Heat treatment is the key procedure in the production process of ASME SA213 T22 boiler seamless pipe. Heat treatment has an important effect on the internal quality and surface quality of seamless steel pipe, especially for the production of ASME SA213 T22 boiler seamless pipe.
The stability of metallographic structure and the good surface quality of ASME SA213 T22 boiler seamless pipe inner and outer surface represent the manufacturing level of steel tube enterprises. After the determination of the chemical composition of the steel pipe, what endows the pipe with excellent mechanical properties and internal structure is the wide range of technological parameters given by the heat treatment process and the ASME standard. Find out the appropriate heat treatment process, ASME SA213 T22 boiler seamless pipe normal heat treatment process. The heat preservation is more than 20 minutes and tempering at 720 ℃-740 ℃ for 2h.
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