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Material List
KD50
JIS standard: VF-70
Features
This grade has the highest chipping resistance among our fine-grain carbide grades, and is suitable for crushing/grinding applications.
This grade's impact resistance and fracture toughness is higher than KD40 due to higher Co content, however wear resistance is reduced by three ranks.
Equipments using KD50
| Crusher |
Applications of KD50
| Crushing blade |
Parts manufactured with KD50
| Recycling of food waste and plastic bottles |
Properties of KD50
| Abrasion resistance | Chipping resistance |
| Impact resistance |
Carbide products using KD50
Other characteristics
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 |
| KD30 | 89.0 | 3.7 | 16 |
| KD40 | 88.0 | 3.7 | 19 |
| KD50 | 84.5 | 3.0 | 28 |
| Reference: G3 | 90.0 | 2.7 | 8 |
| Reference: G2 | 91.0 | 2.5 | 6 |
Relation between wear-resistance and machining property for KD grade
Chipping-resistance characteristics
Comparison result of profile grinding test
Hardness and TRS
Fracture toughness value
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