Contact Platform Support
Help Center409 Stainless Steel Coil 1.2mm Thickness 1219mm Width No.4 Surface for Automotive Exhaust
Product Spotlights
Related Products
-
316L Stainless Steel Coil for Food Processing Equipment 0.6-3.0mm Thickness 2B Surface Corrosion ResistantNegotiableMOQ: 1 Ton -
201 Stainless Steel Coil 2mm Thickness 1000mm Width 2B Surface Industrial GradeNegotiableMOQ: 1 Ton
-
201/304/316 Stainless Steel Coil Technical Support Free Sample 7-15 Days Delivery Cold Rolled 2B SurfaceNegotiableMOQ: 1 Ton
-
316L Stainless Steel Coil 1.5mm Thickness 1500mm Width BA Surface for Corrosion ResistanceNegotiableMOQ: 1 Ton
-
Pharmaceutical Aluminum Foil With Mill Test Report ASTM B209 CompliantNegotiableMOQ: 1 Ton
Hemaokang Steel (Shandong) Co., Ltd. is proud to offer premium 409 Stainless Steel Coil in 1.2mm thickness and 1219mm width with a No.4 brushed surface, specifically engineered for automotive exhaust systems. Our 409 grade provides excellent resistance to high-temperature oxidation and corrosion, making it the preferred choice for mufflers, catalytic converters, and exhaust pipes. With strict quality control from raw material to finished coil, we ensure every order meets the demanding requirements of the automotive industry.
This coil combines precise dimensional tolerances with a uniform No.4 finish that reduces secondary processing costs. The 1.2mm thickness offers optimal balance between strength and formability, while the 1219mm width maximizes material yield for standard exhaust components. Backed by our ISO9001 certified production system and a dedicated export team, we deliver consistent quality with short lead times from Qingdao port.
Key Features & Technical Specifications
- High-Temperature Performance: 409 stainless steel maintains structural integrity up to 675°C (1247°F), ideal for exhaust manifolds and catalytic converters.
- Corrosion Resistance: Excellent resistance to exhaust gas condensate and road salt, with a chromium content of 10.5–11.75%.
- Formability & Weldability: Easily formed, stamped, and welded using standard TIG/MIG processes – reduces fabrication time.
- No.4 Surface Finish: Uniform brushed texture with Ra ≤ 0.4 µm, ready for paint or direct use in visible exhaust components.
- Precise Dimensions: Thickness tolerance ±0.05mm, width tolerance 0/+3mm, tight edge condition for automated processing.
- Annealed Condition: Softened state (≤180 HB) ensures deep drawing and bending without cracking.
- Customizable Lengths: Available in standard coils or slit-to-width strips (min. 30mm) according to your production needs.
| Parameter | Value | Remarks |
|---|---|---|
| Grade | 409 Stainless Steel (UNS S40900) | Equivalent to 1.4512 |
| Thickness | 1.2 mm | Tolerance: ±0.05 mm |
| Width | 1219 mm | Can be slit to custom widths |
| Surface Finish | No.4 (Brushed) | Ra ≤ 0.4 µm |
| Coil Weight | 3 – 8 tons per coil | Customizable |
| Yield Strength | ≥ 205 MPa | Annealed condition |
| Elongation | ≥ 25% | ASTM E8 test |
Why Choose Our 409 Stainless Steel Coil?
- Automotive-Grade Quality: Manufactured under ISO9001 system, every coil undergoes ultrasonic and eddy current testing to ensure zero defects.
- Cost-Effective Alternative: 409 is significantly more affordable than 304 or 316, yet offers sufficient corrosion resistance for exhaust applications.
- Global Shipping Ready: Packed with anti-rust paper, VCI film, and steel skids to survive ocean freight. Free fumigation wooden pallets available.
- Flexible Quantity: Accept trial orders from 5 tons or full container loads (20 ft / 40 ft).
- Technical Support: Our engineers provide processing recommendations (bending, welding, forming) to optimize your production.
