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Webster Hardness Tester

Webster Hardness Tester is a portable instrument which can perform on-site hardness testing on soft materials. By a quick and easy test, the hardness value can be read out directly with a simple clamp, in accordance with American Standard ASTM B647.



       

 

Measuring Range 0–20HW (Equivalent to 20–110 HRE, Model W–20)
Resolution 0.5 HW
Accuracy 0.5 HW
Hardness Range in Rockwell scale 25–110HRE, 58–131HRV
Specimen Dimension (mm) Thickness 0.4 – 6; Inner diameter > 10