These tungsten carbide balls, reinforced by a cobalt binder slightly superior to the usual standard (7-9 %), offer notable robustness. Their design favours virgin material, although their mechanical characteristics and corrosion resistance are slightly lower than conventional models. Marteau-Lemarie, with 40 years of expertise, guarantees you a quick availability from our stock in France.
Chemical composition of tungsten carbide ball with co TC K30 binder
| Element | type | WC | Co |
|---|---|---|---|
| % | WC30 | 91,00-93,00 | 7,00-9,00 |
Physical characteristics of tungsten carbide ball with co TC K30 binder
| Ownership | Value | Unit |
|---|---|---|
| Density | 14.7 | g/cm3 |
| Young Module | 630 | GPA |
| Thermal expansion coefficient | 6 (DT=0-100°C) | × 10−6 /°C |
| Thermal conductivity | 82 | W/m·K |
| Electrical resistivity | 175 | × 10 - 9 D·m |
| Specific heat | 227 | J/kg·K |
| Relative magnetic permeability | max 12 | — |
| Magnetic behaviour | Slightly ferromagnetic | — |
Hardness and mechanical resistance of tungsten carbide ball with co TC K30 binder
| Ownership | Value | Unit |
|---|---|---|
| Hardness | 89,5-91,0 | HRA |
| Hardness | 1480-1700 | HV |
| Exercise temperatures | -196/500 | ° C |
| Exercise temperatures | -320,8/932 | °F |
Available diameters and grades for tungsten carbide ball with co TC K30 binder
| Parameter | Value |
|---|---|
| Minimum diameter | 0.2 mm — 1/64′′ |
| Maximum diameter | 127 mm — 5′′ |
| Grades available | G5-10-16-20-25-28-40-60-100 |
| Precision standards | ISO 3290 / AFBMA |
Corrosion resistance of tungsten carbide ball with co TC K30 binder
As a general rule, tungsten carbides with Co binder have good corrosion resistance if they are immersed in basic solutions, whereas they do not resist in acidic solutions.
International Standards for Tungsten Carbide Ball with Co TC K30 Bin
| type | ISO | USA (AISI) | GB (CHN) |
|---|---|---|---|
| WC30 | K30 | C2 | YG8 |
Applications of tungsten carbide ball with co TC K30 binder
Special and hydraulic precision valves, couplers, flow meters, vaporizers, ball recirculation screws, high load and linear bearings, utensils, sliding guides, ball pen tips, pivots and pointers for comparators, precision measuring instruments, medical instruments. Employees in the maritime, mining, oil and currency industries.
