20G high pressure boiler tube is mainly used to manufacture superheater tube, reheater tube, gas pipe and main steam pipe of high pressure and ultra-high pressure boiler. Under the action of high temperature flue gas and water vapor, pipes will be oxidized and corroded, so there are strict requirements for the steel grades used in the manufacture of such steel pipes.

20G high pressure boiler tube is often used in high temperature and high pressure conditions. 20G steel pipe has high endurance strength, high oxidation resistance and good structure stability. The 20G high pressure boiler tube is made of steel used for pressure parts of boiler, which is generally used in boilers under 39kg. In order to use under higher pressure, the heating surface tube is often designed to be very thick.