Generally, the service temperature of 9948 oil cracking pipe is below 450 ℃, and the domestic pipe is mainly made of No.10 and No.20 carbon steel hot-rolled pipe or cold drawn pipe.
② 9948 oil cracking pipe is often in high temperature and high pressure conditions when it is used. Under the action of high temperature flue gas and water vapor, the pipe will be oxidized and corroded. The steel pipe is required to have high endurance strength, high oxidation resistance and corrosion resistance, and good structure stability.
(2) use:
① Generally, 9948 petroleum cracking pipe is mainly used to manufacture water wall pipe, boiling water pipe, superheated steam pipe, superheated steam pipe for locomotive boiler, large and small smoke pipe and arch brick pipe, etc.
② 9948 petroleum cracking pipe is mainly used to manufacture superheater pipe, reheater pipe, air pipe, main steam pipe, etc. of high pressure and ultra-high pressure boiler