Advantages:
The pickling process is relatively fast.
The erosion of the base metal of the steel pipe is minimal, thus saving steel consumption.
Hydrogen diffuses less into the base metal of the steel pipe, resulting in less impact on pickling bubbles and the mechanical strength of the steel pipe.
The surface of the steel pipe after pickling is relatively clean.
Iron salts adhering to the surface of the steel pipe are easily washed away.
Pickling can be performed at room temperature or low temperatures, which improves environmental conditions to a certain extent.
Disadvantages:
The cost of pickling is relatively high.
Waste pickling solutions are not easily recycled.
Harmful hydrogen chloride gas is emitted during pickling.
When the concentration of the pickling solution decreases, it is not possible to maintain pickling capability by increasing the temperature, resulting in higher acid consumption.
Hydrochloric acid must be stored in porcelain jars or glass containers, which is inconvenient for storage and transportation.
