Hot-Dip Galvanizing for Corrosion Protection

Course Number: MA-3002
Credit: 3 PDH
Subject Matter Expert: American Galvanizers Association
Price: $89.85 Purchase using Reward Tokens. Details
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Overview

In Hot-Dip Galvanizing for Corrosion Protection, you'll learn ...

  • The mechanism that causes unprotected steel to corrode
  • The direct and indirect costs incurred by society as a result of corrosion
  • The mechanism by which HDG provides barrier and cathodic protection of the substrate steel
  • The steps involved in the HDG process

Overview

PDHengineer Course Preview

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Credit: 3 PDH

Length: 33 pages

Hot-dip galvanizing (HDG) offers many advantages relative to other corrosion protection systems. HDG offers both barrier protection of the substrate and cathodic protection. No paint system can do that. Unlike paint, HDG is actually THICKER at edges and corners, where paint systems are most susceptible to failure. And HDG can protect nooks and crannies that paint just can't get to. Additionally, HDG is UV-resistant and is extremely durable. When applied to steel, HDG is actually harder than the steel substrate that it protects. Oh yes, let's not forget that HDG provides immediate protection when it comes out 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.

In this course, you'll learn the mechanisms of steel corrosion and how HDG protects steel by providing both barrier and cathodic protection. We'll discuss the steps involved in HDG and how to prepare your assembly for HDG application. The course also looks at other methods for applying zinc to metallic components and how these alternate methods compare 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.

Specific Knowledge or Skill Obtained

This course teaches the following specific knowledge and skills:

  • The mechanism that causes unprotected steel to corrode
  • The direct and indirect costs incurred by society as a result of corrosion
  • The mechanism by which HDG provides barrier and cathodic protection of the substrate steel
  • The steps involved in the HDG process
  • The corrosion-resistance and durability benefits afforded by HDG
  • ASTM standards related to HDG and what they cover
  • Specific examples of how HDG has performed well long-term in some very harsh environments
  • Alternate methods of applying zinc coatings and how they perform relative to HDG
  • How to prepare your assembly for HDG
  • The superior protection afforded by a duplex system
  • The spalling that can result from corroded rebar in concrete and how HDG extends the service life of rebar

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 15 questions. PDH credits are not awarded until the course is completed and quiz is passed.

Board Acceptance
This course is applicable to professional engineers in:
Alabama (P.E.) Alaska (P.E.) Arkansas (P.E.)
Delaware (P.E.) Florida (P.E. Area of Practice) Georgia (P.E.)
Idaho (P.E.) Illinois (P.E.) Illinois (S.E.)
Indiana (P.E.) Iowa (P.E.) Kansas (P.E.)
Kentucky (P.E.) Louisiana (P.E.) Maine (P.E.)
Maryland (P.E. Category A) Michigan (P.E.) Minnesota (P.E.)
Mississippi (P.E.) Missouri (P.E.) Montana (P.E.)
Nebraska (P.E.) Nevada (P.E.) New Hampshire (P.E.)
New Jersey (P.E.) New Mexico (P.E.) New York (P.E.)
North Carolina (P.E.) North Dakota (P.E.) Ohio (P.E. Self-Paced)
Oklahoma (P.E.) Oregon (P.E.) Pennsylvania (P.E.)
South Carolina (P.E.) South Dakota (P.E.) Tennessee (P.E.)
Texas (P.E.) Utah (P.E.) Vermont (P.E.)
Virginia (P.E.) West Virginia (P.E.) Wisconsin (P.E.)
Wyoming (P.E.)
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PDHengineer Course Preview

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Credit: 3 PDH

Length: 33 pages

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