409 409L Titanium Stabilized Ferritic Stainless Steel Sheet 0.4mm-6mm Automotive Exhaust Grade Plate
Price:
USD 1.8-2.8 / kg
MOQ:
1000 kg
Delivery Time:
3-5 working days for stock, 10-18 days for production
Brand:
Hongtu
Product Description
409 409L Ferritic Stainless Steel Sheet 0.4mm-6mm Automotive Exhaust Grade Economical Alloy Plate
409 / 409L Ferritic Stainless Steel Sheet for Automotive Exhaust Applications
409 and 409L are titanium-stabilized ferritic stainless steels containing approximately 11% chromium, engineered as the cost-effective solution for automotive exhaust systems. The controlled titanium addition forms stable carbides, preventing chromium depletion at grain boundaries and improving weldability. As the most widely used stainless steel in automotive manufacturing, 409/409L offers an optimal balance of oxidation resistance, formability, and economy unmatched by any other alloy at this price point.
Key Features
- Cost-Effective Corrosion Resistance: 11% Cr content provides adequate oxidation resistance for exhaust system service up to 675°C
- Titanium Stabilized (409L): Low carbon + Ti addition prevents sensitization and ensures good weld ductility
- Excellent Formability: Ferritic structure allows deep drawing and stretch forming for complex exhaust component shapes
- Thermal Fatigue Resistance: Low thermal expansion and high thermal conductivity vs. austenitic grades
- Stress Corrosion Cracking Immunity: Ferritic structure is virtually immune to chloride SCC, unlike 304/316
- Magnetic Properties: Ferritic structure provides magnetic properties useful for induction cookware components
Chemical Composition (Weight %)
| Element | C | Mn | Si | P | S | Cr | Ni | Ti | N |
|---|---|---|---|---|---|---|---|---|---|
| 409 | ≤0.08 | ≤1.00 | ≤1.00 | ≤0.045 | ≤0.045 | 10.5-11.75 | ≤0.50 | 6*C-0.75 | - |
| 409L | ≤0.03 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 10.5-11.7 | ≤0.50 | 6*(C+N)-0.75 | ≤0.03 |
Mechanical Properties (Annealed, Room Temperature)
| Property | Value |
|---|---|
| Tensile Strength | ≥ 380 MPa |
| Yield Strength (0.2% offset) | ≥ 170 MPa |
| Elongation in 50mm | ≥ 20% |
| Hardness (Rockwell B) | ≤ 88 HRB |
| Density | 7.75 g/cm³ |
| Thermal Expansion (20-100°C) | 10.8 μm/m/°C |
Available Dimensions
| Parameter | Range |
|---|---|
| Thickness | 0.4mm - 6mm |
| Width | 1000mm - 1500mm |
| Length | 2000mm - 3000mm, Coil or Custom |
| Surface Finish | 2B, BA, No.1, 2D |
Applications
- Automotive exhaust manifolds, pipes, and mufflers
- Catalytic converter shells and heat shields
- Exhaust gas recirculation (EGR) components
- Transformer cases and bus bars
- Agricultural equipment and farm machinery parts
- Container and tank components
- Home appliance heating elements and oven liners
Our Advantages
- Automotive Industry Approved: IATF 16949 certified supply chain available upon request for OE and aftermarket customers
- High Volume Capacity: 5,000 tons monthly production ensures reliable supply for large automotive programs
- Economy of Scale Pricing: Lowest cost stainless steel sheet in our portfolio for budget-sensitive applications
- Coil and Sheet Options: Available in slit coil, cut-to-length sheet, and blank formats for your production requirements
- Surface Quality: Consistent 2B/BA surface finish free from sliver, scale, and pitting defects
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Jiangsu Hongtu Metal Technology Co.,Limited
Location
No.118 Beihuan Road, Xishan District, Wuxi City, Jiangsu Province China
Contact Person
Cathy