What Sinn "Tegimenting" actually is.

Hard Time - a component journey

https://www.bodycote.com/component-journeys/hard-time/index.html

www.bodycote.com

"Tegiment" is a Sinn marketing word (latin for shell/armour). The actual technology is from Bodycote, a UK company, and known as S3P (Specialty Stainless Steel Processes) which itself is based on the kolsterising process invented by Dutch professor Bel Kolster in the 1980s.