& Applications

Austenitic Stainless Steel

As the most commonly used, Austenitic stainless steel is non-magnetic; and contains both chromium and nickel, which increases corrosion resistance and ease of fabrication. POSCO-Thainox’s Austenitic products: Grades 301, 304, 304L, 316, 316L, 321, and 304J1, are available in 2D, 2B, and BA finishes.

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

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

Austenitic Product*







301 2D, 2B 0.3-3.0 16Cr 6Ni 0.15C High strength Seat belt, spring
BA 0.3-1.6
304 2D, 2B 0.3-3.0 18Cr 8Ni Good corrosion resistance and formability, high weldability, excellent cleanability Home appliance, food tank, building and transportation industries
BA 0.3-1.6
304L 2D, 2B 0.3-3.0 18Cr 8Ni 0.03C Good corrosion and  sensitization  resistance, high weldability Tube, hollowware, home appliance
BA 0.3-1.6
316 2D, 2B 0.3-3.0 16Cr 10Ni 2Mo Excellent corrosion and pitting resistance, high strength at high temperature by adding molybdenum Food processing industry, boiler, heat exchanger
BA 0.3-1.6
316L 2D, 2B 0.3-3.0 16Cr 10Ni 2Mo 0.03C Excellent intergranular corrosion resistance, compared to Grade 316, with low carbon content Chemical industry, truck tanks, hot water tank
BA 0.3-1.6
321 2D, 2B 0.3-3.0 17Cr 9Ni Ti Increase intergranular corrosion resistance by adding titanium Heat exchanger
BA 0.3-1.6
304J1 2D, 2B 0.3-3.0 15Cr 6Ni Cu Excellent formability by adding copper Suitable for deep drawing applications
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.

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