Reporting of ASTM E18 Hardness Results
Reporting of ASTM E18 Hardness Results
(OP)
I have a 2 part question where I am interested in how people report Rockwell hardness results for testing performed under ASTM E18:
1. When you use a modern digital tester that records hardness to 0.1 point precision, to what degree of precision do you report your results (i.e. 0.1 point or whole number)?
2. In taking bulk hardness using multiple readings, do you report individual values or the average?
1. When you use a modern digital tester that records hardness to 0.1 point precision, to what degree of precision do you report your results (i.e. 0.1 point or whole number)?
2. In taking bulk hardness using multiple readings, do you report individual values or the average?





RE: Reporting of ASTM E18 Hardness Results
RE: Reporting of ASTM E18 Hardness Results
RE: Reporting of ASTM E18 Hardness Results
If I have done 6 tests I'll report the avg, and they in (...) I'll give either the lowest or highest, depending on which would be the worst case for the situation.
One other thing is that I always report the actual test reading, and then in (...) a conversion.
Such as RC on a thin part, you would actually need to do a R30N even though the spec is in RC.
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Plymouth Tube
RE: Reporting of ASTM E18 Hardness Results
RE: Reporting of ASTM E18 Hardness Results
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( read somewhere on the internet)