Are you sourcing 409L stainless steel cold-rolled coils for automotive applications but still facing issues like uneven thickness, poor formability, or unstable surface quality during mass production? The real difference lies in processing stability, dimensional accuracy, and material consistency.
GNEE, with over 18 years of experience in stainless steel coil supply, has delivered high-quality materials to more than 50 countries and regions, with annual exports exceeding 2,000 tons. We ensure full material traceability and consistent quality across every batch, making us a reliable partner for automotive manufacturers.
We clearly understand that the biggest risk with 409L coils is batch inconsistency. If elongation is insufficient, cracking will occur during bending; if titanium (Ti) content is unstable, it may lead to weak welds and corrosion at the joints, potentially shutting down entire production lines. That's why we strictly control Ti content at ≥6×(C+N) and maintain elongation ≥25%, ensuring stable mechanical properties and making our material ideal for stamping, bending, and welding without cracking.
Regarding thickness precision, we strictly control tolerances within the range of ±0.02 to ±0.03 mm, ensuring uniform and consistent thickness throughout the entire coil while keeping burr levels to an absolute minimum. Our 409L coils are available with 2B or BA surface finishes; surface roughness is typically controlled to Ra ≤ 0.5–0.8 μm, and the material is entirely free of scratches, rolling marks, or oxidation defects.
We have long-term supply experience with exhaust manifold manufacturers, and fully understand the performance requirements of 409L under high-temperature conditions. Our materials demonstrate reliable oxidation resistance at temperatures up to 800°C, and we can provide third-party high-temperature test reports to support your application needs.
409L Stainless Steel Coil/Stainless Steel Strip Specifications
| TEM | 409L Stainless Steel Coil/Stainless Steel Strip |
| Grade | 409,409L,410S,420, 430, 431,904L,2205,2507 |
| Thickness | Cold rolled 0.3 to 3mm |
| Hot rolled 3mm to 60mm or as customer's request | |
| Standard | JIS, AISI, ASTM, GB, DIN, EN, etc. |
| Width | 1000mm,1219mm,1500mm,1800mm,2000mm or as customer's needs |
| Length | 2000mm-6000mm or as customer request |
| Finish | 2B, 2D, BA, MIRROR(8K), NO.1,NO.4, HL (Hair line),Embossed |
| Certification | SGS,BV,IQI,TUV,ISO,etc |
| Surface Treatment | Polishing, Annealing, Pickling, Bright, or as required |
| Thickness Tolerance | ±0.05mm, or as required |
| Package | Standard export seaworthy package . Water proof paper+Metal pallet+Angle bar protection+Steel belt or as required. |
| Price Term | T/T |
| Delivery Time | Prompt delivery 7-15 days after deposit or as order quantity. |
| MOQ | 3 ton , sample or trial order acceptable |
| Sample | Free provided, courier fee by the buyer's side. |
| Application | Stainless coil is commonly used in kitchen equipment, furnace parts, heat exchangers and decorative applications, etc |
Grade 409L Stainless Steel Equivalents
| Standard | Grade | UNS | EN / DIN | JIS |
| ASTM A240 | 409L | S40903 | 1.4512 | SUH409L |
Chemical Composition (Typical Weight %)
| Element | Carbon (C) | Manganese (Mn) | Silicon (Si) | Chromium (Cr) | Nickel (Ni) | Titanium (Ti) | P / S |
| Value (%) | ≤ 0.030 | ≤ 1.00 | ≤ 1.00 | 10.50 - 11.75 | ≤ 0.50 | 6x(C+N) to 0.75 | P≤0.040, S≤0.030 |
Note: Titanium (Ti) is added as a stabilizer to prevent sensitization and intergranular corrosion during welding.
Mechanical Properties (at Room Temperature)
| Property | Value (Metric) | Value (Imperial) |
| Tensile Strength (Rm) | ≥ 380 MPa | ≥ 55 ksi |
| Yield Strength (Rp 0.2) | ≥ 175 MPa | ≥ 25 ksi |
| Elongation (A50mm) | ≥ 20% | ≥ 20% |
| Hardness (Rockwell B) | ≤ 75 HRB | ≤ 75 HRB |
| Hardness (Brinell) | ≤ 175 HBW | ≤ 175 HBW |
409 vs. 409L Stainless Steel: Which Is Better Suited for the Automotive Industry?
409L stainless steel is generally better suited for the modern automotive industry, particularly for exhaust systems, because its lower carbon content provides superior weldability and reduced risk of corrosion at weld joints compared to standard 409. While both are cost-effective, heat-resistant ferritic steels, 409L offers better structural integrity in high-temperature applications.
409L stainless steel coil price per ton
As of early 2026, 409L stainless steel coil prices generally range between USD 1,000 and USD 1,800 per ton, heavily influenced by the specific, grade, thickness, surface finish, and order volume. Cold-rolled coils often fall at the higher end, while hot-rolled options are more cost-effective.
If you have project-specific requirements for 409 or 409L stainless steel coils, we welcome your orders. GNEE maintains a substantial inventory of best-selling products for you to choose from; for detailed chemical compositions or free samples, please contact our factory immediately. We offer competitive pricing and exceptional service.
Click to Get 409L Stainless Steel Coil Prices
Packaging and Shipping
Packaging: Each plate or coil is wrapped in moisture-proof paper, lined with plastic film, and secured with steel strapping. The outer layer is protected by wooden pallets or wooden crates to ensure safety during international transit.
Labeling: Each package includes information regarding the heat number, grade, dimensions, and applicable standards.
Delivery Time: Typically within 7–15 business days after receipt of the advance payment.
Shipping Methods: Sea freight (FCL/LCL), air freight, or express delivery, depending on customer requirements.
