High Quality Down the hole rock driling tools cemented carbide TBM cutters
We can design and produce different bits according to different hardness of rock to satisfy customer’s different requirements, meanwhile we also can help our customers to design, produce and repair all kinds of cutter drums.
| Grades | Density(g/cm³) | Hardness (HRA) | T·R·S (N/mm2) | Application |
| YG4C | 15.00 | 89.5 | 1800 | Mainly used as small buttons for percussion bits and as the inserts of rotary prospecting bits to cut soft, medium-hard formations. |
| YG6 | 14.80 | 90.0 | 1700 | Mainly used as the buttons of small and medium-sized percussion bits and as the inserts of rotary prospecting bits to cut soft, medium-hard formations. |
| YG8 | 14.70 | 88.5 | 2200 | Mainly used as the buttons of small and medium-sized percussion bits and as the inserts of rotary prospecting bits to cut soft, medium-hard formations. |
| YG8C | 14.70 | 88.0 | 2300 | Mainly used as the buttons of small and medium-sized percussion bits and as the inserts of rotary prospecting bits to cut soft, medium-hard formations. |
| YG9C | 14.60 | 87.0 | 2400 | Mainly used as the inserts and buttons for rotary-percussive bits, coal-cutting bits and tri-cone bits to cut medium-hard and hard formations. |
| YG11C | 14.40 | 86.5 | 2450 | Mainly for the inserts and buttons of heavy rock drill bits and rotary-percussive bits, coal-cutting bits and tri-cone bits to cut medium-hard and hard formations. |
| YG13C | 14.30 | 86.0 | 2500 | Mainly used as the inserts and buttons of tri-cone bits rotary-percussive bits and heavy rock drill bits to cut medium-hard and hard formations. |
| YG15 | 14.20 | 86.5 | 2500 | It is stronger, and is mainly used as the inserts and buttons of rotary-percussive bits, heavy rock drill bits to cut hard and very hard formations. |
| YG16 | 14.10 | 85.5 | 2600 | It is mainly used for making cemented carbide substrate tips to be used in PDC cutters for excavating coal and oil field PDC bits. |
| YG20 | 13.70 | 85.0 | 2800 | Mainly for the stamping dies used in the conditions of heavy impact load and large stress. |
