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: API
#METALMARKETUPDATE – JANUARY ’23
The ISM Manufacturing Index (PMI) fell for the second straight month to 48.4 in December, following a score of 49 in November. The reading shows further contraction in factory activity,…
“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…
#METALMARKETUPDATE – DECEMBER ’22
The ISM Manufacturing Index (PMI) fell to 49 in November, the lowest mark since May of 2020. The change from October (50.2) wasn’t stark, but the reading below 50 does indicate…
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…
