Telling the difference between C2 & C5 carbide?

Have some inserts I got mixed up, anyway to tell which is which?
Reply to
Terry Keeley
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If they have no markings, but each has a distinctive appearance, one thing you can do is take a cut on some cast iron, especially if the iron is slightly chilled. The C2 will handle it in stride, while the C5 will fall on its ass quite quickly. One you identify which color is what, you can sort the lot by that feature.
Harold
Reply to
Harold and Susan Vordos
Tungsten carbide is bound with a cobalt binder; the binder is slightly magnetic, you might be able to tell C5 from C2 because the C2 has less binder (and is less magnetic).
Reply to
whit3rd
That's an interesting idea.
I just tried it with some 322 inserts, one C2 and one C5, each new, still in the container. Both appear to have the same attraction to a magnet. I lowered the magnet directly over the inserts, sitting on wood. Each was lifted to the magnet at roughly 5/16" away. If there's a difference, it's not enough to be conclusive.
Harold
Reply to
Harold and Susan Vordos

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