Production Range：
●0.2MM-101.6MM
Production Grade:
● Up to G10
Applications：
●Valve balls ● Punching balls
● Extruded balls ● Bearing balls
Tungsten carbide balls are manufactured by EDE using micron-level carbide (WC, TIC) powders of high-hardness refractory metals as the primary component, combined with cobalt (Co) or nickel (Ni) and molybdenum (Mo) as binders. They are sintered in a vacuum furnace or hydrogen reduction furnace.
Features:
1. High hardness: The carbide alloy boasts a hardness of up to 86-93HRA, equivalent to 69-81HRC, enabling it to maintain exceptional wear resistance in various applications.
2. Excellent wear resistance: Even under high temperatures (such as 500°C) and extreme conditions, the carbide alloy maintains its hardness and wear resistance, exhibiting good hot hardness (capable of maintaining 60HRC up to 900-1000°C).
3. Good strength and toughness: Not only does the carbide alloy possess high hardness, but it also exhibits a certain degree of strength and toughness, allowing it to perform well under impact and vibration.
4. Heat and corrosion resistance: The carbide alloy possesses excellent heat and corrosion resistance, enabling it to operate stably in harsh environments for extended periods.
| Cemented Carbide | ||||
| Material | Chemical composition(%) | Density | Hardness | |
| Wc % | Co% | （g/cm3） | （HRA） | |
| YG6 | 94 | 6 | 14.6-15.0 | 89.5 |
| YG6X | 94 | 6 | 14.6-15.0 | 90.5 |
| YG8 | 92 | 8 | 14.5-14.9 | 89.5 |
| YG10 | 90 | 10 | 14.3~14.7 | 88.5 |
| YG15 | 85 | 15 | 13.9~14.2 | 87 |
| Material | Chemical composition(%) | Density | Hardness | |
| Wc % | Ni% | （g/cm3） | （HRA） | |
| YN6 | 94 | 6 | 14.8-15.0 | 90.5 |
| YN9 | 91 | 9 | 14.6-14.8 | 89.5 |
| YN12 | 88 | 12 | 14.2-14.4 | 86.5 |
| DIN 5401-2002 | ||||||||
| Dimensional and formt tolerance and surface roughness | ||||||||
| Grade | Nominal Size | Limit deviations | tDws | ∆RSw(≤) | Ra(≤) | VDwL(≤) | IG | Preferred gauges values |
| VDws (≤) | ||||||||
| (mm) | (μm) | (μm) | (μm) | (μm) | (μm) | (μm) | (μm) | |
| G 3 | 0 ~ 12.7 | ± 5.32 | 0.08 | 0.08 | 0.01 | 0.13 | 0.5 | -5 ~ +5 |
| G 5 | 0 ~ 12.7 | ± 5.63 | 0.13 | 0.13 | 0.014 | 0.25 | 1 | -5 ~ +5 |
| G 10 | 0 ~ 25.4 | ± 9.75 | 0.25 | 0.25 | 0.02 | 0.5 | 1 | -9 ~ +9 |
| G 16 | 0 ~ 25.4 | ± 11.4 | 0.4 | 0.4 | 0.025 | 0.8 | 2 | -10 ~ +10 |
| G 20 | 0 ~ 38.1 | ± 11.5 | 0.5 | 0.5 | 0.032 | 1 | 2 | -10 ~ +10 |
| G 28 | 0 ~ 50.8 | ± 13.7 | 0.7 | 0.7 | 0.05 | 1.4 | 2 | -12 ~ +12 |
| G 40 | 0 ~ 100 | ± 19 | 1 | 1 | 0.06 | 2 | 4 | -16 ~ +16 |
| G 80 | 0 ~ 100 | ± 14 | 2 | 2 | 0.1 | * | 4 | -12 ~ +12 |
| G 100 | 0 ~ 150 | ± 47.5 | 2.5 | 2.5 | 0.1 | 5 | 10 | -40 ~ +40 |
| G 200 | 0 ~ 150 | ± 72.5 | 5 | 5 | 0.15 | 10 | 10 | -60 ~ +60 |
| G 300 | 0 ~ 25.4 | ± 70 | 10 | 10 | 0.2 | * | 20 | -60 ~ +60 |
| G300 | 25.4 ~ 50.8 | ± 105 | 15 | 15 | 0.2 | * | 30 | -90 ~ +90 |
| G 300 | 50.8 ~ 75 | ± 140 | 20 | 20 | 0.2 | * | 40 | -120 ~ +120 |
| G 500 | 0 ~ 25.4 | ± 75 | 25 | 25 | * | * | 50 | -50 ~ +50 |
| G 500 | 25.4 ~ 50.8 | ± 112.5 | 25 | 25 | * | * | 75 | -75 ~ +75 |
| G 500 | 50.8 ~ 75 | ± 150 | 25 | 25 | * | * | 100 | -100 ~ +100 |
| G 500 | 75 ~ 100 | ± 187.5 | 32 | 32 | * | * | 125 | -125 ~ +125 |
| G 500 | 100 ~ 125 | ± 225 | 38 | 38 | * | * | 150 | -150 ~ +150 |
| G 500 | 125 ~ 150 | ± 262.5 | 44 | 44 | * | * | 175 | -175 ~ +175 |
| G 600 | all | ± 200 | * | * | * | * | * | * |
| G 700 | all | ± 1000 | * | * | * | * | * | * |
