What type of finish does commonly used steel pipe have to prevent corrosion in transit?

The commonly used steel pipe for preventing corrosion in transit typically has a galvanized finish. This process involves coating the steel pipe with a layer of zinc, which acts as a barrier to moisture, oxygen, and other corrosive elements in the environment. The galvanization process significantly enhances the pipe's durability and resistance to rust, making it ideal for long-term use and transportation before installation.

While epoxy and lacquer coatings can provide corrosion resistance in specific applications, they are not as widely used for standard steel pipes in transit as a galvanized finish. Additionally, having no finish would leave the steel susceptible to corrosion, undermining the pipe's integrity and lifespan. Therefore, the galvanized finish is the most effective and commonly applied method for protecting steel pipes during transportation.