| Hard-facing Materials--->>
Tungsten Carbide Pellet(YQ) |
|
|
1. Sintered W-Co Tungsten Carbide pellets
2. Used as the material for built-up welding.The hardness,wear
resistance and corrosion resistance of the surface of the
machined parts can be subsatintially improved
3. Particle size:ranged from 250 microons to 2.4mm(American
standard)
|
|
| Grade & Chemical Compositions |
| Chemical
compositions(%) |
| |
Co |
T.C≤ |
F.C≤ |
O≤ |
Ti≤ |
Fe≤ |
| YQ3 |
6.5～7.2 |
5.4 |
0.1 |
1.0 |
0.5 |
0.5 |
| YQ4 |
3.5～4.0 |
5.5 |
0.1 |
1.0 |
0.5 |
0.5 |
|
| |
| Microstructure & Physical Properties
|
| Physical
properties |
Alloy
microstructure |
|
|
|
Density(g/cm3) |
Hardness(HV)
(Load 100g) |
Porosity≤ |
Uncombined
Carbon≤ |
Microstructure≤ |
| YQ3 |
14.5～15.0 |
≥1300 |
A04 B04 |
C04 |
Without
decarboniza-tion, whthout Co agg-regation |
| YQ4 |
14.9～15.35 |
≥1400 |
A04 B04 |
C04 |
|
