订单号：
HT-20，HT-20T：开口尺寸25x25mm
HT-21：开口尺寸50x50mm
HT-22：开口尺寸100x50mm
应用
1.用V型砧测试细轴>φ2mm
2.用球测试砧测试小球>φ2.5mm
3.使用纤薄的凸点砧，测试具有小支撑表面的小的和不规则的冲压
4.使用HT-20和金刚石凸点砧测试镀锡板和冷轧板
5.测试薄壁细管>φ4.8mm（HT-20T）
特征：
1.测试金属的表面硬度
2.测试原理和精度符合ISO6508标准
3.使用台架，可以在桌子上和现场使用
4.测试薄板，细管，细轴，小球和小冲压件的硬度，具有小支撑表面的工件以及需要小压痕的零件，更换维氏硬度计
5.直接用于成品工件的无损硬度试验
小凹痕对于大多数工件是可接受的
技术参数：
初始试验力：3kg
2.总试验力：15kg，30kg，45kg（HT-20T 15kg）
3.压头：120°金刚石锥体; φ1.588mm硬质合金球，φ1.5288mm钢球（仅HT-20T）
4.精度：符合ISO 6508，ASTM E18
5.分辨率：0.5HR
6.测试范围：HRN，HRT，HRW，HRX，HRY等15个量表
7.应用：所有金属，包括铁，钢铜，铝，锌，铅，锡，渗碳钢，氮化钢等

Order number:
HT-20, HT-20T: Opening size 25x25mm
HT-21: Opening size 50x50mm
HT-22: Opening size 100x50mm
Application
1. Tests thin shaft ﹥φ2 mm with V anvil
2. Tests small ball ﹥φ2.5 mm with ball testing anvil
3. Tests small and irregular stampings with small supporting surface using slim raised spot anvil
4. Tests tin plate and cold-rolled sheet using HT-20 and diamond raised spot anvil
5. 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