mm to 12 mm Thk |
| Coil Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm etc. |
| Coil Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm etc. |
| Surface | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sandblast, Brush, etching. |
| Finish | Hot rolled (HR), Cold rolled (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated), Galvanized etc. |
| Grade | C | Ni | Si | S | Mn | P | Cr | Ti |
| SS 409 | 0.08 max | 0.5 max | 1.00 max | 0.045 max | 1.00 max | 0.045max | 10.5 – 11.75 | 6x C – 0.75 |
| Tensile Strength(MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Rockwell B (HRB) max | Brinell (HB) max |
| 450 | 240 | 25 | 75 | 131 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Stainless Steel 409 Coils and Slitting Coils offer excellent corrosion resistance, particularly in moderately corrosive environments like automotive exhaust systems and industrial applications. They are highly heat-resistant, performing well at elevated temperatures without compromising structural integrity. The low carbon content ensures good weldability and prevents carbide precipitation during welding. With a tensile strength of approximately 450 MPa and good formability, these coils are versatile and durable. Their affordability, combined with superior resistance to oxidation, makes them an ideal choice for cost-effective solutions in applications requiring corrosion and heat resistance.
Yes, we offer custom sizes for Stainless Steel 409 Coils to meet specific project needs. Our team at Yunus Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
| Grade | WERKSTOFF NR. | AISI | UNS | AFNOR | BS | GOST | JIS |
| SS 409 | 1.4512 | 409 | S40900 | Z3CT12 | 409 S 19 | SUH 409 | – |
Industries that require corrosion resistance and thermal stability extensively use Stainless Steel 409 Coil/Slitting Coil. In the automotive field, it’s commonly found in exhaust systems, mufflers, catalytic converter housings, and heat shields, thanks to its ability to endure high temperatures. In construction and architecture, it’s utilized for roofing, cladding, and structural reinforcements. Industrial applications also include heat exchangers, furnace components, and processing equipment that are exposed to heat and oxidizing environments. Its versatility truly shines across various sectors, making it a reliable choice for many demanding applications.
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