| Customization: | Available |
|---|---|
| Application: | Aerospace Industry, Agricultural Equipment, Automotive Industry, Construction Industry, Marine Industry, Medical Industry, Robotics Industry |
| Certification: | CE, GS, ISO9001, RoHS |
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Precision-Engineered Pillar: Chrome Plated Piston Rods
In demanding environments where reliability cannot be compromised, our Chrome Plated Piston Rods stand as the fundamental pillar of precision engineering. Designed to excel under extreme pressure, continuous motion, and corrosive conditions, they deliver unwavering performance that powers the core of modern industry.
Beyond superior strength and corrosion resistance, our rods are the product of advanced surface treatment technologies and material science. The meticulously applied chrome plating achieves more than a brilliant finish-it creates a dense, hardened surface that significantly reduces friction, resists scoring, and minimizes maintenance downtime. This results in enhanced sealing integrity, smoother operation, and extended service life for your entire hydraulic or pneumatic system.
We serve innovators across sectors-from robust hydraulic cylinders in construction and agriculture to high-precision automation in robotics and aerospace. Each piston rod is engineered to meet specific operational stresses, ensuring optimal alignment, load capacity, and durability for your application.
Choose our Chrome Plated Piston Rods not just as a component, but as a commitment to operational excellence. Elevate your machinery's performance with the rod built to endure, perform, and lead.
| SPEC Sheet | |
| Product Name | Hard Chrome Plated Piston Rod |
| Diameter | φ6-1600mm could be customized if required, mainly φ6-300mm. |
| Length | ≤4000mm, ≤6000mm or ≤8000mm. |
| Straightness | ≤0.2mm/M |
| Material | Carbon Steel: CK45 / 50# / EN8 / ST52 / E355 / 25Mn / 20# Alloy Steel: 40Cr / 42CrMo4 / 42CrMoV4 / 50CrMo / 51CrMoV4 / 20MnV6 / 38 MnVS6 / 27SiMn / GCr15 / AISI4130 / E460 Stainless Steel: ASTM 316/316L/316Ti/S42080 / AISI 420 / CA-6NM / 630 / Nitronic 50 / 304/304L/410/431/303/310S/314/416/430/430F |
| Tolerance Grades | IT6-IT9 |
| OD Tolerance | According to ISO f7/f8/g6/h7/h8/h9, could be customized if required. |
| Ovality | Half of the tolerance ISO f7. |
| Heat Treatment | Quenched and Tempered (Hardened and Tempered) / Induction Hardening (High-frequency Induction Hardening) |
| Q+T Hardness | 220-360HB |
| I.H Hardness | 50-62HRC |
| Surface Treatment | Mainly Hard Chromed, Options: EN Plating / Zinc Plating / Laser Cladding / Nitriding / QPQ / Thermal Spraying / Ceramic Coating |
| Chromed Thickness | ≥10μm, mainly 20-30μm. Could be over 100μm according to high standard requirements. |
| Surface Hardness | 850-1150HV (Vickers 100G) |
| Hardening Depth | 0.5-3.5mm |
| Surface Roughness | Ra≤0.2μm, Rt≤2μm |
| Cohesion | No cracks, breaking or detaching after thermic shock. Warming up at 300 celsius degrees and cooling in water. |
| Porosity | Testa according to ISO 1456/1458 and result evaluation according to ISO 10289 rating 8-10. When the plated surface is checked using 10 X lens, there shall not be more than 30 micro white pin-holes in every 1000mm² area of plated surface. Further, the diameter of these micro pin-holes shall not be greater than 0.1mm approximately. |
| Corrosion Resistance | Test in natural salt spray according to ISO 9227/ASTM B117-200hours results evaluation according to ISO 10289 rating 9. |
| Weldability | Good |
| Packing | Anti Rust Oil + Cardboard Tube / Plastic Sleeve + Wooden Case |
| Limits and Fits Table | ||||||||||||
| Diameter / mm |
f7 | f8 | g6 | h7 | h8 | h9 | ||||||
| es | ei | es | ei | es | ei | es | ei | es | ei | es | ei | |
| >6-10 | -0.013 | -0.028 | -0.013 | -0.035 | -0.005 | -0.014 | 0 | -0.015 | 0 | -0.022 | 0 | -0.036 |
