Seal vs. Strength Welds
Heat exchanger tube end welds can be specified as strength welds or seal welds. What is the difference? The tube to tubesheet joint is a critical component of the exchanger…
Tag: heat exchangers
“It’s Supposed To Be Screwed Up” – #MetalMarketUpdate (December 2022)
We sometimes ask ourselves “why are there so many problems?!” in our daily work efforts. Perhaps the better question to ask ourselves is “how do I navigate the challenges in…
Collar Studs in Heat Exchangers
What are collar studs, and when are they used? Collar studs are threaded studs with a larger central hub attached (see diagram). They are commonly used on exchangers with removable…
Field Repair Work: The Human Factor
This is likely the toughest expectation of all to “manage” when it comes to work in the field. From sleep deprivation to problems at home; from disagreements with co-workers to…
Fatigue Analyses
When a vessel (or part of a vessel) is subjected to pressure loads that repeatedly cycle from low to high, the fatigue life of the vessel may need to be…
#METALMARKETUPDATE – NOVEMBER ’22
The ISM Manufacturing Index (PMI) continued to decline in October, registering a 50.2 reading from the 50.9 level in September. The new orders metric contracted for the fifth consecutive month, possibly…
