ZhuZhou Better Tungsten Carbide Co., Ltd
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YG11 High Wear Resistance Tungsten Carbide Shield Cutter For Tunner
TBM cutter made from tungsten carbide material are with high hardness, good resistance,With shield driving machines using in subway,railway,highway,rock,water and electricity construction,water conservancy project municipal engineering
The tungsten carbide grade for referance
| Grade | Density | T.R.S | Hardness | Performance & application recommended | China Grade | |||||
| g/cm3 | MPα | HRA | ||||||||
| MK4 | 15.1 | 1800 | 90 | Mainly used as small buttons for percussion bits to cut soft and medium hard formations. | YG4C | |||||
| MK6 | 14.9 | 2100 | 90 | For coring crowns, electric coal drill bits, coal cutting picks, oil cone bits and scraping knife bits, usd in geological prospecting, coal mining and oil well boring. | YG6 | |||||
| MK8 | 14.7 | 2400 | 89.5 | For coring crowns, electric coal drill bits, coal cutting picks, cone drill bits and scraping knife bits, used in geological prospecting, coal mining and oil well boring. | YG8 | |||||
| MK10 | 14.7 | 2450 | 88.5 | Mostly used as the buttons of small and mediumsized percussion bits and as the inserts of rotary prospecting bits to cut soft and medium hard formations. | YG8C | |||||
| MK15 | 14.6 | 2450 | 87.8 | Suitable to strips, conical buttons for rotary percussion-resistant, geological prospecting buttons, cut soft and medium hard formations. | YK15 YG9C | |||||
| MK20 | 14.4 | 2550 | 87 | Primarily for the buttons and inserts of rotary percussion bits to cut medium-hard and hard formations. | YK20 YG10C | |||||
| MK25 | 14.5 | 2600 | 87.5 | Primarily for the buttons and inserts of rotary percussion bits to cut medium hard and very hard formations. | YK25 | |||||
| MK30 | 14.4 | 2600 | 87 | Largely for the inserts and buttons of percussion bits and tricone bits to cut medium-hard, hard, and very hard formations. | YG11C | |||||
| MK40 | 14.2 | 2650 | 86.5 | Predominatly for the buttons of tricone bits and inserts of rotary percussion bits to cut hard and vey hard formations. | YK40 YG13C | |||||
| MK50 | 14 | 2700 | 86.5 | For oil cone drill bits, for medium soft and medium -hard rocks. | YG15C | |||||
| MK60 | 14 | 2500 | 87.5 | Good strength and less wear resistance, for bits of rotary hammer rock drills and heavy rock drills, for hard and very hard rocks. | YG15 | |||||
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