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Different materials have varying degrees of hardness, which refers to resistance to permanent indentation from an applied force. A hardness tester is a device that measures how a material responds to localised penetration by an indenter. The testing machine provides an empirical evaluation of certain qualities, such as wear resistance, strength and ductility. In most cases, the machine indents the material by applying a predetermined amount of force for a particular time. Testers are not all the same, which means the measuring process is not either. Six main hardness tests exist – Brinell, Vickers, Mohs, Shore, Rockwell and Knoop. The type of material to test determines the appropriate device to use. A material’s expected hardness, density, brittleness, flatness and smoothness are several factors to consider when choosing a tester. Innovatest provides four main kinds of testers – Vickers, Knoop, Rockwell and Brinell. A closer look at each one explains how they work. Our product range also includes universal testers. All hardness testers are up to ASTM and ISO standards. What are the benefits of a hardness tester?Hardness testers are instruments that measure hardness, which is a material’s resistance to plastic deformation from an indentor. The hardness of a material is important to determine because it is an indication of the material’s strength and what it is capable of. Hardness testers are used in a variety of industries, including metallurgy, engineering, and quality control. There are several different types of hardness testers, each of which uses a different method to measure hardness. The most common type of hardness tester is the Rockwell hardness tester. This type of hardness tester uses a penetrator that is forced into the surface of the material being tested. The depth of penetration is then measured to determine the hardness of the material. Other types of hardness testers include Brinell hardness testers and Vickers hardness testers. |
Frequently asked questions
What are the main types of hardness testers available?▼
There are six main hardness tests: Brinell, Vickers, Mohs, Shore, Rockwell, and Knoop. Innovatest provides four primary types: Vickers, Knoop, Rockwell, and Brinell, each suited for different materials and applications.
How do hardness testers measure material hardness?▼
Hardness testers measure a material's resistance to permanent indentation by using an indenter. The machine applies a predetermined force for a specific time, and the depth of penetration determines the hardness value of the material.
What factors should I consider when choosing a hardness tester?▼
Consider the material's expected hardness, density, brittleness, flatness, and smoothness. The type of material you need to test also determines which appropriate device to use for accurate results.
What industries use hardness testers?▼
Hardness testers are used across metallurgy, engineering, and quality control industries. They help determine material strength and capability, making them essential for evaluating wear resistance, strength, and ductility.
Are Innovatest hardness testers compliant with standards?▼
Yes, all Innovatest hardness testers meet ASTM and ISO standards, ensuring reliable and consistent measurement across different applications and industries.

