EAST AI Hydraulic Manufacturer
Since 2006
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The 20MnV6 ID Not Honed Hollow Chrome Plated Rod is a precision-engineered hollow piston rod made from 20MnV6 steel, a material known for its excellent machinability, high tensile strength, and uniform microstructure.
This product features a hollow interior to reduce overall weight while maintaining rigidity, making it ideal for long-stroke hydraulic cylinders and mechanical systems that require both strength and efficiency.
The inner diameter (ID) is not honed, meaning it retains the original bore finish from the drilling process — suitable for non-sealing applications or when the internal surface finish is not critical.
Hollow Chrome Plated Rod
EAST AI
20MnV6
Max. 15m
f7/f8/g6,etc
≤0.2/1000 mm
Hydraulic cylinders for mobile equipment, industrial machinery, and heavy-duty systems
Anti rust oil to be spread on rod surface and each rod to be packed in paper roll and then in wooden case,can be customised according to customer requirements
≤0.2u
Product Description
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.17–0.23 |
| Manganese (Mn) | 1.30–1.70 |
| Silicon (Si) | 0.10–0.35 |
| Vanadium (V) | 0.07–0.12 |
| Sulphur (S) | ≤ 0.035 |
| Phosphorus (P) | ≤ 0.035 |
This composition provides 20MnV6 with a perfect balance between strength, impact resistance, and machinability, making it one of the most popular steels for hydraulic piston rods and mechanical shafts.
EASTAI’s 20MnV6 ID Not Honed Hollow Chrome Plated Rod is manufactured using high-precision machining and advanced chrome plating technology.
Main Features:
High Tensile Strength: Ideal for medium and heavy-duty hydraulic applications
Good Machinability: Allows for easy cutting, threading, and drilling
Weight Optimization: Hollow structure reduces mass while maintaining rigidity
Excellent Corrosion Protection: Hard chrome layer up to 25 μm
Smooth Surface Finish: Ra ≤ 0.2 μm after polishing
Perfect Straightness: ≤ 0.2 mm/m for precise movement
Customizable Sizes: Length, diameter, and ID according to customer requirements
| Specification | Description |
|---|---|
| Material | 20MnV6 |
| Surface Treatment | Hard Chrome Plated |
| Chrome Layer Thickness | 20–30 μm |
| Surface Hardness | ≥ 850 HV |
| Roughness | Ra ≤ 0.2 μm |
| Straightness | ≤ 0.2 mm/m |
| ID Condition | Not Honed |
| Outer Diameter | 25 mm – 250 mm |
| Length | Up to 6 meters |
| Tolerance | f7 / g6 |
| Application | Hydraulic cylinder piston rods, linear shafts, industrial automation |
EASTAI follows a strict manufacturing process to ensure each 20MnV6 hollow chrome plated rod meets international standards for mechanical strength and surface quality.
Material Selection — Certified 20MnV6 steel with uniform grain structure.
Drilling / Boring — The hollow section is produced by deep-hole drilling or trepanning.
Heat Treatment — Normalizing and tempering to enhance mechanical strength and toughness.
Precision Turning & Grinding — Ensures consistent dimensions and outer surface accuracy.
Hard Chrome Plating — Uniform chrome layer applied to resist corrosion and wear.
Polishing — Achieves a mirror finish to enhance sealing and aesthetics.
Final Inspection — Every rod is tested for hardness, roughness, straightness, and plating thickness.
All processes are carried out under ISO9001 quality management standards, ensuring high repeatability and product reliability.
The 20MnV6 ID Not Honed Hollow Chrome Plated Rod is widely used in hydraulic and pneumatic applications, including:
Hydraulic and pneumatic cylinders
Material handling and lifting equipment
Agricultural and construction machinery
Industrial automation systems
Machine tools and mechanical components
Marine and offshore equipment
Thanks to its lightweight design, dimensional stability, and high mechanical strength, it is an ideal choice for engineers seeking efficiency without compromising durability.
| Advantage | Description |
|---|---|
| Excellent Machinability | 20MnV6 offers easy processing for complex designs. |
| High Mechanical Strength | Ensures durability under high-pressure conditions. |
| Lightweight Design | Hollow structure reduces total weight and cost. |
| Superior Corrosion Resistance | Hard chrome plating resists rust and oxidation. |
| Custom Solutions | EASTAI offers size and tolerance customization to meet OEM needs. |
EASTAI guarantees safe packaging and fast delivery for all chrome plated rods.
Packaging: Anti-corrosion oil, plastic film protection, and wooden cases or steel pallets
Delivery Time: 20–30 days after order confirmation
Shipping Methods: Sea, air, or multimodal transport
Main Markets: Europe, Russia, Southeast Asia, South America, and the Middle East
EASTAI is a professional manufacturer specializing in honed tubes, chrome plated bars, hydraulic cylinders, and hydraulic power units, with 19 years of production experience and 25,000 tons annual output.
Our Advantages:
Advanced machining and chrome plating technology
In-house production and testing for full quality control
Fast delivery and strong export capability
Professional engineering support
OEM/ODM services available
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