KD grade
- Fine-grain Cemented Carbide
- For grinding process
- KD05・KD10・KD20・KD40
Use by many semiconductor manufactures for stamping lead frames.
| Application | Mold for electronic parts. |
|---|---|
| Characteristic | Extremely strong and hard with superior wear and chipping resistance through use of fine particle WC. |
Comparison of Chipping Resistance
Profile grinding test: #400 whetstone, 0.02 mm cut x3
Physical Properties
| Our grades | Hardness(HRA) | Transverse rupture strength(GPa) | Co amount(％) |
|---|---|---|---|
| KD05 | 92.0 | 3.2 | 8 |
| KD10 | 91.0 | 3.4 | 10 |
| KD20 | 90.0 | 3.7 | 13 |
| KD40 | 88.0 | 3.7 | 19 |
| Reference：G2 | 91.0 | 2.5 | 8 |
| Reference：G3 | 90.0 | 2.7 | 8 |
Comparison result of profile grinding test
