Products - Precision Balls
TUNGSTEN CARBIDE BALLS (HARD METAL)
CHEMICAL COMPOSITION: WC 94% Co 6%
Balls made of this material are used for applications requiring extreme hardness and resistance to wear and abrasion, hard shocks and impacts.
The applications include special valves, re-circulating ball bearing screws, linear bearings and balls for ball-point pens. They are also used often for mining, as pivots and points of comparators. They are also used for measurements or calibration of holes and measurement checking devices.
| Diameters | PRECISION GRADES | AVERAGE HARDNESS INDEX * |
| from mm 0,3 to mm 100 | 5-10-16-20-100 | Hra 90.5-91.5 |
Mechanical properties:*
| CRITICAL TENSILE STRENGTH: | 2600 Nm2 |
| COMPRESSION STRENGTH: | 6870 Nm2 6870 |
| MODULUS OF ELASTICITY: | 830 GNm2 |
| SPECIFIC WEIGHT: | 14,97cm3 |
CHEMICAL COMPOSITION: WC 91% Ni 9%
Special material made of nickel alloy offering the advantage of greater resistance to corrosion compared to the traditional cobalt binder material.
This material is ideal for spray nozzles, valves and flow meters. Material for applications in roller ball-point pens.
| PRECISION GRADES * | 5-10-16-20-100 |
| AVERAGE HARDNESS INDEX | Hra 88-89 |
Mechanical properties:
| CRITICAL TENSILE STRENGHT: | N/mm2 2600 |
| YOUNG MODULUS: | KN/mm2 560 |
| MODULUS OF ELASTICITY: | 14,6g/cm3 |
| SPECIFIC WEIGHT: | 14,6g/cm3 |