409 stainless steel exhaust tubing is manufactured from titanium-stabilized ferritic stainless steel, offering dependable heat resistance and solid durability for automotive, industrial, and marine exhaust systems. With clean surfaces, accurate dimensions, and good formability, the tubing performs reliably in both OEM production and custom fabrication projects.
| Category | Details |
|---|---|
| Material | 409 Stainless Steel (Ti-stabilized ferritic grade) |
| Thickness | 1.0 mm – 3.0 mm |
| Diameter | 1.5″ – 6″ (custom sizes available) |
| Length | 1 m – 6 m (custom lengths available) |
| Surface Finish | Polished / Brushed / Matte |
The table below outlines the key elements in
| Cr | 10.5 – 11.7 |
| Ni | ≤ 0.5 |
| C | ≤ 0.08 |
| Mn | ≤ 1.0 |
| Si | ≤ 1.0 |
| P | ≤ 0.045 |
| S | ≤ 0.045 |
| Ti | 6xC – 0.75 |
| Fe | Balance |
The mechanical properties of
| Tensile Strength | 380 – 550 MPa |
| Yield Strength (0.2% offset) | 170 – 240 MPa |
| Elongation (in 50mm) | ≥ 20% |
| Hardness (Rockwell B) | 70 – 85 HRB |
| Impact Strength | ≥ 27 J |
The physical properties of
| Density | 7.75 g/cm³ |
| Melting Point | 1425 – 1510°C (2597 – 2750°F) |
| Thermal Conductivity | 24.9 W/m·K |
| Electrical Resistivity | 0.60 µΩ·m |
| Magnetic Permeability | Ferromagnetic |
| Thermal Expansion Coefficient (20-100°C) | 11.2 x 10⁻⁶ /°C |
409 stainless steel offers an excellent balance of heat resistance, oxidation protection, and cost-efficiency. Its weldability and formability make it suitable for bending, flaring, and mandrel processing. This tubing is widely used in automotive exhaust systems, motorcycle pipes, industrial engines, generators, and marine discharge lines.
We provide stable quality, flexible sizing options, and fast delivery from a reliable manufacturing and export facility. OEM customization and bulk production are supported for global customers.
Reach out to get pricing, stock availability, and custom production options for 409 stainless steel exhaust pipes.
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