The coating must resist corrosion even when submerged in water, which often happens in CUI scenarios (below dew point).
The coating must remain intact when the system goes from ambient to high temperature and back.
A: No. AMPP does not offer free PDFs. However, many university libraries or company technical libraries may have a copy for reference.
Knowing these details will allow me to highlight the exact coating and inspection requirements from the standard for your use case. Share public link
Includes detailed tables mapping out surface preparation requirements (e.g., NACE No. 2/SSPC-SP 10 Near-White Metal Blast Cleaning), recommended coating chemistries, dry film thicknesses (DFT), and maximum temperature limits. nace sp0198 pdf
Digital versions (PDFs) are available on engineering standards databases like ANSI Webstore and IHS Markit .
In the world of industrial asset protection, corrosion is the invisible enemy. For engineers, inspectors, and procurement managers, standards are the blueprint for defense. One of the most critical documents in the oil and gas, petrochemical, and marine industries is .
Guided Wave Ultrasonic Testing (GWUT): Scans long pipe lengths from a single fix-point.
Formulated to withstand extreme thermal shock and broad temperature swings (from cryogenic ranges up to 650°C+) without cracking or degrading. 2. Insulation Material and System Design The coating must resist corrosion even when submerged
Technical libraries often host this standard in their databases for corporate subscribers. What’s New in the Latest Revision
Before exploring the standard, it helps to understand why the document is necessary in the first place.
CUI is a pervasive issue where moisture becomes trapped between insulation and the metal surface, leading to severe localized corrosion that is often hidden from view. NACE SP0198 addresses this by adopting a , integrating five critical areas of control:
Focuses on preventing External Stress Corrosion Cracking (ESCC) caused by chlorides in the insulation. Common Systems: Specially formulated "chloride-free" coatings or TSA. Temperature Ranges: AMPP does not offer free PDFs
The NACE SP0198 standard is critical because it:
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"Control of Corrosion Under Insulation (CUI) and Corrosion Under Fireproofing (CUF) Materials—A Systems Approach."
When insulation is necessary, a high-performance coating is required as a secondary line of defense. NACE SP0198 provides guidelines for selecting coatings that can withstand:
The most aggressive corrosion occurs where the temperature fluctuates between 60 raised to the composed with power C 120 raised to the composed with power C , as water can repeatedly evaporate and condense. Surface Preparation: