Boiler pipe type:
"Medium and low-pressure boiler seamless pipe" (GB3087-1999) is used to manufacture superheated steam pipes, boiling water pipes and locomotive boiler superheated steam pipes, large smoke pipes, small smoke pipes and arch brick pipes of various structures. High-quality carbon structural steel hot-rolled and cold-drawn (rolled) seamless steel tubes.


"High-pressure seamless pipe for fertilizer equipment" (GB6479-86) is a high-quality carbon structural steel and alloy steel seamless steel pipe suitable for chemical equipment and pipelines, working temperature -40~400 °C, working pressure 10~30mA .


"High Pressure Boiler Seamless Pipe" (GB5310-1995) is a high quality carbon steel, alloy steel and stainless steel heat resistant steel seamless pipe for the heating surface of high pressure and above water tube boilers.


Classification of high pressure boiler tubes
Boiler tubes are widely used, mainly for high-pressure steam boilers and related pipelines, and can be classified according to chemical composition, location and pipe diameter.
(1) Classification by chemical composition: carbon structural steel, alloy steel, stainless steel.
(2) According to the classification of steel: it is divided into pearlitic steel, bainitic steel, martensitic steel and austenitic steel.
(3) Classification according to the part of use: steam tube outside the furnace, steam tube in the furnace.
(4) Classification by pipe diameter: divided into large diameter pipe and small diameter pipe.