PHR Chain Clamp Rockwell Hardness Tester which can test the hardness of cylindrical workpieces such as pipes, shafts, rollers accurately on-site. The test principle and accuracy comply to standard ISO 6508 and ASTM E110. Tested by National Institute of Metrology with tolorance ＜1.5HRC, equivalent to bench hardness tester. So this kind of manual Rockwell hardness tester is usually used for manufacturing inspection and acceptance inspection to replace Leeb hardness tester with lower accuracy.
 | Initial Test Force: 10kgf Total Test Force: 60kgf, 100kgf, 150kgf Force Applying Method: By Screw Indenter: 120°diamond cone Ф1.588mm carbide ball Accuracy: Meets the requirements of ISO6508， ASTM E 18 Resolution: 0.5HR Testing Range: HRA, HRB, HRC, etc. 15 scales. Application: All metals including iron, steel copper, aluminium, etc. |
