Steel chemistry has a profound effect on the initial appearance of hot-dip galvanized steel. Other factors such as cooling rates and stresses induced from steel processing or fabrication can also impact the finish. Whether shiny, matte, spangled, mottled, or mixed appearance; all galvanized coatings offer consistent corrosion resistance and are acceptable according to ASTM specifications.
0:29 Different Types of HDG Appearances
0:46 The Importance of Steel Chemistry and ASTM A385 Specification
2:26 Unique Surface Conditions Caused by Steel Chemistry
3:00 Cooling Rates & Fabrication Practices
3:11 Spangle Surface Appearance
3:48 Mottled Surface Appearance
4:30 Mixed Shiny and Matte Appearance
More information regarding steel chemistry and hot-dip galvanizing coating appearance can be found on the AGA website:
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24 янв 2021
