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Cathodic Protection and Anode Backfills


Cathodic protection is a key method for preventing corrosion, and understanding its basic concepts is very important. Here we look at the use of specific anode

Hot-dip vs Cold Galvanizing: What’s the Difference?


There are two main methods for galvanizing steel: hot-dip galvanizing and cold galvanizing. This article looks at these two galvanizing methods and discusses h

Worker performing maintenance on railway railroad track.


Demand for new railroad infrastructure is increasing due to a growth in urbanization and a desire to reduce travel time, resulting in higher demand for...

New pipe and old corroded rusty pipes.


Pipeline corrosion—and the related catastrophic failures that it can cause—cost billions of dollars to the economy each year. Here's how it happens and the...

Welder performing a welding operation.


A welded joint can have a low resistance to corrosion. Find out what factors cause this and how you can prevent corrosion on welded joints.

Oil sands in Alberta Canada


An Innovative Coating Solution for Oil Sands Equipment Using a Chromium Carbide Weld Overlays

Rockwell hardness scale test indenter


Knowing the hardness of materials is extremely useful as it assists in the selection of appropriate materials for specific applications. Prior knowledge of the

Oil refinery with stainless steel process equipment and pipelines.


Polythionic acid stress corrosion cracking of austenitic stainless steel can be prevented by an appropriate soda ash neutralization solution or removal of...

Sign indicating a cathodic protection test point.


Learn about cathodic protection potential measurement, a method used to determine the adequacy of a cathodic protection system by comparing the measured potent

Shiny metal alloy coring


Coring: How to Properly Remove This Damaging Alloy Defect to Prevent Corrosion and Improve the Metal's Mechanical Properties

An Introduction to the Galvanic Series: Galvanic Compatibility and Corrosion


When metals are incorrectly combined and exposed to water and other types of electrolytes, the effects can be very harmful. Find out more about the galvanic se

Old large rusty water pipes. Corroded metal pipe destroyed.


The corrosion of steel piping and its related components is a continuous and virtually unstoppable process. Here we'll look at some of the most common corrosio

Polyurea coating on a factory floor.


Polyurea coatings are preferred where other coatings fail to protect the substrate. They have the unique advantage of moisture resistance, rapid curing, and...

A worker welding stainless steel beams.


Chloride stress corrosion cracking (Cl-SCC) is the most common type of cracking of austenitic stainless steel. It has been the observed cause of metal...

Measuring the thickness of a coating.


Measurement of film thickness can be done with many different instruments. Understanding the equipment available for film thickness measurement is important fo

Experts


With respect to CUI, how well do thermal insulating coatings retard the spread of corrosion?


Editor's note: this question was answered in The Use of Insulation Coatings for Burn Protection, a Webinar from Corrosionpedia. See more on our Webinar page.Thermal...

Are there CUI concerns for operating temperatures over 350 degrees F?


Absolutely. Corrosion under insulation (CUI) can be a serious issue for pipes and process equipment covered with thermal insulation. The corrosion range has kind of been...

Where can I find a coating that is chloride and sulfur corrosion-resistant?


Thank you very much for your inquiry. We get questions like this all the time, and they are far more complex than most people realize.First, to be clear, we are...

How can you avoid flash rust during wet blasting?


Flash rust is defined as the corrosion that occurs on the surface of a metal shortly after any wet method of surface preparation. This type of rusting typically occurs...

What are the different Xylan coatings and how do I decide which is best?


Xylan is an industrial dry film lubricant consisting primarily of one or more fluoropolymers including polytetrafluoroethylene (PTFE) (Figure 1), perfluoroalkoxy alkane...

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