Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of 409 stainless steel coil in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
409 Stainless Steel Coil, also known as UNS S40900 Ferritic Stainless Steel Coil, is a cost-effective, high-performance ferritic stainless steel primarily used in automotive exhaust systems, industrial equipment, and decorative architectural panels. With excellent corrosion resistance, high heat resistance (up to 600°C), and good formability, 409 stainless steel provides an economical solution for large-scale manufacturing projects. We supply cold-rolled and hot-rolled 409 coils, in thickness 0.3–3.0 mm, width 500–1500 mm, with optional surface finishes (2B, No.4, BA) and precise slit coil services for OEM and construction applications.
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High Quality
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Advanced Equipment
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Professional Team
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Custom Service
Products Description
409 stainless steel coil is a type of ferritic stainless steel that offers good corrosion resistance and high-temperature resistance. It contains a minimum of 10.5% chromium, which makes it highly resistant to oxidation and corrosion in most environments. It is also magnetic and has good weldability, making it a popular choice for automotive exhaust systems, heat exchangers, and other applications that require good corrosion resistance and high-temperature performance.
Quality Control:
At our factory, we take quality control seriously. Our steel coils undergo rigorous testing to ensure that they meet the highest standards. We have a team of experienced quality control technicians who inspect each coil before it is shipped to the customer.
Conclusion:
In conclusion, our steel coil is a high-quality product that is suitable for use in various industries. It is corrosion-resistant, heat-resistant, durable, and versatile, making it an ideal choice for a range of applications. We are committed to providing our customers with the highest quality products and excellent customer service.
Introducing our steel coil, a high-quality product manufactured using the latest technology and premium materials. Our coil is highly corrosion-resistant and heat-resistant, making it suitable for use in various harsh environments.
The steel coil comes in various sizes and thicknesses, allowing for flexibility in its applications. Its durability ensures that it can withstand regular wear and tear, making it a reliable and cost-effective option for various industries.
Our steel coil is widely used in the automotive, construction, and manufacturing industries. It is commonly used in exhaust systems, mufflers, and other automotive components. Additionally, it is used in building materials such as roofing, siding, and structural components. It is also used in manufacturing equipment and machinery.
At our factory, we take quality control seriously. Our coils undergo rigorous testing to ensure that they meet the highest standards. We have a team of experienced quality control technicians who inspect each coil before it is shipped to the customer.
Choose our stainless steel coil for its excellent corrosion resistance, heat resistance, and durability, and trust us for exceptional customer service and on-time delivery.
Products Specifications
| Category | Material Grade | Thickness Range (mm) | Width Range (mm) | Surface Finish | Typical Applications |
|---|---|---|---|---|---|
| Standard Coil | 409 | 0.3 – 1.5 | 500 – 1500 | 2B | Automotive exhaust systems, industrial ductwork |
| High-Temperature Coil | 409 | 0.5 – 2.0 | 500 – 1200 | 2B / BA | Mufflers, heat exchangers, furnaces |
| Decorative / Brushed Coil | 409 | 0.4 – 1.2 | 500 – 1200 | No.4 Brushed | Architectural panels, interior cladding |
| Slit Coil | 409 | 0.3 – 1.5 | 10 – 500 | 2B / No.4 | Custom-width strips for automotive, appliance components |
| Deep Drawing Coil | 409 | 0.3 – 0.8 | 500 – 1000 | 2B / BA | Formed components, industrial equipment |
| Wide Coil | 409 | 1.0 – 3.0 | 1200 – 1500 | 2B | Large-scale industrial panels, HVAC ducting |
409 vs 430 vs 304 Stainless Steel Coil
| Property | 409 Stainless Steel | 430 Stainless Steel | 304 Stainless Steel |