At Hemaokang Steel (Shandong) Co., Ltd., we have been serving global markets since 2025 with an annual export value exceeding US$50 million. Our dedicated team of 51–100 professionals ensures every shipment meets the highest standards. With main markets across North America, South America, Europe, Asia, Africa, and Oceania, we have accumulated deep expertise in fulfilling diverse customer requirements. Our ISO9001 certification guarantees consistent quality, and our location in Liaocheng, Shandong gives us convenient access to Qingdao port for fast delivery.
We invite you to experience the reliability of our 409 stainless steel coil. Whether you need a standard 1.2mm x 1219mm No.4 coil or custom dimensions, our sales team is ready to provide a competitive quotation. Contact us today to discuss your automotive exhaust component needs – we are committed to being your long-term steel partner.
Frequently Asked Questions
-
Q: What is the main difference between 409 and 304 stainless steel for exhaust use?
A: 409 is a ferritic grade with lower chromium (10.5–11.75%) and no nickel, making it more cost-effective for high-temperature exhaust applications. 304 offers better general corrosion resistance but is more expensive and less suitable for thermal cycling. 409 is the industry standard for exhaust systems. -
Q: Can this coil be welded easily?
A: Yes, 409 stainless steel has excellent weldability using TIG, MIG, or resistance welding. Preheating is not required for thicknesses under 3mm, but post-weld annealing is recommended for maximum corrosion resistance in severe environments. -
Q: What is the maximum operating temperature of 409 stainless steel?
A: 409 can withstand continuous service temperatures up to 675°C (1247°F) and intermittent exposure up to 815°C (1499°F). It is ideal for exhaust manifolds, downpipes, and mufflers. -
Q: Do you offer slitting services to smaller widths?
A: Yes, we can slit the 1219mm master coil into any width from 30mm to 1219mm with tight tolerances. Minimum slit width is 30mm, and we can also provide cut-to-length sheets. -
Q: How is the coil packaged for export?
A: Each coil is wrapped with anti-rust paper, VCI film, and steel banding, then placed on a fumigation-free wooden pallet. For sea freight, we use waterproof shrink wrap and corner protectors. Full container or LCL shipment is available. -
Q: What is the typical lead time?
A: For standard sizes (1.2mm x 1219mm No.4), stock orders can be shipped within 7–15 days after deposit. Custom sizes or quantities may require 20–30 days. We coordinate with our production team to meet your schedule. -
Q: Do you provide a mill test certificate?
A: Yes, each shipment includes a mill test certificate (MTC) with chemical composition and mechanical properties as per ASTM A240. Third-party inspection (SGS, BV, etc.) is available upon request at an additional cost. -
Q: Can I order a small sample coil for testing?
A: Absolutely. We can supply a trial coil of 1–3 tons to evaluate the material in your production line. Sample orders are subject to standard pricing and shipping terms.
Send Inquiry to This Supplier
You May Also Like
-
Pharmaceutical Aluminum Foil 0.02mm-0.06mm Thickness 8011 Alloy for Blister PackagingNegotiableMOQ: 1 Ton
-
Cold Rolled Pharmaceutical Aluminum Foil 20-60um Width 200mm-1200mm High BarrierNegotiableMOQ: 1 Ton
-
Pharmaceutical Packaging Aluminum Foil 0.035mm Pin Hole Free ≤3/m² StandardNegotiableMOQ: 1 Ton
-
Printing Compatible Pharmaceutical Aluminum Foil 0.025mm Tensile Strength 80MPaNegotiableMOQ: 1 Ton
-
Pharmaceutical Aluminum Foil for PVC Blister Cold Forming Packaging 0.045mmNegotiableMOQ: 1 Ton
-
Pharmaceutical Aluminum Foil With Heat Seal Coating 0.04mm 200m/rollNegotiableMOQ: 1 Ton
-
Child Resistant Pharmaceutical Aluminum Foil for Push Through Blister PacksNegotiableMOQ: 1 Ton
-
Pharmaceutical Grade Aluminum Foil 8011/8079 O Temper 30-50μm Puncture ResistanceNegotiableMOQ: 1 Ton
-
Industrial Pharmaceutical Aluminum Foil 1 Year Warranty Standard Compliant SupplyNegotiableMOQ: 1 Ton
-
Pharmaceutical Aluminum Foil 0.02mm Thickness for Blister Packaging With 0.1mm Pinhole StandardNegotiableMOQ: 1 Ton
