The annealing of seamless steel pipe is a metal heat treatment process, which refers to slowly heating the metal to a certain temperature, keeping it for a sufficient time, and then cooling it at an appropriate speed.
The characteristics of seamless pipe annealing
(1) When the seamless pipe is used, it loses its original hardness due to heat.
(2) After heating the seamless pipe to a certain temperature for a certain period of time, it is allowed to cool slowly. Annealing can reduce metal hardness and brittleness and increase plasticity.
The purpose of seamless pipe annealing
(1) Reduce hardness and improve machinability;
(2) Eliminate residual stress, stabilize dimensions, reduce deformation and crack tendency;
(3) Refine the grain, adjust the structure, and eliminate the defects of the structure.
(4) Uniform material structure and composition, improve material performance or prepare for subsequent heat treatment.
In production, the annealing process is widely used. According to the different purposes of annealing required by the workpiece, there are many annealing process specifications, and the commonly used ones are complete annealing, spheroidizing annealing, and stress relief annealing.
The characteristics of seamless pipe annealing
(1) When the seamless pipe is used, it loses its original hardness due to heat.
(2) After heating the seamless pipe to a certain temperature for a certain period of time, it is allowed to cool slowly. Annealing can reduce metal hardness and brittleness and increase plasticity.
The purpose of seamless pipe annealing
(1) Reduce hardness and improve machinability;
(2) Eliminate residual stress, stabilize dimensions, reduce deformation and crack tendency;
(3) Refine the grain, adjust the structure, and eliminate the defects of the structure.
(4) Uniform material structure and composition, improve material performance or prepare for subsequent heat treatment.
In production, the annealing process is widely used. According to the different purposes of annealing required by the workpiece, there are many annealing process specifications, and the commonly used ones are complete annealing, spheroidizing annealing, and stress relief annealing.
