Last updated 1st May 2024

ASTM E92 Standard Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials

The Vickers and Knoop indentation hardness principles are prescribed in ASTM E92, which outlines the specifications for Vickers and Knoop hardness testers and how these tests should be carried out. ASTM E92 tests are highly helpful for research and development, manufacturing process quality control, and material assessment. Despite being purely empirical, hardness is a measure of ductility and wear resistance and can be connected to tensile strength for many metals.

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    Introduction

    The ASTM E92 standard offers instructions for using indentation principles to calculate the Vickers and Knoop hardness of metallic materials. To provide precise hardness measurements, it describes the specifications for hardness testing equipment and protocols. Maintaining the integrity of the findings of hardness testing requires the validation of the Vickers and Knoop hardness testing apparatus. ASTM E92 states that verification entails evaluating the machine’s operation at each difficulty level under certain circumstances. MaTestLab is one of the best testing service providers, with the best network of testing laboratories in the USA to carry out ASTM B36 tests for our clients. By following the ASTM E92 procedure, you can make sure the machine is running properly and giving precise hardness readings. 

    ASTM E92 Test Method

    Apparatus SetupTesting Machine, Indenter, Test Specimen, and Light Optical Microscope
    Measurement of Vickers Hardness and Knoop Hardness of Metallic MaterialsUsing the indenter on the test specimen, the prescribed test force is applied. For Vickers hardness, diagonal lengths are measured; for Knoop hardness, measure long diagonals. To determine the test site and indentation size for the calculation of the hardness value, a light optical microscope is used.

    ASTM E92 Test Specimen

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    Specimen DetailsMetallic materials are used for testing.
    Specimen PreparationIt is ensured that the test surface is defect-free and perpendicular to the indenter axis.
    Specimen DimensionsMaterial with a thickness that prevents bulging or marking from the test force is used.

    ASTM E92 Test Results

    ASTM E92 testing encompasses the assessment of distinct phases or components as well as the evaluation of hardness changes in materials, particularly in thin or tiny samples. The hardness of many materials, such as metals, ceramics, and composites, is frequently measured using these tests in material science, metallurgy, quality control, and research. ASTM E92 results offer important information on the characteristics and performance of the materials. 

    Tests Related to ASTM E92 

    ASTM E92 is similar to ASTM E251 and ASTM E1949, which are the standard specifications for evaluating the performance of metallic bonded resistance using strain gages and measuring the strain gage fatigue life at room temperature uniformly, respectively.

    FAQ's

    Where can I get the astm e92 tested?

    You can share your astm e92 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm e92 test to various testing techniques.

    How much do I need to pay for the astm e92 test?

    Please contact us for a detailed quote for your astm e92 testing needs. Cost incurred to carry out different astm e92 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.

    How many samples are required for astm e92?

    The required number of samples or specimens should comply with the procedure given in the astm e92 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.

    How much discount can I get on the astm e92 test?

    MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.

    How many days will it take to complete the astm e92 test?

    The turnaround time for astm e92 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.

    Where can I get the astm e92 tested?

    You can share your astm e92 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm e92 test to various testing techniques.

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