FWIW, the wording on the box sounds funny. It says that the part is "manufactured from bar stock steel." It does not say "made from bar stock" or "machined from bar stock", which would be the normal way of saying that it was made by milling from bar stock.
I suspect word play here and some intentional deception. "Bar stock steel" can be any kind of steel alloy that is available in round or square bars, which really means about any steel, say 1040 steel. 1040 steel can be available in bar stock, so it could be called "bar stock steel." But that steel can also be forged and machined, cast and machined, or formed by MIM. So, if 1040 is available as "bar stock steel" then an MIM part made from 1040 steel is "manufactured from bar stock steel."
Jim
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