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Physical and mechanical properties of grades for tungsten carbide gripper inserts for chuck jaws
Grade | ISO | DENSITY (g/cm3) | TRS (N/mm²) | HARDNESS (HRA) | APPLICATION |
YG8C | K30 | 14.7 | 2200 | 88 | 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. |
YG11 | K40 | 14.3 | 2100 | 88 | Largely for the inserts and buttons of percussion bits and tricone bits to cut medium-hard ,hard and very hard formations. |
YG11C | K40 | 14.35 | 2200 | 87.6 | Largely for the inserts and buttons of percussion bits and tricone bits to cut medium-hard ,hard and very hard formations. |
YG10C | K40 | 14.45 | 2450 | 87.6 | Primarily for the buttons and inserts of rotary percussion bits to cut medium hard and hard formations. |
YR10D | K40 | 14.5 | 2700 | 87.8 | Coarse grain-size carbide,Suitable for road,coal mining and Construction drilling bit. |
YN10 |
| 12.85 | 2800 | 86.8 | For making precussion bits,drilling bits for medium wear resistance requirement. |
YN20 |
| 11 | 2600 | 88 | For making tungsten carbide glass plates for high pressure of cement reinforced concrete. |
YZ10D | K40 | 14.35 | 2600 | 87.5 | Coarse grain-size carbide,Suitable for road,coal mining and Construction drilling bit. |
Application of tungsten carbide gripper inserts for chuck jaws






Q1 : Are you Factory or trading company ?
We are Factory with 25 years of production experience.
Q2: Where is your factory located ?
We are located in Taizhou city, Zhejiang province where is 4 hour away from
Shanghai ,One hour away from Ningbo and wenzhou City by train.
Q3: Is the price Competitive?
We have our own Factory. Thanks to strong production and distribution system, we
promise to offer our customers the most competitive price.
Q4: Are the products High Quality?
Yes. All products will be tested before bulk production, and we will check the
physical properties, shape and tolerance for ensuring qualified products before
shipping.
Q5: How to place an order of tungsten carbide gripper inserts for chuck jaws?
1. Fill your Order List in our online Inquiry System.
(Also you can directly contact our salesperson by E-mail / Skype / Whats App)
2. We will make a feedback to you ASAP after receive your order list.
Q6: How we can trust your company ?
We support Aliababa trade insurance , 100% products quality protection, 100%
on -time shipment protection, 100% payment protection for your covered
amount.
Q7: What’s your delivery time ?
For the normal type which we have mold it takes 7-15 days after receiving the
advance payment.
For the non standard which we do not have mold it takes 15-35 days after receiving
the advance payment.

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