Seamless steel tubes are mainly used to fabricate superheaters, reheaters, water walls, economizers and other components of supercritical and ultra-supercritical boilers. The steel tubes are required to possess high lasting strength, superior oxidation and corrosion resistance, and excellent microstructure stability. They are applied in engineering, coal mining, chemical industry, thermal power generation, boiler projects, bridges, grid structures, mechanical equipment manufacturing and other fields.
ASME SA-106B seamless steel tubes are pearlitic heat-resistant steels, widely adopted for water walls, superheaters, heat exchangers and piping systems of large-diameter, high-capacity boilers. These tubes operate long-term under high pressure and high temperature conditions, subject to the impacts of boiler water, flue gas and mechanical stress.
They are required to deliver high lasting strength and creep strength in high-temperature service zones, favorable resistance to corrosion by steam, hydrogen, alkalis and other media, as well as good oxidation resistance.
Applicable Standard for ASME SA-106B Seamless Steel Tubes
ASME SA-106/SA-106M-2010 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
