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05-14-2008 | 07:53 AM

#130

DarZeelon

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From: Rosh-HaAyin, ISRAEL

RE: Piston Damage

Quote:

ORIGINAL: Sport_Pilot

I donno, but nickel is very hard.

Is it, Hugh?

Please see the Rockwell C column [link=http://www.metal-mart.com/Guides/Hardness_Nickel.htm]here[/link], for nickel alloys.
Also the bottom table [link=http://www.steelmedia.com/chrome-steel-balls.htm]here[/link], for AISI 52100 and EN 31 bearing steels.

The flaked nickel particles would be pulverized...

For that matter, chromium (true ABC) has a Rockwell C hardness rating of 68-74...

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