Products Description
Our Advantages
1. Corrosion Resistance
- Our Stainless Steel Oval Exhaust Tubing is made of high-quality stainless steel, exhibiting strong resistance to road salt, moisture, condensed acid, and exhaust gases.
- Compared to carbon steel, aluminized products offer a longer service life and undergo rigorous chemical composition testing and various corrosion resistance tests to ensure compliance with EN 10296-2 standards.
2. High Temperature Resistance
- Our exhaust pipes exhibit excellent high-temperature resistance, capable of long-term stable operation in high-temperature environments ranging from 400 to 800 ℃, such as engine exhaust, turbine inlet, and three-way catalytic converter areas.
- Our pipes are manufactured using precision roll forming, which results in uniform wall thickness, reduces localized stress concentration, and enhances their resistance to thermal fatigue.
3. Weld Quality
- Our Stainless Steel Oval Exhaust Tubing is manufactured using a fully automated precision welding process, ensuring smooth welds free of undercut and porosity.
- The pipes undergo eddy current testing, air pressure testing, and tensile testing to ensure the weld quality meets EN 10296-2 standards.
4. Excellent Formability
- Our stainless steel pipes undergo rigorous solution annealing and bright annealing treatments, resulting in a uniform metallographic structure and low residual stress. This provides excellent cold forming performance, making them suitable for complex processing such as bending, flaring, and flattening of automotive exhaust pipes.
- The pipes undergo metallographic testing and mechanical property testing to ensure they are not prone to cracking or wrinkling during the forming process, meeting the complex spatial layout requirements of automotive chassis.
5. Customized Services
- TORICH offers flexible customization services, providing various cross-sectional specifications such as elliptical, flat elliptical, and flattened elliptical shapes. We support non-standard customization services for dimensions and materials.
- We can provide surface treatment processes such as pickling and passivation, bright annealing, wire drawing, and polishing according to customer needs, meeting diverse appearance requirements.
application areas
- Car exhaust mid-section pipe
- Car exhaust tailpipe
- Passenger cars and SUVs
- Sports cars and high-performance vehicles
- Original factory exhaust system
- Aftermarket exhaust system
Chemical Composition
| Element | C | Mn | Si | Cr | Ni | N |
|---|---|---|---|---|---|---|
| X2CrNi12 | ≤0.03 | ≤1.50 | ≤1.00 | 11.0–13.0 | ≤1.00 | - |
| X2CrNiN18-7 | ≤0.03 | ≤2.00 | ≤1.00 | 17.0–19.0 | 6.0–8.0 | 0.10–0.25 |
| X5CrNi18-10 | ≤0.07 | ≤2.00 | ≤1.00 | 17.5–19.5 | 8.0–10.5 | - |
Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength 0.2% (MPa) | Elongation (%) |
| X2CrNi12 | ≥380 | ≥200 | ≥20 |
| X2CrNiN18-7 | ≥550 | ≥250 | ≥35 |
| X5CrNi18-10 | ≥520 | ≥210 | ≥40 |
Possible Alternative Grades
| Alternative Grades | Reasons |
| AISI 409/439 | Highly economical, with good heat resistance and acceptable corrosion resistance, suitable for standard automotive environments. |
| AISI 304/321 | Suitable for applications requiring enhanced corrosion resistance, processability, and high-temperature stability, especially in the aftermarket and high-performance exhaust systems. |
| X15CrNiSi20-12 | Exhibits excellent oxidation resistance in high-temperature exhaust environments, suitable for high-performance, turbocharged, or heavy-duty exhaust systems. |
Products Show
Testing Equipment
Factory Equipment
Pickling equipment
Products Package
FAQ
Q: How is the weld quality? Will it crack under high temperature and vibration?
A: Our welds utilize fully automated precision welding technology, resulting in a small heat-affected zone. The weld performance is consistent with the base material, and it undergoes eddy current testing and airtightness testing, making it less prone to cracking under the high temperature and high vibration conditions of automotive applications.
Q: What is the lead time for your custom exhaust pipes?
A: The lead time depends on the complexity and quantity of the order. Typically, the lead time for custom orders is 4 to 8 weeks, including production, testing, and quality assurance. We can also provide expedited service for urgent needs based on current production capacity.
Q: What is the dimensional accuracy you can achieve?
A: We use a precision rolling process, with strict control over the tolerances of the long axis, short axis, and wall thickness. The outer diameter is controlled within ±0.05mm, and the wall thickness tolerance within ±0.1mm.
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