Method for preventing heat treatment recarburization of ultra-low carbon stainless steel pipe

The invention relates to the technical field of metallurgy, and discloses a heat treatment recarburization prevention method for an ultra-low carbon stainless steel pipe, which comprises the following steps: smelting and melting raw materials to form molten steel to obtain primary smelting liquid; transferring the primary smelting liquid into an LF furnace, carrying out weak stirring by using bottom blowing argon, simultaneously lowering an electrode for heating, continuously carrying out strong stirring by using bottom blowing argon, simultaneously lifting the electrode for desulfurization, and carrying out soft stirring before refining is finished, so as to obtain a refining liquid; the refining liquid is transferred into a reaction tank of a VOD furnace, vacuumizing and oxygen blowing decarburization are carried out, the refining liquid is reduced, and then continuous casting is carried out to obtain a steel billet; performing rotary heat treatment on the steel billet to obtain a forging stock; the forging