Superficial Rockwell Hardness Tester

Model Number: HT-20/HT-20T/HT-21/HT-22 Key Specifications/Special Features: Order number:HT-20, HT-20T: Opening size 25x25mmHT-21: Opening size 50x50mmHT-22: Opening size 100x50mmApplication1. Tests thin shaft >φ2 mm with V anvil2. Tests small ball >φ2.5 mm with ball testing anvil3. Tests small and irregular stampings with small supporting surface using slim raised spot anvil4. Tests tin plate and cold-rolled sheet using HT-20 and diamond raised spot anvil5. Tests thin-wall slim pipes >φ4.8 mm (HT-20T)Features:1. Tests the superficial hardness of metals
2. The test principle and accuracy comply to standard ISO6508
3. With the bench stand it can be used on the desk as well as on site
4. Tests the hardness of thin plates, slim tubes, thin shafts, small balls and small stampings, workpieces with small supporting surface as well as parts requiring small indentation, replacing Vickers hardness tester
5. It is used for finished workpiece non-destructive hardness test directly
The small indentation is acceptable to most workpieces
Technical parameter:
1. Initial test force: 3kg
2. Total test force: 15kg, 30kg, 45kg (for HT-20T 15kg only)
3. Indenter: 120°diamond cone; φ1.588mm carbide ball, φ1.5288mm steel ball (HT-20T only)
4. Accuracy: meets ISO 6508, ASTM E18
5. Resolution: 0.5HR
6. Testing ranges: HRN, HRT, HRW, HRX, HRY, and more 15 scales
7. Application: all metals including iron, steel copper, aluminum, Zinc, lead, tin, carburized steel, nitrided steel and more