Rockwell Hardness ASTM D785, ISO 2039

Rockwell Hardness ASTM D785, ISO 2039

Rockwell Hardness test by ASTM D785, ISO 2039 evaluates indentation hardness of plastics and plastic-related electrical insulating materials. A Rockwell hardness tester is used to carry out the test. The hardness calculation is dependent on the net increase in depth of impact when a load is applied.

    Scope:

    Rockness hardness ASTM D785 test method includes two different procedures for testing the indentation hardness of plastics and plastic-related electrical insulating materials using the Rockwell hardness tester. The Rockwell Hardness Test is a hardness calculation that is dependent on the net increase in depth of impact when a load is applied. Hardness numbers have no units and are generally given in the R, L, M, E, and K scales. Higher numbers mean tougher materials.

    Test Procedure:

    A typical sample is positioned on the Rockwell Hardness Tester’s surface. The gauge is reset to zero after a small load is applied. The primary force is exerted by tripping a lever. The main load is withdrawn after 15 seconds. After allowing the sample to recover for 15 seconds, the hardness value is read off the tester dial while a slight load is still applied.

    Specimen size:

    A standard sample for the Rockwell Hardness test is 6.4 mm (0.25 inches) thickness that is either molded or cut from a sheet.

    Data:

    The different hardness value is visually recorded directly from the dial with suitable R, L, M, E or K scales. The tougher the object, the higher the number on each scale. Plastics are often measured using R and M scales.

    OUR SERVICES

    Core Materials Testing Services

    Metrology

    A variety of microscopy and spectroscopy tools available for precise measurements from the nano to the meter scale.

    Metrology Testing Services

    POPULAR TESTS:

    TEM SIMS Profilometry

    Materials Testing

    ASTM and ISO standard and custom chemical, mechanical, thermal, corrosion tests, etc. for all materials metals, ceramic or polymers.

    Materials Testing Services

    POPULAR TESTS:

    Nondestructive Testing Electrical Testing Chemistry Analysis

    Product Testing

    Thousands of tests for product quality and reliability under heat, humidity, temperature shock, vibration, drop, electrostatic discharge.

    Product Testing Services

    POPULAR TESTS:

    Vibration Testing Humidity Testing Accelerated Aging

    Looking for Material Testing?

    We have already delivered 500+ Material Tests results to top companies

      Send us a request

        Process for testing

        •  

          STEP 01

          You share material and testing requirements with us

        •  

          STEP 02

          We ensure your sample pick-up in an ensured manner

        •  

          STEP 03

          We deliver test report to your inbox

          Let’s work together!

          Share your testing requirements with us and we will be happy to assist you.

          idea icon

          Want to connect with an expert before you leave?