Maybe....


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Posted by Gordon on Friday, April 23, 2004 at 5:24AM :

In Reply to: Do a Spark Test to determine Material posted by Paul(in NY) on Thursday, April 22, 2004 at 5:26PM :

Sparking it should be able to identify the material, but it's hard to be sure.

Some cast irons have (almost) exactly the same CHEMICAL signature as some steels, the big difference is in the PHYSICAL structure (rolled, forged, quenched, tempered, whatever) giving very small grain size and linear orientations rather than just the 'random' orientation of a casting.

Gordon



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