Cheap Diamond penetrator hardness tester...
Cheap Diamond penetrator hardness tester...
(OP)
Looking for a cheap vickers type hardness tester, 80-220 D.P.N. range, part size is 3/8" dia prepped section and 3/8" thin wall tube, 70-30 cartridge brass.
It can be VERY cheap, as long as it is repeatable, ie. simple stage, penetrator, dead weight, separate microscope and scale. Any suggestions?





RE: Cheap Diamond penetrator hardness tester...
It is questionable if such a machine can be Calibrated and Certified per ASTM or equivalent.
Or you may wish to look for used and rebuilt equipment properly calibrated.
http://www.welding-advisers.com/
RE: Cheap Diamond penetrator hardness tester...
That is it. Just something simple, open setup, not necessarily certifiable (ASTM-E384, I think). Or, if there is something old, manual, surplus, etc., that would work also. Thanks.
RE: Cheap Diamond penetrator hardness tester...
The load is 2.5 Kg.
RE: Cheap Diamond penetrator hardness tester...
If this is just a comparison could you just use the appropriate Rockwell scale. This is a fine instrument for hollow components such as tubes pipe.
RE: Cheap Diamond penetrator hardness tester...
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RE: Cheap Diamond penetrator hardness tester...
Thanks Goahead and unclesyd.
I have determined that the 15 T range would be appropriate. However, those rockwell testers shown on your ref. site cost more new than an older Rockwell Superficial Benchtop Tester. One bench top rig went on E-Bay for less than $500 the other day, older, but had all the goodies. I should have gotten it.
[he said while kicking himself]