GE 8651831G1 roughness specimens have been (historically) very popular in the measurement of surface texture. They show up in a lot of places… in documents and standard operating procedures, as well as for sale on eBay and industrial supply resellers.
Many of these specimens have been in use for a long, long time and definitely have some wear and tear.
But how good are they in today’s terms? We put a full set of well-used specimens under the ZeGage lens and are happy to share the datasets with you. They are interesting in several ways:
- for exploring the certified roughness values (expressed in “microinches”) on the certificate.
- for exploring various types of surface damage including deposits as well as scratches.
- for exploring the slope and spacing differences for surfaces which are said to have the “same” roughness values.
Measured via Zygo ZeGage Plus (2.75x)
Data source: Digital Metrology
How to cite
If you use this dataset, please reference it as follows:
Digital Metrology Solutions. “Surface Library.” Digitalmetrology, digitalmetrology.com/dataset/ge-roughness-specimen-j2. Accessed Dec 09, 2023.