|---|---|---|---|
| Type | Ferritic, Ti-stabilized | Ferritic | Austenitic |
| Material Grade | UNS S40900 | UNS S43000 | UNS S30400 |
| Corrosion Resistance | Moderate, best for mild environments and automotive exhaust | Low to moderate, indoor use preferred | Excellent, suitable for outdoor & harsh environments |
| Heat Resistance | Up to 600°C (continuous) | Up to 425°C | Up to 870°C |
| Formability / Fabrication | Good, weldable, deep drawing limited above 1.5 mm | Good, easier to bend than 409 | Excellent, highly ductile, weldable, deep drawing suitable |
| Mechanical Properties | Tensile 450–550 MPa, Yield ≥205 MPa, Elongation ≥22% | Tensile 450–550 MPa, Yield ≥205 MPa, Elongation 18–22% | Tensile 520–750 MPa, Yield ≥205 MPa, Elongation ≥40% |
| Surface Finishes | 2B, BA, No.4 | 2B, BA, No.4 | 2B, BA, No.4, #8 Mirror, PVD Gold / Colored |
| Titanium Stabilized | Yes | No | No |
| Magnetic | Yes | Yes | Non-magnetic |
| Typical Applications | Automotive exhaust, industrial ductwork, HVAC, machinery | Home appliances, decorative panels, interior cladding | Architectural panels, kitchen equipment, elevators, chemical industry |
| Cost | Low (most economical ferritic option) | Low to moderate | Higher (premium austenitic stainless) |
| Availability | Cold-rolled / Hot-rolled coils, slit coils | Cold-rolled / Hot-rolled coils, strips | Cold-rolled / Hot-rolled coils, mirror finish sheets, strips |
409: Best choice for automotive exhaust, heat-resistant components, cost-effective.
430: Best for magnetic appliance panels, moderate indoor corrosion resistance.
304: Premium choice for high corrosion resistance and decorative projects, suitable for both indoor and outdoor applications.
Coil width, thickness, edge options, and surface finishes can be customized per project.
Products applications
- Automotive exhaust systems
- Heat exchangers
- Industrial mufflers
- Catalytic converters
- Fuel filters
- Chemical processing equipment
- Furnace parts
- Food processing equipment
- Heat-resistant containers
Products advantages
- Good corrosion resistance
- High-temperature resistance
- Magnetic
- Good weldability
- Cost-effective compared to other stainless steels
- Easy to fabricate and form
Products packaging
Packaging:
Standard seaworthy packaging or as per customer's request
Delivery time:
Within 15-30 days after receiving deposit or L/C
Inspection & Quality Assurance
100% surface inspection for scratches, pits, and contamination
Dimensional and thickness verification
Coil flatness & edge check
Chemical composition and mechanical property verification
Packaging inspection for export stability
Optional third-party inspection for large projects
For pricing, samples, technical datasheets, or project support, contact our sales team:
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
Products fAQ
1. What is the difference between 409 and 430 stainless steel?
409: Ferritic, titanium-stabilized, better high-temperature performance, used in exhausts.
430: General ferritic, lower temperature resistance, mostly decorative or appliance panels.
2. Is 409 stainless steel suitable for outdoor use?
Yes, in mild environments. For harsh or coastal conditions, 304/316 is recommended.
3. Can 409 coils be welded?
Yes. Titanium stabilization prevents intergranular corrosion during welding.
4. What surface finishes are available?
2B, No.4 brushed, BA bright annealed, or custom finishes.
5. What is the maximum operating temperature?
Continuous service up to 600°C / 1112°F.
6. Can 409 stainless steel coil be cut or slit?
Yes. We offer slit coils, cut-to-length sheets, and custom coil services.
7. What is the minimum order quantity (MOQ)?
Typically 1 ton, but sample coils or small quantities can be provided.
8. Does the titanium stabilization affect forming?
No, 409 remains highly formable and bendable for sheet and strip applications.
9. How is 409 stainless steel coil packaged for export?
Standard export packaging includes: PE protective film, waterproof wrapping, edge protectors, and reinforced wooden pallets.
10. Can you supply certification and test reports?
Yes. We provide: MTC (EN 10204 3.1), chemical composition, mechanical properties, and third-party inspection reports (SGS, BV, Intertek).
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