MC20
- Special Grade
- For stamping pure iron and copper
Outstanding resistance to adhering and wear.
This material has specific improved performance compared to ordinary materials, and it has the ability to solve many problems today.
With its long lifespan, you can lower your material costs. Give this material a try.
| Application | Metal molds for soft metal processing (amount of cutting edge abrasion after shot is 1/6 the amount of conventional G Grade materials) |
|---|---|
| Characteristic | This newly developed material for soft metal (native iron, copper) processing controls the affinity with soft metals through the use of special WC, low Co, and strengthened Co phase. It offers superior abrasion and corrosion resistance. |
Physical Properties
| Our grades | Hardness (HRA) | Transverse rupture strength (GPa) | Co(％) |
|---|---|---|---|
| MC20 | 90.5 | 2.8 | 6 |
| Reference：G3 | 90.0 | 2.7 | 8 |
*The values are representative and are not guaranteed
Usual material problem
Affinity between Co in cemented carbide and soft metals
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Displacement of Co in the cemented carbide
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Damage of Mold
■Comparison of reaction to Copper ( Analysis of EPMA)
This shows a cross section of the test sample where a copper thread was inserted in the middle of the powder and HIP was carried out after sintering
・The graph shows the density of the copper
The copper shows a white area in the middle of the MC20, showing that MC20 controls the diffusion of copper better than G grade materials.