What is heat treatment of SMLS steel pipe

Heat treatment of SMLS steel pipe refers to a kind of SMLS steel pipe heat treatment process, which can obtain the expected structure and properties by means of heating, heat preservation and cooling.

Heat treatment of SMLS steel pipe:

1. Normalizing: the SMLS steel pipe is heated to the appropriate temperature above the critical point AC3 or ACM for a certain time and then cooled in air to obtain pearlite structure.

2. Annealing: the hypoeutectoid steel workpiece is heated to 20-40 degrees above AC3 and cooled slowly in the furnace (or buried in sand or lime) to below 500 degrees and cooled in air after holding for a period of time.