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409 409L stainless steel coil

Add Time:2021-01-07 Hits:107

  • 409 409L stainless steel coil
  • 409 409L stainless steel coil
  • 409 409L stainless steel coil
  • 409 409L stainless steel coil

409 409L stainless steel coil

Among the 400 series stainless sheets of steel, the application range of 409 409L stainless steel coils is second only to 430 stainless steel. It has good corrosion resistance, heat resistance, low-temperature resistance, and good mechanical properties. It is used to manufacture automobile exhaust system components. The requirements for the lightweight and long life of exhaust system components are well-realized, and exhaust gas emissions can be effectively reduced.

The cost of 409L is relatively low, the flexibility is better, the yield rate is high, and it is easy to replace. It is a great recyclable and environmentally friendly material.

Product Introduction

409 stainless steel is general-purpose chromium, titanium stabilized ferritic stainless steel, and its main application is automobile exhaust systems. It contains 11% chromium, which is the minimum amount to form a passive surface film for corrosion resistance of stainless steel. It has good high-temperature corrosion resistance, medium strength, good formability, and overall cost. Compared with carbon steel, 409 alloy has strong corrosion resistance and can be used as an alternative material for carbon steel in mildly corrosive environments because it has higher corrosion resistance and high-temperature oxidation, so it has advantages. It is usually used in applications where appearance is a secondary quality of mechanical properties and corrosion resistance.

409L ferritic stainless steel is nickel-free chromium steel. It has good corrosion resistance, oxidation resistance, high-stress corrosion resistance, magnetism and has advantages in technology, beauty, and application. This 409L stainless steel has better performance than ordinary carbon steel in long-term use, and the most important thing is that it is lower in price than nickel-containing austenitic stainless steel.

Chemical composition (WT%)

C: ≤0.03

Si: ≤1.0

Mn: ≤1.0

Cr: 10.5~11.7

S: ≤0.02

P: ≤0.04

Physical properties

T.S.(Mpa) ≥ 365

Y.S.(Mpa) ≥ 175

HB:      ≤162

Specification information

Material: 409 409L

Width: 1000mm, 1220mm,1250mm,1500mm etc

Thickness: 0.1mm—6.0mm

Surface: NO.1、2B、BA、N0.4、HL、8K Mirror

Decorative sheet and plate: color plates, titanium-plated plates, etching plates, oil-polished hairline plates (HL, NO.4), sandblasted plates, embossed plates.


409L stainless steel has strong high-temperature resistance and can be used in high-efficiency engines, exhaust systems, thermal switches, paddle wheels, etc. in the automotive field. It can also be used in automotive frames and heat exchangers.

The application range of 409L stainless steel is constantly being explored. At present, 409L stainless steel is used in dryers, motorcycle exhaust pipes, coal trucks, etc.


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