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  • No.51, Ching 1st Road, Chungkang Export Processing Zone, Wuchi District, Taichung City 43541, Taiwan, R.O.C.
409L

  Grade 409L (UNS S40900, EN 1.4512) is a kind of stabile version of 409, composed with proper chromium, low composition of carbon and nitrogen and adjunction of titanium, all composition appropriate make Grade 409L products have some properties, corrosion resistance, weldability and formability. Due to the lower chromium, Grade 409L was another low cost option for corrosion resistant stainless steel.

Grade 409L has a good combination of heat resistance and corrosion resistance, can be ideal for non- or lightly corrosive environments or applications. It has excellent oxidation resistance in high temperatures and good welding performance, which can be used for automotive exhaust pipes or oil equipment.

PROPERTIES

  Grade 409L may be considered for a wide variety of applications where one or more of the following properties are important:

  • Corrosion resistance
  • Resistance to oxidation
  • Excellent resistance to high temperature, exhaust gas and atmospheric corrosion
  • Heat Treatment
  • Suitable for welding
  • Good flexibility and excellent formability
  • Low costs

CHEMICAL COMPOSITION AND PHYSICAL PROPERTIES FOR 409L
Item C% Si% Mn% P% S% Ni% Cr% N% Ti% Nb%
Min --- --- ---   --- 10.5   6(C+N)  
Max 0.03 1.00 1.00 0.04 0.02 0.5 11.7 0.03 0.5 0.17
Item Tensile Test Hardness Test Bend Test
0.2%Y.S. 1%Y.S. T.S. EL (%) HRBW HV 180
Min 170 --- 380 20 --- --- 0.5t
Max N/mm2 --- N/mm2 --- 88 ---  

APPLICATION

Grade 409L has excellent oxidation resistance in high temperatures, and composed by extra-low carbon Ferritic structure, so it has excellent in workability compared with conventional similar grades. Due to this properties, the typical applications for Grade 409L include:

  • Automotive exhaust systems (manifolds, exhaust pipes, converters, front and tail  pipes, converters, mufflers and other components)
  • Heat exchangers
  • Catalytic converter systems
  • Culverts
  • Home heating systems
  • Automotive thermostats
  • Fuel filters
  • Farm equipment components
  • Electrical transformer cases

SPECIFICATIONS
  • ASTM A240M – Chromium and Chromium – Nickel Stainless Steel Plate, Sheet and Strip for Pressure Vessels and for General Applications.
  • ASTM 480M – General Requirements for Flat Rolled Stainless and Heat-Resisting Steel Plate, Sheet and Strip
  • EN 10088-2 (1.4512) – Stainless Steel Technical delivery conditions for sheet, plate and strip of corrosion resisting steels for general purposes

PRODUCT TYPES
  • Coil
  • Sheet
  • Strip

RAW MATERIAL FINISHS
2D

A dull finish which results from cold rolling followed by annealing and descaling, and may perhaps gets a final light roll pass through unpolished rolls. A 2D finish is used where appearance is not a concern.

Range 914 (3') 1000 1219 (4') 1250 1500 1524 (5')
0.3mm ~ 3.0mm
30GA ~ 11GA
0.012" ~ 0.1196"
2B
(Mill Finish)

A bright, cold-rolled finish resulting in the same manner as 2D finish, except that the annealed and descaled sheet received a final light roll pass through polished rolls. This is the general-purpose cold-rolled finish that can be used as is, or a preliminary step to polishing.

Range 914 (3') 1000 1219 (4') 1250 1500 1524 (5')
0.3mm ~ 3.0mm
30GA ~ 11GA
0.012" ~ 0.1196"

PRODUCTS

No.4

ARCHITECTURE

Grinding finish, also called brushed, directional or satin finish. It was characterized by short,...

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Hairline

DECORATION

Higher grit numbers produce finer polishing lines. The general purpose of this finish is widely used for...

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MIRROR

KITCHEN WARE

Mirror (No.8, Non-Directional) is a high gloss, polished finish, having a high degree of reflectiveness...

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PVD - GOLD COATING

BATHROOM WARE

PVD is the abbreviation of Physical Vapor Deposition. It’s a process to produce a metal vapour...

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PVD - Black Coating

BATHROOM WARE

PVD is the abbreviation of Physical Vapor Deposition. It’s a process to produce a metal vapour...

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PVD - Brass Coating

BATHROOM WARE

PVD is the abbreviation of Physical Vapor Deposition. It’s a process to produce a metal vapour...

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PVD - Rose Coating

BATHROOM WARE

PVD is the abbreviation of Physical Vapor Deposition. It’s a process to produce a metal vapour...

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PVD - Zircon Coating

BATHROOM WARE

PVD is the abbreviation of Physical Vapor Deposition. It’s a process to produce a metal vapour...

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Vibration

BATHROOM WARE

Vibration is a multi-directional finish, which was also known by the names Non-directional Satin and Angel Hair.

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CD Overlay

BATHROOM WARE

CD Overlay, which was also known by the names Circle CD, is a patterned polished steel finish that is applied mechanically to ...

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slideshow

SERVICE CENTER

  • +886-4-2659-5179
  • +886-4-2659-5096
  • info@stanch.com.tw
  • No.51, Ching 1st Road, Chungkang Export Processing Zone, Wuchi District, Taichung City 43541, Taiwan, R.O.C.