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409L is a cost-effective ferritic stainless steel primarily used in automotive exhaust systems, earning it the common name "muffler grade."
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, sulfuric 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, and fuel filters.
Product Images
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification:
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...