Weathering steel , corrosion-resistant steel, Corten steel, water-resistant , corrosion -resistant steel sulfuric acid dew point , heat-resistant steel , high temperature steel, wear-resistant steel , alloy steel plate , carbon steel plate superior military steel , carbon steel , alloy steel, spring steel, carbon tool boards, high-speed tool board, electric iron and other special special steel coils . ND steel that 09CrCuSb (S-TEN2) steel is the best at home and abroad , " low temperature sulfuric acid dew point corrosion resistant " steel , ND steel is widely used in the manufacture of high sulfur flue serving economizer, air preheater , and evaporator heat exchanger equipment and other devices used to resist sulfur gas dew point corrosion. ND Steel also has the ability to resist the chloride corrosion. ND steel main reference index ( 70 ¡ã C 50% H2SO4 solution soak for 24 hours ) , and carbon steel , imported from Japan, like steel, stainless steel corrosion resistance compared to higher than these steels .            Products after major domestic refineries and manufacturing units to use to wide acclaim , and get good results. Specific data in the table below :      ND steel corrosion rate comparison , mg / c ©O . h (70 ¡æ 50% H2SO4) steels ND CRIR ( Japan ) 1Cr18Ni9 Corten 20G, the corrosion rate of 7.30 13.40 21.70 63.00 103.50      Uses: