Corrosion protection solutions for hygienic water quality management
STS Lining
Highly corrosion-resistant materials (STS329J3L, STS329LD) prevent corrosion and completely isolate water from the interior walls of concrete structures, extending the service life of the structure and enhancing stability.
Perfect corrosion prevention with duplex stainless steel (STS329J3L, STS329LD).
*Use POSCO products: See Mill Test Certificate (MTC).
329J3L
As it contains a large amount of corrosion-resistant strengthening elements, such as Cr, Mo, and N, duplex steel has excellent resistance to chloride corrosion, SCC, pitting, crevice corrosion, abrasion, and erosion, and is mainly used in water tanks, desalination facilities, chemical facilities, and food facilities.
329LD
Ni- and Mo-saving duplex (lean duplex) steel with excellent corrosion resistance and intergranular corrosion resistance, is commonly used for water tanks, water pipes, seawater facilities, chemical facilities, etc.
STS LINING
Features
The application of duplex stainless steel (STS329J3L, STS329LD) prevents corrosion and eliminates bacterial growth and scale, so it can be used semi-permanently in an optimal environment.
Prevents deformation of the panel caused by thermal expansion and contraction by applying stainless steel molded panels.
The entire TIG welded box eliminates the need for glue and provides excellent waterproofing, thereby completely preventing leakage or the entry of contaminants.
Meteorology Department (Welding/ Acid Cleaning)Test period: 1 year 2 months/ Source
Corrosion occurrence
Corrosion occurrence
No corrosion
Water quality statistics of Seoul and Busan purification plants
Residual chlorine in water : 0.8ppm~1.2ppm
Test conditions
Residual chlorine in water: 0.8ppm~1.2ppm
Material: 304, 316L, 329J3L
Surface condition: Corrosion of base metal, welds, and crevices of base metal
Recommended Stainless Steel Grades by Water Quality Environment source: posco, Korea Iron & Steel Association Stainless Steel Club
water environment
Residual chlorine(ppm)
Recommended steel grades
304(L)
316(L) /329(D)
444
329J3L
Water pipes
0.1~0.3
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Cisterns
Residual ponds
0.1~0.4
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Meteorology department
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Residual ponds
0.5~1.0
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Meteorology departments
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Water purification plants
0.8~1.1
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STS LINING
Applications (Applied Cases)
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21, Yarogongdan-gil, Yaro-myeon, Hapcheon-gun, Gyeongsangnam-do, Republic of Korea
Corrosion occurrence
No corrosion
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