OREANDA-NEWS. August 29, 2013. During the localization seminar for high grade seamless steel tubes for power utility boiler, the quality of the seamless Super 304H and HR3C steel tubes developed by TISCO for ultra supercritical boilers was successfully passed the assessment, and their performance reached the advanced level of the similar products in the world.
   
As problems for world energy and environment are ever increasingly serious, the development of ultra supercritical power utility boilers with more efficient, cleaner and bigger capacity is an inevitable trend. But the requirements of the application environmental conditions of the key ultra-supercritical unit components for the materials performance are extremely strict. In the past the materials were imported, which severely restricted the development of ultra supercritical power utility boilers in China.

After many years efforts since 2005, TISCO combined its equipment with the technological characteristics, developed a technological package for producing seamless Super 304H and HR3C steel tubes. These two kinds of steel have the advantages of good high temperature creep rupture strength, resistant to high temperature steam corrosion, and excellent in cold and hot working properties, their performance fully meet the design requirements of the power utility boiler industry. The products have successfully passed the performance test made by Shanghai Power Equipment Research Institute, the new product approval test organized by China Machinery Industry Federation, the review made by China Standardization Committee on Boiler and Pressure Vessels and the technical reviews made by the well-known domestic boiler enterprises, the quality of the products reached the advanced level of the similar products in the world.
 
It is reported that TISCO have focused on the substitutes for imported goods and strengthened its R&D capability for many years, developed a batch of seamless steel tubes for sub-critical, super-critical and ultra-supercritical power utility boilers. The products have been widely used by the well-known domestic boiler enterprises. Among them, three kinds of products produced by TISCO are widely used in the ultra-supercritical power utility boilers in China. TISCO is one of the three major certified suppliers for tube blanks and tubes of ultra-supercritical power utility boilers in China.