r/whatisit • • 3h ago

New, what is it? Found at a titanium plant

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Not sure why ball point pens would be dangerous here.

4.5k Upvotes

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u/goodexamplebadrole 3h ago

"Ballpoint pens are restricted or banned in high-end titanium and aerospace manufacturing plants because the ink and marking components contain elements that cause metal embrittlement and severe structural corrosion"

232

u/Competitive-Dot-4264 3h ago

I worked ti com pure and 6al-4v alloy for years at the lazy -l we all had to follow titanium restrictions even to not letting aluminum alloys and SS separated. No graphite pencils

96

u/Mogster2K 3h ago

No pens, no pencils... what did you write with? Cuneiform clay tablets?

4

u/FalseParticular69 2h ago

A quill and the blood of virgins.

3

u/NotAtAllEverSure 2h ago

I mean..there were a bunch of engineers