Henan Yizhi Machinery Co., Ltd
Focus on transmission parts and drive your mechanical system better
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Material: 17CrNiMo6
Die Forging Steel
Material with UT Inspection
Quenching & Tempering
Rough Machining
Fine Machining
Gear Hobbing
Heat Treatment
Gear Grinding
Ineternal Hole Grinding
Inspection
Packing
Gear Teeth Grinding Work can help improve the gear teeth quality
Enhance the roughness of the gear teeth surface
Gear teeth gridning can help reduce the noise level
The Quality grade can ≤ ISO 1328 6 Grade
| Products | Helical Gears |
| Custom Made | √ |
| Material | Foring Steel |
| Gear Teeth manufacturing | Gear Grinding |
| Gear Teeth Grinding | √ |
| Module | 6 |
| Pressure Angle (α) | 20° |
| Helix Angle (β) | 0° |
| Teeth Accuracy Grade | ISO 7 Grade/ AGMA 11Grade |
| Heat Treatment | Carburizing |
| Surface Hardness | 58-62 HRC |
| STEEL CODE GRADES COMPARISON | |||||
| CHINA/GB | ISO | ГΟСТ | ASTM | JIS | DIN |
| 45 | C45E4 | 45 | 1045 | S45C | CK45 |
| 40Cr | 41Cr4 | 40X | 5140 | SCr440 | 41Cr4 |
| 20CrMo | 18CrMo4 | 20ХМ | 4118 | SCM22 | 25CrMo4 |
| 42CrMo | 42CrMo4 | 38XM | 4140 | SCM440 | 42CrMo4 |
| 20CrMnTi | 18XГT | SMK22 | |||
| 20Cr2Ni4 | 20X2H4A | ||||
| 20CrNiMo | 20CrNiMo2 | 20XHM | 8720 | SNCM220 | 21NiCrMo2 |
| 40CrNiMoA | 40XH2MA/ 40XHMA | 4340 | SNCM439 | 40NiCrMo6/ 36NiCrMo4 | |
| 20CrNi2Mo | 20NiCrMo7 | 20XH2MA | 4320 | SNCM420 | |
