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Codes & Standards
Understanding API 570 for In-Service Piping Inspection
What API 570 actually requires for inspection intervals, thickness measurement, and repair — summarized for day-to-day use.
Latest Notes
Fresh from the field and the inspection reports.
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Cathodic Protection
Impressed Current vs. Sacrificial Anode CP: How to Choose
A practical comparison of the two CP methods, with a simple decision checklist and anode-life considerations.
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Damage Mechanisms
MIC & Under-Deposit Corrosion: Spotting the Signs Early
How microbiologically influenced corrosion develops, where to look for it, and mitigation options that actually work.
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Calculations
Remaining Life & Corrosion Rate: Worked Example
Step-by-step remaining-life calculation from two thickness readings, plus a downloadable spreadsheet.
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Inspection & NDT
Building a Risk-Based Inspection (RBI) Program from Scratch
A starter framework for API 580/581 RBI — data you need, how to rank risk, and setting inspection intervals.
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Materials
Material Selection for Sour & Wet H2S Service
Key considerations for HIC/SSC-resistant materials, hardness limits, and NACE/AMPP MR0175 basics.