Webinar
No. C-201W
In Galvanize It!, you'll learn ...
- The causes of corrosion, as well as the staggering direct and indirect costs (estimated at 15% to 30% of the U.S. gross domestic product)
- How zinc coatings, specifically hot-dip galvanizing, can protect against steel corrosion
- How to incorporate sound corrosion protection into the design of steel products
- How to significantly decrease maintenance costs over the life of a structure
Overview
America has a corrosion problem. And in many cases galvanization is the best solution to this problem. Hot-dip galvanizing (HDG) offers many advantages over other corrosion protection systems. For example, HDG offers both barrier protection of the substrate and cathodic protection. No paint system can do that. Unlike paint, HDG is thicker at edges and corners, where paint systems are most susceptible to failure. Plus, HDG can protect nooks and crannies that paint just can’t get to.
Additionally, HDG is UV-resistant and extremely durable. When applied to steel, HDG is harder than the steel substrate it protects. And let’s not forget that HDG provides immediate protection when it comes out of the vat. There’s no need for the extended “curing” period required by many coating systems before the coated component can be placed into service.
You will learn all of these things and much more in this lively webinar, which is led by the industry experts in HDG, The American Galvanizers Association (AGA). You’ll learn the mechanisms of steel corrosion and you’ll learn how HDG protects steel by providing barrier and cathodic protection. We’ll discuss the steps involved in HDG, as well as ways to prepare your assembly for HDG application. We will also look at other methods for applying zinc to metallic components and compare these alternate methods to HDG in both application and performance. Finally, we’ll examine the superior durability and protection afforded by a duplex system, which contains a HDG base combined with a topcoat paint system.
This webinar offers state-of-the-art information from The American Galvanizers Association, the industry's trade organization, and it is presented by AGA's Executive Director and Marketing Manager.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- The corrosion problem in North America
- Infrastructure
- Corrosion costs
- The corrosion process
- Corrosion of bare steel
- Hot-dip galvanizing (HDG) and coating characteristics
- The history of galvanizing
- HDG process: surface preparation, galvanizing, inspection
- Galvanizing reaction: metallurgical bond, steel chemistry, coating microstructures, edge protection, etc.
- Zinc coating life predictor
- Time to first maintenance
- Galvanized steel in soil
- Galvanized steel in water
- Effect of pH on galvanized steel
- Zinc coatings comparison
- Metalizing
- Zinc-rich paints
- Continuous sheet galvanizing
- Electroplated
- Zinc (mechanical) plated
- Design and fabrication of steel products
- Communication
- Suitable materials: castings, fasteners
- Cold working
- Welding: weld rod chemistry, seal welding, welding after galvanizing
- Venting and drainage: hollow structures, base plates
- Temporary bracing
- Oversized pieces
- Material handling: hoists, cranes, chains, wires, etc.
- Marking: metal tags, weld beads, stamping, oil-based paint, etc.
- Masking
- Galvanizing specifications and standards
- American Society for Testing and Materials (ASTM) Standards
- Canadian Standards Association (CSA)
- International Standards Organization (ISO)
- How to inspect galvanized steel
- Visual inspection
- Coating thickness
- Adherence test
- Duplex systems: painting/powder coating HDG
- Motivating factors: aesthetics, identification, hostile environment, repair
- ASTM D 6386
- Galvanized surface condition
- Passivation cycle
- Synergistic effect
- The cost of corrosion protection
- Initial cost parameters
- Life-cycle cost
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