1. Use 100% virgin raw material. 2. ISO9001. 3. From China National Key University. 4. High quality and favorable price.

Grade	Properties			Application
	Density       (g/cm³)	Hardness   (HRA)	TRS             (Mpa)
YJ0	14.40-14.50	86.0-86.9	≥2800	Rotating rock drill; Rock drill tool for good toughness; TBM cutter; Hardness of the stratum is f>14;
YJ0.1R	14.40-14.45	86.8-87.5	≥2800
YJ1.1R	14.55-14.65	87.5-88.4	≥2800	Rotating rock drill; Rock drill tool for good toughness; TBM cutter; Hardness of the stratum is f=12~14;
YJ2.1R	14.60-14.80	88.2-88.9	≥2800	Rotating rock drill; Rock drill tool for good wear-resistance; roller bit; DTH drilling bits;TBM cutter; button bits; Hardness of the stratum is f=8~12;
YJ2.2R	14.60-14.80	88.8-89.5	≥2800
(*f is protodyakonov scale of hardness)

Good quality drill carbide