| Grade | Densityg/cm3 | T.R.S MPa | HardnessHRA | Performance & Application recommended |
| YL10.2 | 14.50 | 3400 | 92.5 | Qualified for low speed rough machining,milling,titanium alloy and refractory alloy,espercially for cut-off tool and sick prick. |
| YG11C | 14.40 | 2260 | 87.5 | Qualified for molding the drills for heavy-duty rock drill:detachable bits used for deep hole drilling,rock drill torlley etc. |
| YG6X | 14.90 | 1560 | 91.0 | Qualified for machiningof chilled cast iron,alloy cast iron,refractory steel ana alloy steel.Also qualified for the machining of common cast iron. |
| YS2T | 14.45 | 2800 | 92.5 | Qualified for low speed rough machining,milling,titanium alloy and refractory alloy,espercially for cut-off tool and sick prick. |
| YG15 | 14.10 | 2400 | 86.5 | Used for punch dies,stamping dies and wear resistance parts. |
| YK15 | 14.60 | 2600 | 88.0 | tungsten carbide tip Suitable for embedding rotary percussive drill bits of light rock drilling machines for drilling soft to medium rock formations of class f=14-15 |
| YK15.6 | 14.60 | 2700 | 87.6 | tungsten carbide tip Suitable for embedding rotary percussive drill bits of light rock drilling machines for drilling medium to hard rock formations of class f=14-15 |
| YK20 | 14.52 | 2800 | 87.3 | tungsten carbide tip Suitable for embedding rotary percussive drill bits of medium rock drilling machines for drilling medium to hard rock formations of class f=15-18 |
| YG11C | 14.35 | 2850 | 87.0 | tungsten carbide tip Suitable for embedding rotary percussive drill bits of heavy rock drilling machines for drilling hard rock formations of class f=18 or above. |
| YK25.6 | 14.58 | 2650 | 87.5 | carbide tip With a uniqe structure, it has a longer lifetime and drilling speed. It is suitable for embedding rotary drill bits of medium drilling machines for drilling medium hard and rather hard rock formations of class f=14-16 |
| YK20.2 | 14.45 | 2700 | 88.0 | carbide tip combines the advantages of the wear resistance of YK15.6 and toughness of YK20 with rather good stability. The product is suitable for drilling rock formations of class 15-17 after application on a scale in Chenzhou,Hunan and Gansu, etc., with a good drilling speed as compared with the same category of products. |
| YK020 | 14.50 | 2650 | 87.3 | carbide tip is an economical grade and it is suitable for embedding rotary percussive drill bits after application on a scale in Gansu and Shandong, etc. And it is suitable for drilling rock formations of class 11-13 with a good ratio of performances and prices. |
| YG4C | 15.13 | 1920 | 90.2 | carbide tip Suitable for geological prospecting and coal mining drill bits for drilling interlocked hard and soft rock formations, hand holding or shelf electrically driven drills for mining for drilling coal stong & hard and super hard coal formations. And for making auger tips for coal cutters. |
| YG6 | 14.95 | 2200 | 89.5 | carbide tip Suitable for embedding electrically driven drill bits for drilling coal prospecting, oil well drill bits and scraper drills, for drilling soft rock formations under f=8, hard and super hard coal formations. For drilling nature stone materials, bricks and concrete walls. |
| YG8 | 14.74 | 2350 | 89.0 | carbide tip Suitable for embedding core drilling drill bits for geological prospecting, oil well drill bits and scraper drills, for drilling soft rock formations under f=8, hard and super hard coal formations. For drilling nature stone materials, bricks and concrete walls. |
| YG8C | 14.69 | 2850 | 87.5 | carbide tip Suitable for embedding coal cutters for drilling medium hard & hard coal formations and hard coal formations with horse under f=14, For drilling nature stone materials, bricks and concrete walls. |
| YK20.3 | 14.67 | 2380 | 88.7 | carbide tip Suitable for geological prospecting and coal mining drill bits for drilling interlocked hard and soft rock formations, hand holding or shelf electrically driven drills for mining for drilling coal stong & hard and super hard coal formations. And for making auger tips for coal cutters. |
| YG4C | 15.13 | 1920 | 90.2 | carbide tip Suitable for geological prospecting and coal mining drill bits for drilling interlocked hard and soft rock formations, hand holding or shelf electrically driven drills for mining for drilling coal stong & hard and super hard coal formations. And for making auger tips for coal cutters. |
| YG6 | 14.95 | 2200 | 89.5 | carbide tip Suitable for embedding electrically driven drill bits for drilling coal prospecting, oil well drill bits and scraper drills, for drilling soft rock formations under f=8, hard and super hard coal formations. For drilling nature stone materials, bricks and concrete walls. |
| YG3X | 15.3 | | 92 | For finishing of cast iron non-ferrous metal |
| YG6A | 14.8 | | 91.5 | For drawing dies and wood wooking tools |
| YG8 | 14.6 | | 89.7 | For drawing dies or milling of cast iron |
| YW1 | 13 | | 91 | For semi-finishing and finishing of stainless steel |
| YW2 | 12.9 | | 90.5 | For machining of train's wheel hubs |
| YT15 | 11.3 | | 91.5 | For semi-finishing and finishing of stainless steel |
| YT14 | 11.4 | | 90.5 | For semi-finishing and finishing of stainless steel |
| YT5 | 12.8 | | 89.5 | For heavy duty rough tuming of steel |
Main Products: Rods For Drill Bits
Business Type: Manufacturer
Zhuzhou Hunan China
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