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Piston rods
Specifications
| Diameters | 6-300mm | ||||
| Length | 3000-8000mm | ||||
| Stee grade | 45# DIN CK45/JIS 45C | ||||
| Tolerance | ISO f7 | ||||
| Chrome thickness | 20μm(min) | ||||
| Hard of the chrome layer | 850HV(min) | ||||
| Roughtness | Ra o.2μm(max) | ||||
| Straightness | 0.2/1000mm | ||||
| Mechanical properties (CK45/JIS 45C) | Yield strength ≥320Mpa | ||||
| Tensile strength≥580Mpa | |||||
| Elongation≥15% |
Material of chemical composition(%):
| Material | C% | Mn% | Si% | S% | P% |
| CK45 | 0.42-0.5 | 0.5-0.8 | 0.04 | 0.035 | 0.035 |
| ST52 | 0.22 | 1.6 | 0.55 | 0.035 | 0.04 |
Mechanical property:
| Material | N/MM2 T.S | N/MM2 Y.S | Elongation(M|N) | CHARPY | CONDITION |
| CK45 | 610 | 355 | 15 | >41J | NORMALIZE |
| CK45 | 800 | 630 | 20 | >41J | Q + T |
| ST52 | 500 | 355 | 22 | NORMALIZE |
For more details,please feel free to contact me.Sincerely hope we can have cooperation in the near future.
