Thread: Heat Treated Stainless 440C Hole Saw Shattering. HELP!
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Old 01-12-2015, 09:24 AM
Sergio Segre Sergio Segre is offline
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Join Date: Jun 2004
Posts: 73
It could be grain growth; you let the drill at 1038?C for 30 min. The drill is thin and 30 seconds should be enough
Regards
Sergio
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