We often find 304 pretending to be 316, but now I uncover a case of 303 posing as 304. Yeah, yeah, I know, it was twenty years ago, and we do things better now. But, if we don’t understand how such things happened, how can we be sure they won’t happen again? I suspect this […]
Tag: stress_cracking
Preliminary report on the St Savvas anchor, which failed with lethal consequences on 27th March 2026 I would like to extend my condolences to all those who were touched by this terrible event. It is my earnest intent, through the pages of Crag Chemistry, to shine a light on such wild and unexpected failures as […]
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Thailand Crags – 2
Sulphide Stress Cracking (SSC) The second part of a multi-part series For SCC see Part 1 Tonsai/Railay is where stainless-steel anchors go to die. We can now add, that the cause is SRB-mediated SSC. Introduction: I owe much to Martin Roberts of Titan Climbing for taking the initial steps of our great adventure into crag chemistry. […]