Below are general answers on how to choose a hardness tester from the list of GAO Tek’s hardness testers. To facilitate our customer’s selection of our products, we have further classified our hardness tester by their features: alarm, auto-recognition-of-impact-device, data-storage, installable-software, multi-angle-testing, preset-limit-settings, thermal printer, user-material-function, and pen-type.

We have products in stock and can ship overnight to most places in the U.S. and Canada.

If you have any questions about our products or want to place an order, our technical experts can help you. Please fill out this form or email us.

 

Understanding Hardness Testers:

  • A hardness tester is a device used to measure the resistance of a material to indentation or penetration.
  • It provides a quantitative measurement of a material’s hardness, which is a crucial property in various industries such as manufacturing, construction, and engineering.
  • Hardness testing helps determine the suitability of a material for a particular application, as harder materials are generally more resistant to wear, deformation, and abrasion.

Types of Hardness Testers:

  • Rockwell Hardness Tester: Measures the depth of penetration of an indenter under a large load (major load) compared to the penetration made by a preload (minor load).
  • Brinell Hardness Tester: Measures the diameter of an impression created by a hard ball under a specific load.
  • Vickers Hardness Tester: Measures the size of an impression created by a diamond indenter under a specific load.
  • Knoop Hardness Tester: Measures the size of an impression created by a pyramidal diamond indenter under a specific load.

Hardness Scales:

  • Consider the hardness scales that are most suitable for your materials and applications. Common scales include Rockwell, Brinell, Vickers, and Knoop.
  • Ensure that the hardness tester you choose supports the relevant hardness scales for your testing needs.

Load and Indenter Selection:

  • Select a hardness tester that offers a range of loads and indenters to accommodate different materials and hardness ranges.
  • Consider the size and shape of the indenter, as well as the range of loads available, to ensure compatibility with your samples.

Accuracy and Precision:

  • Look for a hardness tester with high accuracy and repeatability to ensure reliable and consistent results.
  • Check the specifications and performance data of the hardness tester to verify its accuracy and precision.

Ease of Use:

  • Choose a hardness tester with a user-friendly interface and intuitive controls for ease of operation.
  • Consider features such as automated testing procedures and digital displays for convenient and efficient testing.

Durability and Build Quality:

  • Ensure that the hardness tester is built to withstand the rigors of regular use in your testing environment.
  • Look for features such as a sturdy frame, durable components, and protective measures against dust and debris.

Software and Data Management:

  • Consider if the hardness tester offers software for data analysis and management.
  • Look for features such as data logging, reporting tools, and compatibility with data storage devices for efficient data management.

Calibration and Maintenance:

  • Check the calibration requirements of the hardness tester and ensure that calibration procedures are straightforward and well-documented.
  • Consider the availability of calibration services and support from the manufacturer.