HRA, HRB, HRC, HV, HB
77 – 266 Kg/cm2
Operation 32 °F to 104 °F (0 °C to 40 ° C)
Storage -4 °F to 122 °F (-15 °C to 50 ° C)
Work Time: 6 Hours per charge
Full Charge Period: 2 Hours
Automatically records up to 1000 test results, includes native Rockwell readings, converted readingss and averages.
7.9” x 4.3″ x 1.8” (200mm x 110mm x 46mm)
The portable package is meant to test parts in the field. It contains the following accessories:
The column-stand package is meant to test parts on a desktop. It contains the following accessories:
Rockwell hardness tester use for determining hardness of metallic material. The E 18-03 standard established by ASTM is a detailed description of the Rockwell Hardness testing method.
A 120 degree angle diamond or 1/16” (1.588mm) diameter hard steel ball indenter is pressed into the test piece surface with a preliminary force P0 (10kgf) at a depth D0. Then, a main force P1 is added until the total test force, P = P0 + P1, is 60kgf for HRA, 100kgf for HRB and 150kgf for HRC, and the indenter increases to a depth D2. Then, the preliminary force P0 is unloaded, and the indenter decreases to a depth D1. This results in a depth difference, e = D1 – D0, measured in units of 0.002mm. The hardness reading for HRA and HRC is 100-e, and for HRB is 130-e.