ZhuZhou Better Tungsten Carbide Co., Ltd
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Yg6 Yg8 Grade Tungsten Carbide Mining Inserts For Coal Mining
1. Grade use for tungsten carbide mining inserts
| Grade | Density(g/cm3) | Hardness(HRA) | TRS(Mpa) | Application |
| YG4C | 15.13 | 90.2 | 1920 | Suitable or mininghand geological prospecting drill bits for drilling interlocked hard and soft rock formation. |
| YG6 | 14.96 | 91.1 | 2200 | Suitable fro embedding electrically driven drill bits for drilling coal formation not cotaining comon tpyrite and coal formations. |
| YG8 | 14.77 | 89.4 | 2350 | Suitable for embedding core drillong drill bits for geological prospecting, oil well drill bits and scraper drills. For drilling soft rock formations under f=8, hard and super hard rock formations, nature stone materials, bricks and concrete walls. |
| YG8C | 14.65 | 88.2 | 2560 | Suitable for embedding coal cutters for drilling medium hard and hard coal formations and hard rock formations. For drilling bits nd percussive drill bits to drill hard rock formations. |
2. Tungsten carbide mining drill inserts Details size as belows:
| Type | B | H | S | b | ɑ1° | ɑ2° |
| M1427R | 27.5 | 22 | 4.5 | 10 | 30 | 30 |
| M1427L | 27.5 | 22 | 4.5 | 10 | 35 | 35 |
| M1445R | 45 | 21 | 9 | 15 | 31 | 31 |
| M1445L | 45 | 21 | 9 | 15 | 17 | 31 |
