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Choosing Stainless Steel

We’ve been asked recently why surgical instruments generally aren’t manufactured from 440 stainless steel, which is a good question. 440 would generally be used for cutlery, swords, it can also be hardened up to 58 Rockwell, making it much harder than the higher of the 420 range stainless steels that are normally used for surgical instruments.
I think the main

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