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Hardness Test Services

IQS Directory provides an extensive list of hardness calibration services. Utilize our website to review and source hardness calibration services with our easy-to-use features which allow you to locate hardness calibration services that will provide hardness testing for your exact specifications. Our request for quote forms make it easy to connect with leading hardness calibration services. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right service whether you are looking for mineral hardness test, rock hardness tests, or hardness tests calibrations.

  • West Conshohocken, PA 610-825-3310

    For over 40 years, Strainsert Company has been an industry leader in manufacturing calibration services. Our goal is to provide calibrating services that are thorough and accurate, and we have experience serving a variety of applications. Our team of engineers can find a solution to your application, no matter how stringent your demands. Contact us today and let us know how we may assist you.

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  • York, PA 866-843-0081

    Morehouse is an experienced leader in force and torque measurement helping to create a safer world. We use our knowledge to provide solutions including accurate measurement data and data analysis software. The goal is to help customers make better measurements which can make the difference between success or failure of everyday technology. We offer ISO/IEC 17025 accredited calibrations accurate to 0.002 percent of applied force up to 120,000 lbf and 0.01 percent up to 2,250,000 lbf.

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  • Littleton, MA 978-742-9032

    HITEC's calibration services are the result of 45 years of research and engineering. We take the time to benefit our customers in a variety of ways. It is our goal to provide our customers with the tools they need to succeed. We believe that the key to our success is by benefiting you in as many ways as possible. You can learn more about our products and services by contacting us today for more info!

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  • Indian Trail, NC 800-898-5325

    Unrivaled for over 30 years, Furness Controls’ precision hardness tests have served a wide range of customers. Furness Controls’ quality measurement devices include various handling applications, multi-function fluid measurement instrumentation & ultra low range differential pressure micromanometer micro-processors & much more. Please call Furness Controls today.

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  • Morristown, TN 866-521-3823

    In today’s quality conscious world, agencies are setting stricter guidelines for testing procedures & maintenance. Precision Calibration Systems has been helping its customers meet these ever changing codes since our foundation! Precision Calibration Systems’s professional Technicians are able to recalibrate your machinery on-site or in their modern lab facilities. For hardness tests you can trust, call Precision Calibration Systems today.

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  • More Hardness Test Companies

businessIndustry Information

Hardness Test

A hardness test is performed to determine the hardness of a material by examining how well it resists deformation. This information is beneficial because indentation hardness correlates linearly with tensile strength, which is a material’s resistance to the force that tears it apart.

Hardness tests are also frequently called indentation tests. During these tests a tool is used to force an impression on the surface of the material; generally, one material is used to scratch another material or a series of materials. These tests are mostly done on metal or stone. The results are compared and examined. Sometimes bending, scratching, cutting, abrasions or penetration is used to evaluate hardness as well. Hardness tests can be done manually by a worker using a sharp tool to gouge at the material's surface or it can be performed by a machine. Hardness cannot be automatically determined by calculating the fundamental units of mass, length and time. Instead, a hardness value is the result of a certain procedure that provides accurate responses instead of estimations. The Mohs Scale ranks materials on their ability to resist scratching by another material, one of the most common, basic and longest known techniques of taking a hardness test. The results of hardness tests are used as basis for the comparison of materials, heat treatment, quality control and more. This is necessary knowledge for industrial and manufacturing companies to determine materials and specifications for parts and products.


Hardness tests usually measure the depth or area of an indentation left by a tool of a specific shape with a certain force applied to it for a period of time. There are three main testing methods that use this basic procedure. One of the most common is the Rockwell hardness test which uses a small steel ball for soft material or a diamond cone for harder surfaces. The depth of penetration is measured automatically by the machine and displayed as a Rockwell hardness number. Another widely used method is the Brinell test. It also uses a steel ball which averages 10 millimeters in diameter. The Brinell hardness number (BHN) is closely related to the tensile strength of the material; this test, like the Rockwell, is simple, fast and does not destroy the product being tested. The Vickers test can be a microhardness test; that is, the indentations made during the testing process are so small that a microscope is required to take a measurement. On the other hand, a macroindentation can be seen with the unaided eye. The Vickers hardness test uses a triangular shaped tool to impress a pyramidal shape into the material if the metal or stone surface will allow it. Like other calibration services, hardness testing provides data and numerical discrepancies between samples; however, unlike machine or speedometer calibration the strength of the material cannot be quickly adjusted but rather must be reformulated or recreated.


Hardness Test
Hardness Test
Hardness Test - Inspec, Inc.
Hardness Test - Inspec, Inc.