Address industry concerns regarding thick HDG coatings and available methods to prevent flaking during transport and field handling. Remove recommendations for over-pickling in sulfuric as a method to remedy low coating thickness for Al-killed steels. Over-pickling cannot be measured and can result in poor coating quality. Additional language added to clarify the difference in outcomes achieved when blast cleaning steels before galvanizing based on the steel chemistry.
Date Initiated: 06-15-2021
Technical Contact: Alana Fossa
Item: 001
Ballot: A05 (21-04)
Status: Will Reballot Item
Item: 010
Ballot: A05 (22-01)
Status: Approval On Hold