20G High Pressure Boiler Tube and Low Pressure Boiler Tube
20G high pressure boiler tube is a kind of boiler tube, belonging to the category of seamless steel pipe. The manufacturing method is the same as that of the seamless pipe, but it has strict requirements for the steel which used to make the steel pipe. Low-pressure boiler tube is made of steel ingot or solid tube through the perforated tube, and then made by hot rolling, cold rolling or cold drawing.
20G high-pressure boiler tubes is mainly used to manufacture high-pressure steam boiler tubes and the like with the above high-pressure carbon steel, alloy steel and heat-resistant stainless seamless pipe. Boiler tubes are often operated at high temperatures and pressures, and the tubes are oxidized and corroded under the action of high temperature flue gas and water vapor. Therefore, steel pipes are required to have high durability, high oxidation resistance and good organizational stability
Low and medium pressure boiler tubes are used to manufacture all kinds of low and medium pressure boilers, superheated steam pipes, boiling water pipes, water wall pipes and locomotive boilers with superheated steam pipes, big smoke pipes, small smoke pipes and arch pipe. Hot-rolled or cold-rolled (welded) seamless steel tubes with high quality carbon structural steel. In order to ensure the chemical composition and mechanical properties, it should do water pressure test, curling, flaring, flattening and other tests.