Grain Size E112
Grain Size E112
(OP)
Hello all
What does the number ASTM Grain size 0, 1, 2 signify?
Does it signify number of grain boundraies the examiner can see in a given unit length (Say Micron)?
What does the number ASTM Grain size 0, 1, 2 signify?
Does it signify number of grain boundraies the examiner can see in a given unit length (Say Micron)?





RE: Grain Size E112
N = (log n/log 2)+ 1.0000
where n is the number of grains per square inch at 100x
It used to be compared visually with published charts, but modern software is available that can calculate and return ASTM Grain Size Number.
Regards,
http://www.welding-advisers.com/
RE: Grain Size E112
RE: Grain Size E112
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdo/