409 Stainless Steel Coil | Automotive Exhaust Stainless Steel | Heat‑Resistant Ferritic Stainless Steel

🟧 Product Overview

409 stainless steel is one of the most widely used ferritic stainless steels in the automotive industry. It offers:

• Good oxidation resistance
• Stable performance at elevated temperatures
• Cost‑effective composition with low nickel
• Good weldability and formability
• Suitable for continuous thermal cycling

Because of its balance of performance and cost, 409 is the global standard material for automotive exhaust systems.

🟧 Key Features

• Excellent heat resistance up to ~675°C
• Good corrosion resistance in exhaust gas environments
• Low nickel content for cost stability
• Good weldability for exhaust system fabrication
• Magnetic ferritic structure

🟧 Standards

• ASTM A240 / A480
• JIS G4304 / G4305 (SUS409L)
• EN 10088‑2 (1.4512)
• GB/T 3280

🟧 Chemical Composition (Typical)

Element	409 (%)
C	≤0.03
Cr	10.5–11.75
Ni	≤0.5
Mn	≤1.0
Si	≤1.0
Ti	Stabilized
Fe	Balance

Note: Titanium stabilization improves weldability and reduces the risk of intergranular corrosion.

🟧 Mechanical Properties (Typical)

Property	Value
Yield Strength	≥170 MPa
Tensile Strength	≥380 MPa
Elongation	≥20%

🟧 Product Specifications

Thickness

• 0.25 – 6.0 mm

Width

• 600 – 2000 mm

Surface Finishes

• 2B
• BA
• No.1
• No.4
• HL

🟧 Applications

Automotive Exhaust Systems

• Mufflers
• Exhaust pipes
• Catalytic converter shells
• Resonators
• Tailpipes

Heat‑Resistant Industrial Applications

• Heat shields
• Thermal processing equipment
• Furnace components (moderate temperature)

🟧 Why Choose Jaron Steel

• Professional supply of 409 stainless steel coil
• Automotive‑grade quality control
• Stable heat‑resistant performance
• SGS / BV inspection available
• Export‑grade seaworthy packaging