Automotive Grade Exhaust Stainless Steel Coil & Tube – Emission System Grade
Product Overview
Automotive-grade exhaust stainless steel is a specialized high-temperature corrosion-resistant material designed for vehicle exhaust emission systems. Available in ferritic (409L/436L) and austenitic (304L) grades, it delivers excellent high-temperature oxidation resistance, exhaust gas corrosion resistance and weldability. This grade is optimized for exhaust manifolds, mufflers, tailpipes and catalytic converter housings, providing long service life under harsh thermal and corrosive conditions.
Why Choose CNB Automotive Exhaust Steel?
Our automotive exhaust stainless steels are sourced from specialized automotive stainless mills with strict control over titanium stabilization and interstitial element content. Every batch undergoes high-temperature performance verification and weldability testing to ensure reliable exhaust system operation. We supply both coil and finished tube forms with various precision processing options to match different exhaust production setups.
Key Specifications
| Item | Specification |
|---|---|
| Product Name | Automotive Exhaust Stainless Steel Coil & Tube |
| Steel Grade | 409L / 436L / 304L automotive grade |
| Product Form | Coil / welded tube |
| Thickness Range | 0.8mm – 3.0mm |
| Coil Width Range | 100mm – 1250mm |
| Tube OD Range | 10mm – 120mm |
| Surface Condition | Annealed pickled / bright annealed |
| Applicable Standards | Automotive exhaust material standards, ASTM A240 |
| Continuous Service Temp | Up to 650°C (409L) / 800°C (436L) |
| Stabilization | Titanium stabilized for high temperature performance |
Core Advantages
- High temperature resistance: Maintains strength and oxidation resistance at exhaust operating temperatures.
- Exhaust corrosion resistance: Withstands condensate and exhaust gas corrosion.
- Excellent weldability: Optimized for automated high-frequency and TIG tube welding.
- Multiple product forms: Available in coil and finished tube for different production needs.
- Grade selection: Matches corrosion and temperature requirements across all exhaust positions.
Applications
This automotive exhaust stainless steel is widely used for exhaust manifolds, muffler shells, tailpipes, catalytic converter housings, resonator tubes and exhaust system brackets.
Get a Quotation
We supply automotive exhaust stainless steel in coil, tube and fabricated component forms in various grades and sizes. High-temperature test reports and material qualification support are available upon request. Contact our automotive stainless team for a detailed quotation.
