"Wear with 416"

Question:

"I have recently sampled a gear pinion to a customer and have been advised that the pinion can not be used due to high wear. The original pinion was made from 416SE and the proposed pinion was made from 416. Does anyone have any idea why the wear rate on the 416 would be higher then the 416SE?"

Answer:

There's something more here than "meets the eye". There is nothing in the chemistry of the two alloys that would explain why one alloy is more wear resistant than the other. Other variables, not explicitly stated, that could influence wear rates include surface hardness and relative loadings. I suspect that you need to dig deeper.

 

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