Archive for the “Heat Exchangers” Category


STEEL PREHEATER TUBE

Posted on April 6th, 2016 by Met-Tech

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STRESS CORROSION CRACKING AND INTERGRANULAR CORROSION OF A 316Ti STAINLESS STEEL PREHEATER TUBE Summary: A cracked 316Ti stainless steel preheater tube was analyzed to determine the failure mechanism. A second non-cracked tube section from a different elevation was also analyzed to determine the condition of the tube material. The interior of the tube carries process […]


Pitted Still Condenser Tubes

Posted on April 6th, 2016 by Met-Tech

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Failure Analysis of Pitted Still Condenser Tubes SUMMARY: Several concentrating still condenser tubes exhibiting pitting were received to determine the cause of pitting. Results indicate the tubes pitted initially from the inner diameter (ID) surface due to microbiological corrosion (MIC). MIC pitting initiated preferentially at the tube seam weld. Additional ID surface pits and significant […]

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Failure Analysis Services

Determine cause of failure & recommend ways to prevent future recurrence.

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Corrosion Investigation

Determine cause of material degradation that reduces life expectancy.

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SEM/EDS
Micro-Analysis

Verify fracture mechanism & initiation. Microstructure composition and imaging.

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Metallography Services

Reveals grain structure, thermo mechanical processing & flaw and defect characteristics.

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