Reply to "valve identification"

huskerMember

I thought PH was precipitation hardening.

quote:
Originally posted by Daniel_Jones:
> Stainless steel is non-magnetic

There are various types of stainless steels: ferritic, martensitic, austenitic,
and PH (phase-hardenable) with a wide range of differing properties. Some are
magnetic, some aren't. Some rust, some don't. In general, austentic alloys
are relatively non-magnetic when compared to martensitic or ferritic alloys.
Austenitic alloys are formed by adding nickel or manganese (or a similar
face-centered element). I've had two batches of the same part number valves
and one batch was magnetic and the other wasn't.

Dan Jones

2/6/068:33 AM

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