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Automotive Exhaust 409 Seamless Stainless Steel Tube High Temperature Resistant
Automotive Exhaust 409 Seamless Stainless Steel Tube High Temperature Resistant
Automotive Exhaust 409 Seamless Stainless Steel Tube High Temperature Resistant
Automotive Exhaust 409 Seamless Stainless Steel Tube High Temperature Resistant
Specifications
Wall Thickness :
0.5 mm - 30 mm
Certification :
ISO 9001:2015, EN 10204 3.1
Application :
Automotive Exhaust and Muffler System
Stabilizing Element :
Titanium stabilised ferritic grade
Model Number :
TP409-A268-630
Brand Name :
HANTAI
Product Name :
Automotive Exhaust High Temperature Seamless Stainless Steel Tube
MOQ :
1 Ton
Delivery Time :
7-15 days for stock, 20-30 days for production
Standard :
ASTM A268 / ASME SA268
Supply Ability :
2500 Tons per Month
Surface Finish :
Pickled and Annealed
Material Grade :
409 / UNS S40900 / EN 1.4512
Place of Origin :
Jiangsu, China
Manufacturing Process :
Cold Drawn Seamless
Price :
USD 2200-3400 / Ton
Payment Terms :
T/T,L/C at sight,Western Union
Packaging Details :
Seaworthy wooden case, plastic end caps, steel strip bundle
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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Automotive Exhaust 409 Seamless Stainless Steel Tube High Temperature Resistant

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Product Detail
Wall Thickness :
0.5 mm - 30 mm
Certification :
ISO 9001:2015, EN 10204 3.1
Application :
Automotive Exhaust and Muffler System
Stabilizing Element :
Titanium stabilised ferritic grade
Model Number :
TP409-A268-630
Brand Name :
HANTAI
Contact Supplier
video
Automotive Exhaust 409 Seamless Stainless Steel Tube High Temperature Resistant
Automotive Exhaust 409 Seamless Stainless Steel Tube High Temperature Resistant

TOBO STEEL GROUP CHINA

Verified Supplier
12 Years
shanghai, shanghai
Since 1998
Business Type :
Manufacturer, Agent, Importer, Exporter, Trading Company, Seller
Main Products :
Butt Weld Fittings, Stainless Steel Elbow, Stainless Steel Tee
Total Annual :
100000-100000000
Employee Number :
200~300
Certification Level :
Verified Supplier
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