Steel Hardness Testing Files

If a file can scratch your material then your material is softer than the file.

Steel hardness testing files.

Each of the files is of a different hardness so it is possible to roughly gage hardness by which ones cut and which ones don t. People with experience using them say they can usually guess the hardness to within a couple of rc points by the way the hard file feels when scratching a piece. Pick out the penetrator. Conveniently packaged in a leather like case with a velcro lined flap the files are approximately 157 in diameter and 7 in length 4 3ø x 175mm.

Tableofcontents listoffigures ix listoftables xii 1 introduction 1 2 rockwellhardnesstest 2 2 1significanceofthetest 2 2 2rockwellindentationtestprinciple 2 2. Set includes six files and a chart to convert to vickers scale. The rockwell value is printed on each handle and the files range from hrc 40 through hrc 65. If a file cannot scratch your material then your material is harder than the file.

It is an economical way to determine the hardness of steel on the rockwell c scale handles are marked with rockwell hardness values. Flexbar hardness testing files easy to use portable rockwell hardness testing system for use in all metalworking facilities. Six color coded files indicate hardness from 40 to 65 hrc. It s most commonly used to check the hardness of steel that s been heat treated.

If a file cannot scratch your material then your material is harder than the file. How to use a rockwell testing machine. It is an economical way to determine the hardness of steel on the rockwell c scale handles are marked with rockwell hardness values. If a file can scratch your material then your material is softer than the file.

Usually soft materials like 1018 mild steel will use the rockwell b scale which makes use of a 1 16 rounded steel penetrator with a 100 kg major load. Run the black file 65 hrc over test material. That said this is about as good as the cheap bounce testers and a lot more flexible in use part doesn t have to be massive flat shaped etc. Flexbar introduces a unique new set of six specially shaped files each with a non slip grip color coded handle.

I doubt the accuracy is any better than say plus or minus 3 to 5 rc.