W-20 Webster hardness tester can be used to test the hardness value of aluminum alloy, pipe, plate, aluminum parts, and other soft metals. Judge whether the aluminum products have the aging or not, and determine the limitation is up to standard. It also can distinguish between different types of aluminum and different aging state. Webster hardness testers especially suitable for batch production site and sales site, also for the aluminum profile, door, window, curtain, wall and so on to do the quick testing and non-destructive checking one by one.
Simple Operation. Webster hardness tester is easy to operate, just clamp the work piece, and then read the hardness value directly.
High Standard. It focus on high efficiency and good reliability which conform to the China non-ferrous YS/T420-2000 and American standard ASTM B647-84 (2000).
Stability. Stability of full scale value, calibration point stability, pointer no "crawl".
| W-20 / W-20a / W-20b | |
| Testing Range | 0-20 HW (equivalent to 25~110 HRE) |
| Resolution | 0.5 HW (5 ~17 HW) |
| Repeatability Error | 0.5 HW (5 ~17 HW) |
| Weight | 0.5 kg |
| Standard Assembly | Optional Accessories |
| Tester | Indenter |
| Standard Hardness Block | Standard Hardness Block |
| Spare Indenter | Dial Glass |
| Calibration Wrench | Anvil Cap |
| Small Screwdriver | |
| Dial Assembly | |
| Carrying Case |
| Model Selection | |||
| Type | Applicable Materials | Hardness Range | Specimen Size/mm |
| W-20 | Aluminum alloy | 25-110 HRE 58-131 HV | Thickness 0.6-6 Inner diameter>10 |
| W-20a | Thickness 0.6-13 Inner diameter>10 | ||
| W-20b | Thickness 0.6-8 Inner diameter>6 |
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