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Hard metal shield cutter WC Co MK4 1800MPα 90.0HRA for percussion bits
Description:
The shield & TBM cutter is applied to tunnel through rock no matter what kinds of ground
conditions for under road tunnel construction and subway tunnel construcation. Our company
can manufacture the tips of tunnel boring machines with high quality and competitive
price, also can customized according to the customer's requirement.
Grade and Applications:
| Grade | Density | T.R.S | Hardness | Performance & application recommended |
| g/cm3 | MPα | HRA | ||
| MK4 | 15.1 | 1800 | 90.0 | Mainly used as small buttons for percussion bits to cut soft and medium hard formations. |
| MK6 | 14.9 | 2000 | 90.5 | 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. |
| MK8 | 14.7 | 2400 | 89.7 | 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. |
| 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. |
| MK15 | 14.6 | 2450 | 87.8 | Suitable to strips, conical buttons for rotary percussion-resistant, geological prospecting buttons, cut soft and medium hard formations. |
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