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Material quality very good. we have cooperate more than 10 Years. They trade lots kinds of steel material. All material quality good. They duty for all material quality. We are planing continue cooperate with them in the future

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ASTM S40900 409L Stainless Steel Welded Pipe for Automotive Exhaust with Corrosion Resistance and Polished Surface

Certification	AISI, ASTM
Minimum Order Quantity	50 kg
Price	US $1.65-3.88 / kg

Product Details

Model NO.	409L	Shape	Round
Technique	Welded	Surface Treatment	Polished
Specification	OD 6-127mm	Production Capacity	50000kgs
Carbon Content	Max:0.03	Manganese Content	Max:1.0
Silicon Content	Max:1.0	Phosphorus Content	Max:0.045
Sulfur Content	Max:0.045	Chromium Content	Min:10.5 Max:11.75
Nickel Content	Max:0.5	Titanium Content	Min:0.48 Max:0.75
Tensile Strength	380 MPa (min)
Highlight	Automotive Exhaust Stainless Steel Pipe , Corrosion Resistant Welded Pipe , Polished Surface 409L Pipe

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Product Description

ASTM S40900 409/409L Stainless Steel Pipe for Automotive Exhaust Systems

Stainless steel grade 409L is a chromium, titanium-stabilized ferritic stainless steel specifically designed for automotive exhaust systems. With 11% chromium content—the minimum required for forming the protective passive surface film—this alloy offers excellent corrosion resistance combined with medium strength, good formability, and cost-effectiveness.

Material Advantages

409L stainless steel provides superior corrosion resistance compared to carbon steel, making it ideal for mildly challenging environments where corrosion resistance and high-temperature oxidation protection are essential. This material prioritizes mechanical properties and corrosion resistance over appearance, making it perfect for functional applications.

Chemical Composition