W-20
Webster Hardness Tester Portable Hardness Tester Clamp Hardness
Tester Webster's Stainless Steel Hardness Tester
W-20 Aluminum Alloy Webster Hardness Tester (also known as the
clamp-type hardness tester) is a lightweight, on-site instrument
that can quickly test the hardness of aluminum alloys. The test is
rapid, simple, and one card can be used. The hardness value can be
read directly. It conforms to the China Nonferrous Metals Standard
YS/T420 and American Standard ASTM B647. It is one of the two
instruments recommended by the standard YS/T420.
Main functions and features:
1. The Webster hardness tester is suitable for testing profiles,
tubes and plates. It is particularly suitable for the rapid and
non-destructive inspection of product hardness at the production
site, sales site or construction site.
2. The standard hardness block is tested by the standard hardness
machine;
3. Webster hardness value can be converted into commonly used
Vickers, Rockwell, Brinell hardness and tensile strength values;
Main purpose and application:
1. Determine whether the workpiece heat treatment, check the heat
treatment effect
2. Determine whether the workpiece is not processed by the
appropriate alloy
3. Test inconvenience to the laboratory's long, heavy workpiece or
assembly
4. For production inspection, acceptance inspection and quality
supervision and inspection
Technical parameters:
1. Range: 0-20HW
2. Accuracy: 0.5HW
3. Measuring range: equivalent to Rockwell hardness 20 ~ 110HRE;
Models:
| Model | Sample size/diameter(mm) | N.W.(Kg) | G.W. (Kg) | Package size(mm) |
| W-20 | Thickness≤6 plate Internal diameter≥10 pipe | 0.5 | 1.1 | 280×230×80 |
| W-20a | Thickness≤13 plate Internal diameter≥10 pipe | 0.5 | 1.1 | 280×230×80 |
| W-20b | Thickness≤8 plate Internal diameter≥6 pipe | 0.5 | 1.1 | 280×230×80 |
Standard configuration:
| Main part | 1 | Standard hardness block | 1 |
| Spare needle | 1 | Calibration wrench | 1 |
| Small screwdriver | 1 | Instrument box | 1 |
Optional parts:
1. Needle
2. Standard hardness block
