NSSC Won the Gold Award of New Applications Awards of ISSF for the Application of Duplex Stainless Steel for Mega Water Supply Tank!


Nippon Steel & Sumikin Stainless Steel Corporation (“NSSC”) won The Gold Award of New Applications Awards in the category of “The Best New Development” for the water supply tank in Yonago, during the 22nd Annual Conference of International Stainless Steel Forum (“ISSF”) held in Shanghai on 24th May, 2018.

The New Applications Awards, consisting of “The Best New Technology” and “The Best New Development”, are recognized by ISSF to the best example of new applications for the use of stainless steel. Items for evaluation include “social contribution”, “potential market demand”, and “application of new technologies”.

This new water supply tanks were built by the Bureau of Yonago City Waterworks in Tottori Prefecture, Japan. The Central Water Supply Tank which is one of the new tanks, is one of the largest cuboid type stainless steel water supply tanks in the world, with a capacity of 16,000m3. High corrosion resistance to withstand a severely corrosive environment was indispensable for the material of both the inner and outer surface of the tanks. They were installed on the top of the mountain near the coast of Japan Sea and expected to be exposed to strong seasonal sea breeze, while the water stored in the tanks contains sodium hypochlorite as disinfectant. Moreover, high strength was required for the material to resist pressure from large quantities of water stored in the tanks. Furthermore, a pleasing aesthetic appearance was required on the outer surface of the tanks, as symbols of this area. Duplex stainless steel is the best solution to meet all these requirements. The material also enabled to reduce maintenance cost as painting and coating are not necessary.

NSSC won the award because this application will contribute to improve the stability of water supply, which has been concerned in several countries around the world.

NSSC will continue to develop the new applications for the use of duplex stainless steel and will provide excellent solutions for our customers in a wide range.

Grade: SUS329J4L/No.4、SUS304/ No.1, No2B、SUS316/ No.1, No2B
Used amount: 440 tons