ASTM A790 2205 Duplex Stainless Steel Seamless Pipe Sch40 - High Pressure Boiler & Heat Exchanger Tube

High-pressure boiler seamless tubes are often used in high temperature and high-pressure conditions, and the tubes are subject to oxidation and corrosion under the action of high-temperature smoke and water vapour. The steel tube is required to have high enduring strength, high oxidation corrosion resistance and good organizational stability. Seamless tubes for high pressure boilers are mainly used to manufacture superheater tubes, reheater tubes, gas conduit tubes, main steam tubes, etc. for high pressure and ultra-high pressure boilers.
Low and medium pressure boiler pipe GB3087-2008, high pressure boiler seamless pipe GB5310-1995 is used to manufacture various structural low and high pressure boiler superheated steam pipe, boiling water pipe and locomotive boiler superheated steam pipe, large smoke pipe, small smoke pipe and arch brick pipe with high quality carbon structural steel hot-rolled and cold-drawn (rolled) seamless steel pipe.

Dimensional tolerances:

Standard:
GB3087 -- Chinese national standard
GB5310 -- Chinese National Standard
ASME SA210 -- American Boiler and Pressure Vessel Code
ASME SA213 -- American Boiler and Pressure Vessel Code
ASME SA106 -- U.S. Boiler and Pressure Vessel Code
ASME SA335 -- U.S. Boiler and Pressure Vessel Code
DIN17175 -- Federal German Industrial Standard
EN10216-2 -- European Pressure Piping Standard

Uses:
Used for heating surface pipes of low and medium pressure boilers (working pressure is generally not more than 5.88Mpa and working temperature is below 450oC); used for heating surface pipes of high pressure boilers (working pressure is generally more than 9.8Mpa and working temperature is between 450oC and 650oC), economizer, superheater, reheater, and tubes used in petrochemical industry.

Main production steel pipe grades:
10, 20, 20G, 20MnG, 25MnG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB, 10Cr9Mo1VNb, SA106 Gr.B, A106 Gr.C, SA210A1, SA210C, SA213 T11, SA213 T12, SA213 T22, SA213 T23, SA213 T91, SA213 T92, ST45.8/III, 15Mo3, 13CrMo44, 10CrMo910, SA335 P11, SA335 P12, SA335 P22, SA335 P5, SA335 P91, SA335 P92,etc.

Since 2018, Zhongzheng Stainless Steel has actively cooperated with many domestic steel mills. Zhongzheng Stainless Steel regularly exchange steel technology with these mills and make progress from this. ln the process of communicating with customers, we carefully listen to customers' requirements and produce steel products as customers' demands. Under necessary circumstances,Zhongzheng Stainless Steel is willing to help customers find suitable steel mill to produce some special products to save time and cost for customers because we have the reliable resources of still mills to prevent you to be cheated.

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