Automotive Exhaust 409 Seamless Stainless Steel Tube High Temperature Resistant
Price:
USD 2200-3400 / Ton
MOQ:
1 Ton
Delivery Time:
7-15 days for stock, 20-30 days for production
Brand:
HANTAI
Product Description
Automotive Exhaust 409 Seamless Stainless Steel Tube High Temperature Resistant
This Automotive Exhaust 409 Seamless Stainless Steel Tube is a cost-effective ferritic grade specifically developed for exhaust systems, mufflers, and catalytic converter components. It provides essential resistance to hot exhaust gas and condensation corrosion, making it ideal for demanding automotive applications.
The 409 grade is stabilized with titanium, which prevents sensitization and intergranular corrosion even in the aggressive condensate that forms at the cold end of exhaust systems. With lower nickel content, it maintains competitive pricing while offering significantly better durability than aluminized or plain carbon steel tubing.
Manufactured through cold drawn seamless process and supplied pickled and annealed, this tube is available in outside diameters from 6 mm to 630 mm and wall thickness from 0.5 mm to 30 mm. The seamless construction eliminates weld seams, enhancing formability during bending and resistance to cracking under vibration and thermal cycling in automotive service.
Technical Specifications
| Parameter | Value |
|---|---|
| Material Grade | 409 / UNS S40900 / EN 1.4512 |
| Standard | ASTM A268 / ASME SA268 |
| Outer Diameter | 6 mm - 630 mm |
| Wall Thickness | 0.5 mm - 30 mm |
| Length | 6 m / 12 m or cut to length |
| Stabilizing Element | Titanium stabilized |
| Surface Finish | Pickled and annealed |
| Manufacturing Process | Cold drawn seamless |
Key Advantages
- Titanium stabilization resists intergranular corrosion in exhaust condensate
- Ferritic 409 grade offers excellent high temperature oxidation resistance at competitive cost
- Seamless body improves formability for bending and flaring during exhaust fabrication
- Readily weldable for muffler and manifold assembly
- Lower nickel content keeps material cost attractive for high volume projects
- Full mill test certificate and traceability for automotive quality requirements
Typical Applications
- Automotive exhaust systems and mufflers
- Catalytic converter housings and pipes
- Motorcycle and small engine exhausts
- Industrial exhaust and flue ducting
- Heat shields and hot gas ducting
Frequently Asked Questions
Why is 409 used for exhaust systems?
409 is a titanium stabilized ferritic stainless steel that resists hot exhaust gas oxidation and condensate corrosion, while its lower nickel content keeps it more economical than austenitic grades.
Is the tube easy to weld and bend?
Yes. The seamless body and ferritic structure make 409 tube readily weldable and formable, which is why it is widely used for mufflers and exhaust fabrication.
What standard does the tube meet?
It is manufactured to ASTM A268 and ASME SA268 for ferritic and martensitic stainless steel tubing, and other specifications can be produced on request.
Can I order custom sizes?
Yes. We supply outside diameters from 6 mm to 630 mm and wall thickness from 0.5 mm to 30 mm. Contact us with your requirement for a quotation.
Every shipment is backed by our experienced export team, who assist with material selection, documentation and logistics to ensure smooth procurement from enquiry to delivery. We welcome OEM and ODM orders and can supply trial quantities for evaluation. Please contact us with your drawing or specification for a quotation, free technical advice and the latest stock list for this corrosion resistant seamless stainless steel pipe range.
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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
TOBO STEEL GROUP CHINA
Location
2F,Building7,Baolong Center,No.689,Xiwang Road,Jiading District,Shanghai,201800,China
Contact Person
Joy Wang