ISO Big Bore Piston Rod Hydraulic Cylinder For Pressing Machinery
Product Specifications
| Piston Rod |  |
| Size: Ø 6-300mm | |
| Length: 3m -8m | |
| Material: 45# DIN CK45/JIS 45C | |
| Tolerance: ISO f7 | |
| Chrome thickness: 20~30micron | |
| Hardness of the chrome layer: 850HV(min) | |
| Roughness: Ra 0.2micron (max) | |
| Straightness: 0.2/1000mm | |
| Mechanical properties: (CK45/JIS 45C) | |
| Yield Strength ≥320 Mpa | |
| Tensile Strength ≥580 Mpa | |
|
Elongation ≥ 15% |
|
Material |
C% |
Mn% |
Si% |
S% |
P% |
V% |
Cr% |
|
Ck45 |
0.42-0.50 |
0.50-0.80 |
0.04 |
0.035 |
0.035 |
|
|
|
ST52 |
0.22 |
1.6 |
0.55 |
0.035 |
0.04 |
|
|
|
20MnV6 |
0.16-0.22 |
1.30-1.70 |
0.10-0.50 |
0.035 |
0.035 |
0.10-0.20 |
|
|
42CrMo4 |
0.38-0.45 |
0.60-0.90 |
0.15-0.40 |
0.03 |
0.03 |
|
0.90-1.20 |
|
40Cr |
0.37-0.45 |
0.50-0.80 |
0.17-0.37 |
|
|
|
0.80-1.10 |
Mechancial Properties:
|
Material |
