Risks to existing pipelines associated with the change from natural gas to hydrogen

These tiny molecules are given an important role for our quest in having a flexible source for production, storage use of energy. During this meeting, the Norwegian producer Equinor, technology firm ENGIE, The German RWE and the Dutch Gas grid operator Gasunie signed an agreement to make the first steps to create a supply chain […]

Why is Shore sheetpile corroded so fast?

Most of the installed shore sheetpiles are applied without the use of a corrosion protection system like: Cathodic protection or a coating. The general assumption is that the shore sheetpile will last long enough with some overdesign (corrosion allowance). Whether this assumption holds, really depends on the environment at which the shore sheetpile is exposed […]

Sulfidation Corrosion – Everything You Need to Know

Sulfidation corrosion is a type of degradation that occurs when sulfur-bearing compounds react with metal surfaces. In most cases, this reaction leads to the formation of metal sulfides. The resulting metal sulfides are often harder and more brittle than the metal itself, which can cause catastrophic failure in some instances. Sulfidation corrosion is a significant […]

Explanation of the ISO 8502 on surface cleanliness


This standard is covering all aspects related to the determination of contaminants that are required to removed before coating application. It is therefore titled: “Preparation of steel substrates before application of paints and related products – Tests for the assessment of surface cleanliness” It is a well known standard that serves as starting point for […]

Principles of Corrosion

Corrosion is defined as the deterioration of metal or concrete by chemical or electrochemical reaction resulting from exposure to weathering, moisture, chemicals or other agents in the environment in which it is placed. The result of corrosion Corrosion is an ever-present fact of life. It’s a relentless natural force of deterioration.  Corrosion results in: Destruction […]

What is cathodic protection?

The principle of Cathodic Protection (CP) is to lower the corrosion potential of a metal object. This can be done with a protective current or by using sacrificial anodes. In both cases, the metal to be protected is made cathodic and thus impervious to corrosion. Corrosion is a chemical reaction where the metal reacts and […]

What is Hydrogen induced corrosion cracking?

Hydrogen induced corrosion cracking is a corrosion mechanisms that occurs under moderate temperatures and natural environments. Alloys and high strength steels are more susceptible to this type of corrosion, but it will only occur under specific conditions. A source of hydrogen would be required and tensile stress needs to be present in the material. Sources […]

What is MIC?

The abbreviation MIC stands for Microbiologically Influenced Corrosion. This term is used for the process in which corrosion is either or both initiated or accelerated by the activities of microorganisms. Generally, this corrosion mechanism can only play a role in those situations when there is water involved. The adhesion of microorganisms on the surface area, […]