Steel Hardness Testing Files

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

Steel hardness testing files.

It s most commonly used to check the hardness of steel that s been heat treated. Set includes six files and a chart to convert to vickers scale. If it marks the material the material is less than 65 hrc. Set includes six files and a chart to convert to vickers scale.

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. 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. 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. How to use a rockwell testing machine.

If a file cannot scratch your material then your material is harder than the file. I doubt the accuracy is any better than say plus or minus 3 to 5 rc. Run the black file 65 hrc over test material. If a file cannot scratch your material then your material is harder than the file.

The rockwell value is printed on each handle and the files range from hrc 40 through hrc 65. Tableofcontents listoffigures ix listoftables xii 1 introduction 1 2 rockwellhardnesstest 2 2 1significanceofthetest 2 2 2rockwellindentationtestprinciple 2 2. Pick out the penetrator. It is an economical way to determine the hardness of steel on the rockwell c scale handles are marked with rockwell hardness values.

It is an economical way to determine the hardness of steel on the rockwell c scale handles are marked with rockwell hardness values. 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. The hardness of your test piece will be between the softest file that left a scratch and the next step down. 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.

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