These product details highlight the key specifications and characteristics of the hydraulic cylinder hollow rod, including size, length, material, tolerance, chrome thickness, hardness, roughness, straightness, yield strength, tensile strength, and elongation.
Hydraulic Cylinder Hollow Rod
Product Detail of Hydraulic Cylinder Hollow Rod:
Size: The hydraulic cylinder hollow rod is available in a diameter range of Ø 6mm to 300mm, providing options for various cylinder sizes and applications.
Length: The rod length ranges from 3m to 8m, allowing flexibility to accommodate different cylinder designs and requirements.
Material: The hydraulic cylinder hollow rod is manufactured using high-quality materials such as 45# DIN CK45, JIS 45C, ST52, 20MnV6, 42CrMo4, and 40Cr. These materials are known for their strength, durability, and suitability for hydraulic cylinder applications.
Tolerance: The rod conforms to ISO f7 tolerance standards, ensuring precision and compatibility with other cylinder components.
Chrome Thickness: The chrome plating layer on the rod has a thickness ranging from 20 to 30 microns. This chrome layer provides excellent corrosion resistance and enhances the rod's durability.
Hardness of the Chrome Layer: The minimum hardness of the chrome layer is 850HV, ensuring high wear resistance and long service life.
Roughness: The surface roughness of the rod is specified as Ra 0.2micron (max), ensuring a smooth and precise finish. This level of roughness contributes to optimal sealing and overall cylinder performance.
Straightness: The hydraulic cylinder hollow rod has a maximum straightness tolerance of 0.2/1000mm, ensuring proper alignment and smooth operation.
Yield Strength: The minimum yield strength of the rod is specified as ≥320 Mpa, indicating its ability to withstand high loads and pressures during operation.
Tensile Strength: The minimum tensile strength of the rod is specified as ≥580 Mpa, ensuring its ability to handle the forces experienced in hydraulic cylinder applications.
Elongation: The minimum elongation of the rod is specified as ≥15%, indicating its ability to withstand deformation and elongation under load without failure.
Chemical Composition
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 |
T.S N/MM2 |
Y.S N/MM2 |
E%(MIN) |
CHARPY |
CONDITION |
CK45 |
610 |
355 |
15 |
>41J |
NORMALIZE |
CK45 |
800 |
630 |
20 |
>41J |
Q + T |
ST52 |
500 |
355 |
22 |
- |
NORMALIZE |
20MnV6 |
750 |
590 |
12 |
>40J |
NORMALIZE |
42CrMo4 |
980 |
850 |
14 |
>47J |
Q + T |
40Cr |
1000 |
800 |
10 |
- |
Q + T |
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