Tungsten carbide buttons grade:
| Grade | Co(%) | Density (g/cm³) |
Hardness (HRA) |
TRS (N/mm²) |
Recommended Use |
| BM06 | 6 | 14.95 | 90.3 | 2800 |
DTH Hammers, medium to hard rock |
| BM65 | 6.5 | 14.90 | 90.0 | 3000 | |
| BM08 | 8 | 14.8 | 88.7 | 3200 | |
| B510 | 10 | 14.55 | 88.1 | 3300 |
Roller cone drill bits |
| B411 | 11 | 14.45 | 88.8 | 3200 | |
| B512 | 12 | 14.35 | 87.3 | 3200 | |
| BCK1 | 10 | 14.50 | 85.7 | 2400 |
Road milling bits, mining |
| BCK3-S | 6.5 | 14.85 | 87.5 | 2200 | |
| YH13 | 13 | 14.25 | 88.7 | 3500 |
PDC Substrate |
| YH16 | 16 | 13.90 | 86.6 | 3200 |
Carbide button sizes：
|
Type |
Basic size(mm) | ||
| diameter(ΦD) | height(H) | radius of sphere(SR) | |
| BTQ08212ABT15 | 8.2 | 12 | 4.2 |
| BTQ09213ABT17 | 9.2 | 13 | 4.6 |
| BTQ10214BT20 | 10.2 | 14 | 5.2 |
| BTQ11215BT21 | 11.2 | 15 | 6.0 |
| BTQ12217BT18 | 12.2 | 17 | 6.6 |
| BTQ13219BT20 | 13.2 | 19 | 6.7 |
| BTQ14322BT10 | 14.3 | 22 | 7.2 |
| BTQ16324ABT30 | 16.3 | 24 | 8.8 |
| BTQ18327BT33 | 18.3 | 27 | 9.2 |
| BTQ19225D20 | 19.2 | 25 | 9.6 |
| BTQ202280EBT35 | 20.2 | 28 | 10.2 |
| BTQ22230EBT35 | 22.2 | 30 | 11.2 |
Tungsten carbide button workmanship details:
Tungsten carbide button applications:
Tungsten carbide buttons types and sizes:
FAQ for tungsten carbide buttons:
Q1: What are tungsten carbide buttons?
A: They are sintered cemented carbide wear-resistant inserts, composed of tungsten carbide (WC) hard phase + cobalt (Co) binder. They feature ultra-high hardness (87–94 HRA), balanced impact toughness and abrasion resistance, and act as core consumables for rock drilling, mining, road milling and oil tricone bits.
Q2: What industries & tools use carbide buttons?
A: Mining: Top hammer drill bits, DTH bits, coal shearer picks
Construction: Road milling cutters, rock breaking picks, foundation drilling bits
Quarry & Tunneling: Blasthole drill bits, raise boring tools
Oil & Gas: Tricone roller cone bits, well drilling wear inserts
Q3: Why do buttons crack or chip quickly in drilling?
A: Root causes & solutions:
Improper low-toughness grade with low cobalt content: Switch to high-impact grades YG13C, YG15 .
Overheating during brazing: Control heating duration and use heat insulation fixtures.
Improper drilling parameters (excessive percussion pressure): Reduce impact frequency when drilling fractured hard rock.
Uneven load caused by adjacent worn dull buttons: Inspect drill bits regularly and replace severely worn inserts in time.
Q4: What’s the minimum order quantity (MOQ)?
A: Standard stock sizes normally require 5kg MOQ. Non-standard customized shapes require higher MOQ to cover mold & sintering cost.
Q5: What’s your production lead time?
A: Stock ground plates: 2–3 working days.
Standard custom carbide plates: 10–25 days
Please send us inquiries for quotations and free samples for testing:
