Corrosion and Corrosion Control
an endless battle against nature
Principle of Magnetic Flux Leakage (MFL) A magnetic flux leakage (MFL) inspection is the type of in-line inspection technology in which a magnetic saturation is induced in the pipe wall between two poles of a permanent strong magnet. The pipe…
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Atmospheric corrosivity categories for coating systems selection by ISO 12944 Corrosivity category Service environment (Exterior) Service environment (Interior) C1 very low Heated buildings with a clean atmosphere C2 low Atmosphere contaminated to a small extent, mainly rural regions. Buildings which…
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Attaching of cathodic protection cable by pin brazing and aluminothermic weld (Cadweld) Brazing is the process of joining metal by heating the base metal to a temperature above 800°F and adding a nonferrous filler metal that melts below the base…
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Corrosion related surface defects for stainless steel Iron Contamination Iron contamination is probably the most significant corrosion related surface defect for stainless steel. The carbon steel particles can be easily picked up through steel lay yard, cutting, forming rolls, steel…
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AC corrosion became a known issue since more and more pipelines are sharing ROW with HVAC transmission lines. It is caused by the metal loss due to AC current leaving the pipeline. There are three different types of AC interference,…
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