HOT-DIP GALVANIZING COATING SPECIFICATIONS
Governing specifications for hot-dip galvanized steel
The following documents are not available on our website. However, you can contact the American Society for Testing and Materials (ASTM).
Understanding the characteristics and performance of hot-dip galvanized steel will facilitate and increase the specification of the coating in applications where galvanizing will enhance the project.
The selection of which kind of steel is dependent on the type of coating required or preferred. Generally, galvanized coatings are chosen for their anti-corrosive properties, not for their appearance.
The following four principle properties of the steel selected can negatively affect the galvanized coating.
- Carbon in excess of about 0.25%.
- Silicon in the range of 0.04% to 0.15% or above 0.22% can produce galvanized coating growth rates much higher than those for steels with silicon levels below 0.04% and between 0.15% and 0.22%.
- Phosphorus in excess of 0.04%.
- Manganese in excess of about 1.3%.
We would be happy to discuss this with you in greater detail.