Hardened Honed Cylinder Chrome Plating Piston Rod for Hydraulic
As an indispensable core component in hydraulic systems, the China best-selling hardened honed cylinder with chrome-plated piston rod stands out with its exceptional durability and high-precision machining processes. Crafted from premium high-strength alloy steel, it undergoes precise honing to achieve a surface smoothness below Ra0.4μm, complemented by a uniform hard chrome plating layer of 25-50μm thickness. This delivers outstanding corrosion and wear resistance, ensuring stable extension and retraction even under high-load, high-pressure conditions, while significantly extending service life.
This piston rod is particularly suited for tie rod cylinder designs and other standard hydraulic cylinders, finding wide application in engineering machinery, agricultural equipment, industrial automation lines, and automotive lifting systems. Available in diameters from Φ20mm to Φ320mm with customizable lengths, the hardened honing process enhances sealing and friction efficiency, reduces energy consumption, and enables higher operational performance and cost savings for users.
Choose our China best-selling hardened honed cylinder with chrome-plated piston rod for reliable quality assurance and professional after-sales support. Contact us today to elevate your hydraulic systems to greater efficiency and longevity!
1. Material: CK45, SAE1045, 4140, 4340, JIS45C, 40Cr, 42CrMo
2. Diameter: Φ 6-500 mm
3. Length: max 16m
4. Chrome layer: 20 CHINAMFG (min)
5. Hardness of the chrome layer: 800HV-1150HV
6. Roughness: Ra ≤0.2u
7. Straightness: ≤ 0.2/1000
8. Diameter tolerance: ISO f7
9. Roundness: the deviation of roundness is 50% of the diameter tolerance at the most.
10. Supply condition: Hard chrome plated/ Hardened and tempered/ Induction hardened
11. Packing: Anti rust oil to be spread on rod surface and each rod to be packed in paper roll and then in wooden case.
Product Parameters
1.Hard Chrome Plated Hydraulic Cylinder Piston Rod
| Size: | OD: 40-320mm ID :30-280mm |
| Length: | 1m -9m |
| Material: | CK45/ ST52/ 20MnV6/ 42CrMo4/ 40Cr/ bearing steel/ stainless steel |
| Tolerance | ISO f7 |
| Chrome thickness: | 20~30micron |
| Hardness of the chrome layer: | 800HV (min) |
| Roughness: | Ra 0.2micron (max) |
| Straightness: | 0.2/1000mm |
| Yield Strength | ≥350 M p a |
| Tensile Strength | ≥580 M p a |
| Elongation | ≥ 15% |
| Supply condition: | 1.Hard chrome plated |
| 2.Induction hardened | |
| 3.Quenched & Tempered | |
| 4.Induction hardened with Q&T |
Technical Specification
| Product Name | Hard chrome plated Hydraulic cylinder piston rod | |
| Diameters | 6-300mm | |
| Length | 100mm-1200mm | |
|
Steel grade |
DIN CK45 JIS 45C ASTM 1045 SAE 1045 AISI 1045 |
|
| Tolerance | ISO f7 | |
| Chrome thickness | 20μm(min) | |
| Hardness of the chrome layer | 850H V(min) | |
| Roughness | Ra 0.2μm(max) | |
| Straightness | 0.2/1000mm | |
| Mechanical Properties(ck45) | Yield strength≥20Mpa Tensile strengh≥80 M p a Elongation≥5% |
|
|
Supply condition |
1.Hard chrome plated | |
| 2.Induction hardened | ||
| 3.Quenched & Tempered | ||
| 4.Induction hardened with Q&T | ||
Chemical Composition
| Material | C% | Mn% | Si% | S% | P% | V% | Cr% |
| Ck45 | 0.42-0.50 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | ≤0.25 | |
| ST52 | ≤0.22 | ≤1.6 | ≤0.55 | ≤0.04 | ≤0.04 | 0.02-0.15 | |
| 20MnV6 | 0.17-0.24 | 1.30-1.70 | 0.10-0.50 | ≤0.035 | ≤0.035 | 0.10-0.20 | ≤0.30 |
| 42CrMo4 | 0.38-0.45 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | 0.07-0.12 | 0.90-1.20 |
| 40Cr | 0.37-0.45 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | 0.80-1.10 |
Mechanical 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 |
Application
Our Products
Hydraulic cylinder Honed tube, Hard chrome plated Hydraulic cylinder piston rod
Our Service
1.Pre-Sales Service
* Biggest manufacturer & wholesaler in local market. we can produce any Chrome Plated Piston rod. According to customers’ requirement.
*One-stop collection.
*Fast delivery.
*Provide customer with best technical design of drawing service.
* Chrome Plated Piston Rod are 100% tested before package to ensure high quality,100% inspection for everyone products in each processing
2.After-Sales Service
*Arrange safety transportation by truck and by sea
*7*24 at your service, on time respond,24 hours technical support through email.
*One year guarantee after destination port arrival.
*Life-long time follow up service.
FAQ
1. Q: Are you a factory?
A: Yes, we are.
2 Q: How long is your delivery time?
A: If we have stock, we can send goods within 20days. If not, we will deliver goods within 30-45 days
3.Q: Do you provide samples? Is it free or extra?
A: Yes, the sample can be provided free of charge, but the freight will need to be borne by you
4. Q: What is your payment terms?
A: Payment=1000USD, 30% T/T in advance, balance before shipping.
5.Q: Is your product price reasonable?
A: Our offer is reasonable and realistic. It comes in line with the prevailing market.
6.Q:What is your main payment item?
A: T/T and L/C, L/C, D/P ,O/A, Western Union ,PayPal
7.Q :Which countries do you export to?
A: Russia, Argentina, South Africa, Indonesia, Vietnam, India and so on.

