Tungsten Carbide Button
- Extreme hardness HRA 88–94 — far surpassing tool steel for superior rock penetration
- High transverse rupture strength (TRS) up to 2,800–3,000 N/mm² for impact resistance
- Density 14.5–15.2 g/cm³ for excellent mass and stability
- Wear resistance provides up to 30% longer service life in hard rock environments
- Multiple shapes: dome, chisel, conical, spherical, parabolic, ballistic
- Wide applications: oil drilling, mining, quarrying, tunneling, road maintenance, snow plow
- HIP sintering ensures uniform microstructure and superior toughness
Description Of Tungsten Carbide Button
Tungsten Carbide Button is a compact, high-performance wear element manufactured from tungsten carbide (WC) with a metallic cobalt binder through powder metallurgy and HIP (Hot Isostatic Pressing) sintering processes. These buttons are precisely engineered to be installed into drilling tools, mining equipment, and wear-resistant components, serving as the critical contact point that directly engages with rock, soil, or abrasive materials.
The manufacturing process begins with high-purity tungsten carbide powder mixed with cobalt binder, followed by ball milling, pressing into button blanks, and vacuum sintering at high temperatures. HIP sintering ensures a uniform, dense microstructure with minimal porosity, delivering superior mechanical properties. The buttons are then precision ground to achieve tight dimensional tolerances and smooth surface finishes.
Tungsten carbide buttons offer exceptional performance characteristics that far surpass conventional steel wear parts. With hardness values ranging from HRA 88 to 94 — significantly harder than tool steel — these buttons maintain their cutting edges and wear surfaces under extreme abrasive conditions. The combination of high hardness, wear resistance, and good impact toughness makes them the material of choice for the most demanding drilling and mining applications.
Tungsten carbide buttons are available in a wide range of shapes (dome, chisel, conical, spherical, parabolic, ballistic), sizes, and grades to meet diverse application requirements across oil drilling, mining, quarrying, tunneling, road maintenance, and snow removal industries.
Applications Of Tungsten Carbide Button
Oil and Gas Drilling: Tungsten carbide buttons are widely used in oil well drilling as the cutting structure of roller cone bits, DTH (Down-The-Hole) bits, and PDC bits. They serve as the primary rock-cutting elements, penetrating subterranean strata with high efficiency.
Mining and Quarrying: Tungsten carbide buttons are extensively used in mining tools for quarrying, coal mining, tunneling, and civil construction. They are installed in coal cutting picks, road headers, continuous miners, and other extraction equipment.
Rotary and Percussion Drilling: Tungsten carbide buttons are critical components in top hammer drills, drifter bits, and rotary exploration drills. They are used as the ball teeth of small and medium-sized impact bits.
Road Maintenance and Snow Removal: Tungsten carbide buttons are used in snow plow equipment for snow removal, as well as road maintenance and construction machinery.
Geological Prospecting and Tunneling: Tungsten carbide buttons are applied in geological prospecting, diversion tunnel excavation, and large underground power plant construction.
Wear Parts and Machine Components: Tungsten carbide buttons serve as wear-resistant inserts in various machine parts and dies subject to severe service conditions, such as high temperatures and abrasive environments.
Specifications Of Tungsten Carbide Button
| Parameter | Specification |
|---|---|
| Material | Tungsten carbide (WC) with cobalt binder |
| Hardness | HRA 88 – 94 |
| Density | 14.5 – 15.2 g/cm³ |
| Transverse Rupture Strength (TRS) | 2,200 – 3,000+ N/mm² |
| Grain Size | 0.6 – 2.0 μm (depending on grade) |
| Sintering Process | HIP (Hot Isostatic Pressing) |
| Standard Compliance | ISO 9001:2008 |
Common Grades:
| Grade | Binder Content (%) | Hardness (HRA) | TRS (N/mm²) | Recommended Applications |
|---|---|---|---|---|
| YG8C | 8 | 89.0–89.5 | 2,200 | Soft to medium formations |
| YG9C | 9 | 89.0–89.5 | 2,300 | Medium formations |
| YG11C | 11 | 88.5–89.0 | 2,500 | Medium-hard, impact applications |
| YG13C | 13 | 88.0–88.5 | 2,700 | Hard rock, high impact |
| YG15C | 15 | 87.5–88.0 | 3,000 | Extreme impact, hard rock |
| K20 | — | 89.0–90.0 | — | General mining and drilling |
| K30 | — | 88.0–89.0 | — | High-impact drilling |
| K40 | — | 87.0–88.0 | — | Extreme impact conditions |
| YK20 | — | 90.0–91.0 | — | High-wear, moderate impact |
| YK25 | — | 89.0–90.0 | — | Balanced wear and impact |