

4140 Hollow ID Not Honed Chrome Plated Rod
Discover our premium 4140 Hollow ID Not Honed Chrome Plated Rod, crafted from high-strength SAE 4140 alloy steel for superior durability and corrosion resistance. Ideal for distributors, inventory holders, and engineering firms, this rod excels in hydraulic cylinders, heavy machinery, and automotive applications. With a precision-ground surface, 20–100 micron chrome plating, and customizable sizes (6mm–800mm), it ensures reliable performance in demanding environments.
Brand:EAST AI
Material:4140
Length:Max. 15m
ID Tolerance:f7/f8/g6,etc
Straightness:≤0.2/1000 mm
Application:Hydraulic cylinders for mobile equipment, industrial machinery, and heavy-duty systems
Packing: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
Roughness:≤0.2u
Product Description
Advantages of 4140 Hollow ID Not Honed Chrome Plated Rod
High strength and durability thanks to 4140 alloy steel.
Corrosion resistance from chrome-plated surface.
Lightweight structure due to hollow ID design.
Cost-effective alternative to solid piston rods.
Customizable sizes for different applications.
4140 Hollow ID Not Honed Chrome Plated Rod Product Parameters
Parameter | Specification |
Material | 4140 Alloy Steel |
Hardness | HRC 15–62 |
Length | Up to 15 meters or customized |
Surface Roughness | Ra ≤ 0.2μ |
Straightness | ≤ 0.2/1000mm |
Surface Finish | Chrome Plated, Mirror-like Surface |
Applications of 4140 Hollow ID Not Honed Chrome Plated Rod
The 4140 Hollow ID Not Honed Chrome Plated Rod is widely used in:
Hydraulic cylinder piston rods
Construction and mining equipment
Agricultural machinery
Lifting and material handling systems
Marine and offshore engineering
General industrial machinery

4140 Hollow ID Not Honed Chrome Plated Rod Production Process
Our factory follows strict procedures to ensure consistent quality:
Raw Material Selection
4140 alloy steel with strict inspection.
Cold Drawing & Heat Treatment
to enhance mechanical properties.
Turning & Grinding
achieving precise dimensions.
Chrome Plating
providing corrosion resistance.
Quality Testing
hardness, straightness, and surface roughness checks.

4140 Hollow ID Not Honed Chrome Plated Rod Factory Strength
Over 18 years of experience in hydraulic components.
Advanced production machines: skiving & roller burnishing, grinding, plating.
Strict quality control with international standards.
Large inventory capacity to meet urgent demands.
Global supply network for distributors, stockists, and engineering companies.
Certificates for 4140 Hollow ID Not Honed Chrome Plated Rod
ISO 9001 Quality Management
SGS Inspection Approval
GL (Germanischer Lloyd) Certification
In-house salt spray and hardness test reports

4140 Hollow ID Not Honed Chrome Plated Rod – Product Details
Each rod features:
Smooth high-polish chrome surface for minimal friction
Hollow internal design for weight reduction
Precision tolerance ensuring compatibility with hydraulic cylinders
Corrosion and wear resistance for long-term reliability
4140 Hollow ID Not Honed Chrome Plated Rod – Quality Inspection
The 4140 Hollow ID Not Honed Chrome Plated Rod undergoes rigorous quality inspection to ensure each product meets international standards and delivers reliable performance in hydraulic applications. Our quality control process guarantees consistency in hardness, diameter, straightness, and surface finish, providing confidence for distributors, stockists, and engineering companies.
Quality Inspection Process:
Raw Material Testing
Chemical composition and mechanical properties of 4140 steel are verified before production.
Diameter & Tolerance Check
Precision measurement tools ensure H8~H10 tolerance compliance.
Surface Roughness Inspection
Ra ≤ 0.2 µm is confirmed using advanced profilometers.
Straightness Control
Rod straightness is measured, ensuring ≤0.2 mm per 1000 mm standard.
Hard Chrome Plating Verification
Thickness, adhesion, and uniformity of chrome layer are tested.
Final Dimensional Check
Length, hollow ID, and overall geometry are inspected for custom orders.

Contact & Inquiry
For distributors, stockists, and engineering contractors seeking 4140 Hollow ID Not Honed Chrome Plated Rod, please contact us to discuss availability, specifications, and pricing. Our team is ready to provide detailed technical support, fast delivery, and customized solutions to meet your hydraulic system requirements.