| >10-18 | -0.016 | -0.034 | -0.016 | -0.043 | -0.006 | -0.017 | 0 | -0.018 | 0 | -0.027 | 0 | -0.043 |
| >18-30 | -0.020 | -0.041 | -0.020 | -0.053 | -0.007 | -0.020 | 0 | -0.021 | 0 | -0.033 | 0 | -0.052 |
| >30-50 | -0.025 | -0.050 | -0.025 | -0.064 | -0.009 | -0.025 | 0 | -0.025 | 0 | -0.039 | 0 | -0.062 |
| >50-80 | -0.030 | -0.060 | -0.030 | -0.076 | -0.010 | -0.029 | 0 | -0.030 | 0 | -0.046 | 0 | -0.074 |
| >80-120 | -0.036 | -0.071 | -0.036 | -0.090 | -0.012 | -0.034 | 0 | -0.035 | 0 | -0.054 | 0 | -0.087 |
| >120-180 | -0.043 | -0.083 | -0.043 | -0.106 | -0.014 | -0.039 | 0 | -0.040 | 0 | -0.063 | 0 | -0.100 |
| >180-250 | -0.050 | -0.096 | -0.050 | -0.122 | -0.015 | -0.044 | 0 | -0.046 | 0 | -0.072 | 0 | -0.115 |
| >250-315 | -0.056 | -0.108 | -0.056 | -0.137 | -0.017 | -0.049 | 0 | -0.052 | 0 | -0.081 | 0 | -0.130 |
| >315-400 | -0.062 | -0.119 | -0.062 | -0.151 | -0.018 | -0.054 | 0 | -0.057 | 0 | -0.089 | 0 | -0.140 |
| >400-500 | -0.068 | -0.131 | -0.068 | -0.165 | -0.020 | -0.060 | 0 | -0.063 | 0 | -0.097 | 0 | -0.155 |
| >500-630 | -0.076 | -0.146 | -0.076 | -0.186 | -0.022 | -0.066 | 0 | -0.070 | 0 | -0.110 | 0 | -0.175 |
| >630-800 | -0.080 | -0.160 | -0.080 | -0.205 | -0.024 | -0.074 | 0 | -0.080 | 0 | -0.125 | 0 | -0.200 |
| >800-1000 | -0.086 | -0.176 | -0.086 | -0.226 | -0.026 | -0.082 | 0 | -0.090 | 0 | -0.140 | 0 | -0.230 |
| >1000-1250 | -0.098 | -0.203 | -0.098 | -0.263 | -0.028 | -0.094 | 0 | -0.105 | 0 | -0.165 | 0 | -0.260 |
| >1250-1600 | -0.110 | -0.235 | -0.110 | -0.305 | -0.030 | -0.108 | 0 | -0.125 | 0 | -0.185 | 0 | -0.290 |
| Chemical Composition | ||||||||||
| Material | C% | Si% | Mn% | P% | S% | V% | Ni% | Cr% | Mo% | Cu% |
| CK45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.25 | ≤0.25 | ||
| 25Mn | 0.22-0.30 | 0.17-0.37 | 0.70-1.00 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.25 | ≤0.25 | ||
| 20# | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.25 | ≤0.25 | ||
| ST52 | ≤0.24 | ≤0.55 | ≤1.6 | ≤0.045 | ≤0.045 | 0.01-0.12 | ≤0.50 | ≤0.30 | ≤0.10 | ≤0.55 |
| 40Cr | 0.37-0.44 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | ≤0.30 | 0.80-1.10 | ≤0.30 | ||
| 42CrMo4 | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | 0.07-0.12 | ≤0.030 | 0.90-1.20 | 0.15-0.25 | ≤0.030 |
| 20MnV6 | 0.17-0.24 | 0.17-0.37 | 1.30-1.60 | ≤0.035 | ≤0.035 | 0.10-0.20 | ≤0.30 | ≤0.30 | ≤0.30 | |
| 38MnVS6 | 0.34-0.41 | ≤0.80 | 1.20-1.60 | ≤0.025 | 0.02-0.06 | 0.08-0.20 | ≤0.30 | ≤0.08 | ≤0.30 | |
| Mechanical Properties | |||||
| Material | T.S | Y.S | E% | CHARPY | CONDITION |
| CK45 | 610 | 355 | 15 | >41J | Normalised |
| CK45 | 630 | 540 | 15 | >41J | Cold Drawn |
| CK45 | 800 | 630 | 20 | >41J | Q+T |
| 25Mn | 620 | 520 | 15 | Cold Drawn | |
| 20# | 520 | 400 | 15 | Cold Drawn | |
| ST52 | 500 | 355 | 22 | Normalised | |
| Q345D | 620 | 520 | 15 | >27(-20°C) | Cold Drawn |
| 40Cr | 1000 | 800 | 10 | Q+T | |
| 42CrMo4 | 980 | 850 | 14 | >47J | Q+T |
| 20MnV6 | 750 | 590 | 12 | >40J | Normalised |
| 38MnVS6 | 850 | 580 | 15 | Normalised | |











Q: Are you Manufacture or Trading Company?
A: Yes. We are manufacturer. We have more than 16 years of experience in producing hydraulic cylinder, hydraulic station, hard chrome plating rod, honed tube and etc.
Q: Can you accept customized products or equipment?
A: Yes. If you have drawings or detailed requirements, we can customize products or equipments according to your requirements.
Q: How can I know the production progress of my order?
A: We have professionals tracking the production progress. If you need to know the progress, you can contact us and we will update you promptly.
Q: Do you inspect products before shipment?
A: Yes. The third party inspection is acceptable, the inspection cost paid by buyer. Anyway, all goods will be inspected by our QC before shipment.
Q: How to transport products or equipments?
A: By sea, by air, by land or express delivery (DHL, FedEx, etc.)