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Hard tungsten carbide alloy ball is mainly composed of tungsten cobalt alloy (wc-co) with high hardness, abrasion resistance, corrosion resistance, bending resistance, bad service environment, its wear resistance is dozens of times to hundreds of times of steel ball, can replace all steel ball products.

The Application of tungsten carbide ball
The applications of tungsten carbide balls are extremely broad, such as: precise bearing balls, instruments, meters, pen, spraying machines, pumps, machinery parts, valve seals, brake pump, extruding hole, oil, hydroelectric acid lab, hardness measuring instrument, fishing gear, with heavy, ornamented, finished, and some other high-end industry!

The characteristics of tungsten carbide ball
Tungsten carbide balls are ideal for applications. It hardness must be accompanied by high resistance to wear and impact. They are well-suited to elevated temperatures, corrosion, humidity, abrasion, and poor lubrication conditions.
hinese Grade | Equal to ISO Category Number | chemical composition | Physical mechanical properties |
Application | |||||
WC | Co | Density | Bend Strength | Hardness |
| ||||
% | % | g/Cm3 | N/mm2 | HRA |
| ||||
YG3 | K01 | 96.5-97 | 3 | 14.9-15.3 | ≥1180 | ≥91.0 | It is suitable for the finishing of cast iron, non-ferrous metals, alloys and non-metallic materials, and semi-finishing vehicles for intermittent cutting. | ||
YG6X | K10 | 93.5 | 6 | 14.8-15.1 | ≥1420 | ≥92 | Finishing of chilled hard alloy cast iron and heat resistant alloy steel and ordinary cast iron | ||
YG6 | K20 | 94 | 6 | 14.7-15.1 | ≥1600 | ≥91 | Cast iron, non-ferrous metals and alloys, non-metallic materials, medium to cutting, semi-finishing and finishing. | ||
YG8 | K20-K30 | 92 | 8 | 14.5-14.9 | ≥1600 | ≥90 | Suitable for casting of cast iron, non-ferrous metals and their alloys and non-metallic materials. | ||
YG10 | K40 | 90 | 10 | 14.3-14.7 | ≥1900 | ≥89 | It is used for large batch production and has excellent strength and toughness. | ||
YG10X | K40 | 89 | 10 | 14.3-14.7 | ≥2200 | ≥89.5 | Suitable for small diameter micro drills, end mills, rotary boring tools, etc. | ||
YG15 | K30 | 85 | 15 | 13.9-14.2 | ≥2100 | ≥87 | Forging, perforating and stamping tools for steel bars and steel tubes with high compression ratios and working under large stresses | ||
YG20 | K30 | 80 | 20 | 13.4-13.7 | ≥2500 | ≥85.5 | Stamping die, stamping watch parts, musical instrument spring piece; | ||
YG20C | K40 | 80 | 20 | 13.4-13.7 | ≥2200 | ≥82 | Production of standard parts, bearings, tools and other industries for cold heading, cold punching, cold pressing die, warhead to the shell of the stamping die | ||
YG30 |
| 70 | 30 | 12.75 | ≥2500 | ≥82.8 | High toughness | ||
The working process of tungsten carbide ball
Heat treating: This high temperature process hardens the ball.
Grinding or polishing: The ball is then ground to the approximate diameter of the finished tungsten carbide balls. This polishing process the ball to the exact size required.



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