Pipe Type | Specification(mm) | Tolerance Range | Hardness |
Round Pipe | 5 - 325 | Roundness +/-0.05 | HRC 63-65 |
Square Pipe | F10*10 - F300*300 | Flatness +/-0.04 | HRC 63-65 |
Rectangle Pipe | F10*20 - F120*60 | Flatness +/-0.04 | HRC 63-65 |
Material Scienc | Varieties | ||||||
Cr12Mov | From Dongbei Special Steel Co., Ltd/Daye Special Steel Co.,Ltd./Eport Standard From Big Private Company | ||||||
SKD11 | From Dongbei Special Steel Co., Ltd/Daye Special Steel Co.,Ltd. | ||||||
D2 | From Dongbei Special Steel Co., Ltd/Daye Special Steel Co.,Ltd. |
No. | Treatment Method | Roller HRC |
1 | Vacuum Heat Treatment | HRC 61-63 |
2 | Vacuum gas quenching and minus 200℃ degrees, cooling, tempering, to improve the hardness | HRC 63-65 |