... DN800Section shapement:Round (Bevelled ends/plain end pipe)Product categoryMain materialImplementation of standardsSpecification RangeUseStructural tube20 ... medium pressure boiler superheater tube, boiling water pipe, pipe size locomotivealloy steeltubeCr5Mo(P5,STFA25,T5,)15CrMo ... -79JISG3467-88JISG3458-8816-824×2-100Petroleum, chemical, electric power, the boiler industry, high temperature, low ...