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SUS409L is a cost-effective ferritic stainless steel widely recognized as the "muffler grade" due to its predominant use in automotive exhaust systems. This grade offers excellent value while meeting demanding automotive requirements.
Chemical Composition
Grade
C
Cr
Ni
Ti
409
0.03
10.5~11.7
0.50
8(C+N) min. 0.15~0.50
Key Characteristics
Basic corrosion and oxidation resistance
Optimized composition for superior formability
Weldable in thin sections (fully ferritic structure)
Cost-effective with stable pricing due to low alloy content
Automotive Applications
Automotive exhaust systems operate under extreme conditions including high temperatures at the manifold, sulphuric acid condensate, and de-icing salt exposure. Despite these harsh environments, the 11% chromium 409 grade has proven reliable for decades. The material's exceptional formability allows for bending, expanding, and pressing into complex shapes required for exhaust components.
Additional Applications
Heat exchangers
Gas boilers
Fuel filters
Product Images
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2012
Total Annual:
500,000,000-800,000,000
Employee Number:
100~200
Ecer Certification:
Verified Supplier
Company Overview :
The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation.
The subordinate processing plant has 6 sets of medium frequency h... Company Overview :
The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation.
The subordinate processing plant has 6 sets of medium frequency h...