Products
& Applications

Ferritic Stainless Steel

This is a magnetic type of stainless steel, having low carbon content and containing chromium as a main element. With a slightly higher yield strength than Austenitic grades, Ferritic stainless steel finds greater use where there is a risk of stress-corrosion cracking. Further more, some ferritic grade content of Titanium or Niobium are call "stabilize grade" with inprove weldability and corrosion resistance. POSCO-Thainox’s Ferritic products : Grades 409L, 430, 439, 441, POSRE1, POS430M2, POS445NF, 436L, 436J1L, and 430J1L, are available in 2D, 2B and BA surface finished.

[2D = Cold-Rolled Dull Finished; 2B = Cold-Rolled Bright Finished; BA = Bright Annealed]

Table of POSCO-Thainox Stainless Steel Products and Grade Selection*

Ferritic Products* Typical
Component
Characteristics Applications
Grade Finished Thickness
409L 2D, 2B 0.3-3.0 10.5Cr Ti Good weldability and formability, high-temperature oxidation resistance Exhaust pipe
BA 0.3-1.6
410L 2D, 2B 0.3-3.0 11Cr 0.03C Good formability, bendability and high-temperature oxidation resistance Automotive industry, boiler, industry machiner components
BA 0.3-1.6
430 2D, 2B 0.3-3.0 16Cr Moderate formability, high corrosion resistance Home appliance, washing machine
BA 0.3-1.6
439 2D, 2B 0.3-3.0 17Cr Ti High corrosion resistance and high-temperature oxidation resistance Exhaust pipe, hot water tank
BA 0.3-1.6
441 2D, 2B 0.3-3.0 18Cr TiNb Good deep drawability, better resistance against roping, high thermal conductivity, low thermal expansion coefficiency Washing machine, sink, kitchenware, decorative panel
BA 0.3-1.6
444 2D,2B 0.3-3.0 17Cr 2Mo Great intergranular corrosion resistance and SCC resistance Heat exchanger, Auto exhaust manifold
BA 0.3-1.6
POSRE 1 2D, 2B 0.3-3.0 19Cr TiNb Good corrosion resistance, drawability, and weldability; high-temperature oxidation resistance Home appliance, kitchenware
BA 0.3-1.6
POS430M2 2D, 2B 0.3-3.0 16Cr Nb Good formability, corrosion resistance, and weldability with low carbon and nitrogen content Home appliance, hard disk drive
BA 0.3-1.6
POS430RE 2D, 2B 0.3-3.0 16Tr Ci Good formability and ridging resistance Washing machine, sink, kitchenware
BA 0.3-1.6
POS445NF 2D, 2B 0.3-3.0 20Cr MoTiNb High corrosion resistance and good weldability Kitchenware, elevator
BA 0.3-1.6
436L 2D, 2B 0.3-3.0 16Cr MoTiNb Excellent corrosion resistance by adding Molybdenum, good weldability Exhaust pipe, hot water system
BA 0.3-1.6
436J1L 2D, 2B 0.3-3.0 17Cr MoTi Excellent corrosion resistance and weldability;  cost savings with lower molybdenum content, compared to Grade 436L Automotive industry
BA 0.3-1.6
430J1L 2D, 2B 0.3-3.0 19Cr Nb Cu Good corrosion resistance and formability; high-temperature oxidation resistance, compared to Grade 430, by adding copper and niobium Exhaust pipe, home appliance
BA 0.3-1.6

[C = Carbon, Cr = Chromium, Cu = Copper, Mo = Molybdenum, Nb = Niobium, Ni = Nickel, Ti = Titanium]
* Some grades are during the development process or under the testing process.

For more info about stainless steel
-technical@poscothainox.com
-qc-tspc@poscothainox.com

For more info about domestic sales and export sales
-sales@poscothainox.com
-export@poscothainox.com
-sales-tspc@poscothainox.com

 

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