Portable hardness testing for aluminum alloys ranging from the 1100 to 7075 series.
The Webster® Model B Tester is designed to measure the hardness of aluminum alloys from the 1100 to the 7075 series.
The 20 graduations on the Webster® dial indicator cover the range between 25 and 110 on the Rockwell E Scale.
The graphs below illustrate the hardness range covered by the Webster® Model B Tester. The graph lines were developed from numerous tests conducted on a variety of aluminum alloys and represent an average performance curve.
Production lots may vary in their work-hardening characteristics. Therefore, some readings may not fall precisely on the indicated curves.
Webster® Model B hardness range and conversion reference.
Average hardness curves for various aluminum alloy series.
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