INDUSTRIAL MANUFACTURING BLOG YOU SHOULD BE READING

Comparison between hot-dip galvanizing and ordinary galvanizing

31, Jul. 2025

Are you torn between hot-dip galvanizing or ordinary galvanizing when choosing steel? Explain the differences and advantages between the two at once!

Hot dip galvanizing vs non hot dip galvanizing: how to choose?
Are you torn between hot-dip galvanizing or ordinary galvanizing when choosing steel? Explain the differences and advantages between the two at once!
hot-dip galvanizing
Super rust proof: Through high-temperature zinc immersion process, a thick layer of zinc protection is formed, with extremely strong corrosion resistance, suitable for outdoor and humid environments.
Long lifespan: It can usually be used for 8-10 years and has low maintenance costs.
Slightly higher price: Due to the complex process and high cost, the long-term cost-effectiveness is significant.

Hot-dip galvanized pipes have a long service life, usually starting to rust after 8-10 years, but the overall service life can reach more than 20 years. If sprayed, the service life can be extended to more than 30 years.

When all of the parts are completed, the process hole is punched, we will put them into the zinc pool for galvanization, the inside and outside of the pipe are all covered with zinc layer, after that, the surface will be polished. Hot-dip galvanizing, higher requirements for material.

Please check the pictures below:

Comparison between hot-dip galvanizing and ordinary galvanizing
ordinary galvanizing
Economically applicable: The surface zinc layer is thin, the cost is low, and it is suitable for short-term use or indoor environments.
Regular maintenance is required: the rust prevention ability is weak, and it is prone to rusting in humid environments.