Reply to "Chrome plating"

cab (Guest)

A good automotive plater will know what Hidrogen embrittlement is, I have been dealing with it for some time on automotive parts. As a general rule do not plate structural parts that are hardened past HRC 39. H.E. will mainly occure on samples in tension and the hydrogen that is trapped in the plating process will migrate to the grain boundries of the steel in the tensilly loaded areas, making them brittle. Post baking is done to cook out the hydrogen. The thicker the plating, the higher the hardness, the longer the bake.

10/31/058:44 AM

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