09CrCuSb Alloy Steel Seamless Tube Corrosion Resistance For
Preheater And Heat Exchanger
09CrCuSb tube is a kind of alloy steel tube widely used in
preheater and heat exchanger. It is widely used in power plants and
refineries to manufacture coal economizers, air preheaters, heat
exchangers and evaporators which work in high sulfur flue gas to
resist condensation corrosion of sulfur flue gas.
The low-alloy ND steel 09CrCuSb, which is resistant to sulfuric
acid dew point corrosion for seamless steel tubes, plates, forgings
and special welding materials, was prepared by smelting in
ultra-high power electric furnace, refining outside furnace and
vacuum degassing. It is characterized by the formation of a dense
passivation film rich in Cr, Cu, Sb and Ti on its surface during
the corrosion process, so it has a high anticorrosion ability.
ND steel is a low alloy structural steel.Compared with other types
of steel such as mild steel, Corten, CR1A, ND steel has excellent
corrosion resistance and mechanical properties.
Chinese GB150.2-2011 appendix A.3.5Chemical Composition:
Percentage elongation(A %)