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The right selection of. cemented carbide grades is one of the most important factor that guarantee the effective application of cemented carbide. Attention should be paid to the following when the selection of the grades is done:
The properties of the rock formations, such as hardness, frictional characteristics, and their con such as compactness, joints, caverns, etc. The basic principle is : the harder the formation of rocks to be drilled, the much tougher the mining inserts should be. They, however, should not be too soft, and that is to say their wear resistance should not be too low, since it will increase the consumption of cemented carbide and reduce the ef in the drilling as well.
Grade | ISO Code | Physical and mechanical properties | ||
Density g/cm3 | Hardness No Less Than HRA(HV) | TRS No Less Than (Mpa) | ||
YG4C |
| 15.13 | 90.2 | 1920 |
YG6 | K20 | 14.95 | 89.5 | 2200 |
YG8 | K30 | 14.74 | 89 | 2350 |
YG8C | K30 | 14.69 | 87.5 | 2850 |
YK20.3 |
| 14.67 | 88.7 | 2380 |






Various packing methods, or packing as customer's requirements

Jintai Cemented company is a manufacture of tungsten carbide products.
Over 17 years experience, and have good reputation
$1.4 million registered capital, 1000 square meters of new factory
With advanced techniques and technology; professional technician and design team.
Our products have export over than 3000 units every year, about 89 countries around the world

Q: Are you trading company or manufacturer ?
A: We are manufacturer with 17years experience in Tungsten carbide industry. Supply ability can reach to 20tons per month. We can provide various type of products according to your requirements.
Q: How long is your delivery time?
A: Generally,it will take 7 to 25 days after order confirm.The specific delivery time depends on the items and the quantity of your order.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
For saving your precious time, Please provide us the following information in advance:
1. grade
2. type
3. dimensions of each type
4. blanked or polished procuts
5. Any special requirements for the products

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