EAST AI Hydraulic Manufacturer
Since 2006
 |
Normalized
EAST AI
4340
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
The 4340 Chrome Plated Rod Normalized (HRC 15–22) offers several unique advantages compared to standard chrome bars.
4340 alloy ensures superior mechanical performance, with tensile strength and impact resistance beyond most medium-carbon steels.
With an HRC 15–22 hardness, it achieves a balance between machinability and fatigue resistance.
The hard chrome layer provides long-lasting protection against rust and wear, extending service life in demanding environments.
Mirror-like smoothness reduces friction, making it perfect for hydraulic and pneumatic applications.
Precision manufacturing ensures tight tolerances for seamless integration with seals and bearings.
Suitable for heavy-duty machinery, construction equipment, mining operations, and offshore hydraulic systems.
For distributors and stockists, choosing 4340 Chrome Plated Rod Normalized (HRC 15–22) means offering clients a product that combines strength, durability, and reliability.
The 4340 Chrome Plated Rod Normalized (HRC 15–22) undergoes a strict production process to ensure premium quality and consistency:
Raw Material Selection
Premium 4340 alloy steel is sourced to guarantee strength and toughness.
Heat Treatment (Normalization)
The rod is normalized to refine grain structure and stabilize mechanical properties.
Centerless Grinding
Precision grinding ensures consistent diameter and straightness.
Polishing
The surface is polished to achieve excellent smoothness and optimal adhesion for plating.
Hard Chrome Plating
A uniform chrome layer is applied, enhancing wear resistance and corrosion protection.
Final Inspection
Rigorous dimensional and hardness checks confirm compliance with standards.
Protective Packaging
Each rod is packed with anti-rust oil and secure wrapping for safe storage and transportation.
This controlled process ensures that every 4340 Chrome Plated Rod Normalized (HRC 15–22) meets international quality requirements.
The 4340 Chrome Plated Rod Normalized (HRC 15–22) is widely used in industries requiring high strength and reliable performance.
Ideal for mobile and industrial hydraulic systems.
Excavators, loaders, cranes, and bulldozers.
High load-bearing parts in drilling and excavation.
Tractors, harvesters, and implements.
Corrosion-resistant performance in harsh environments.
Structural and suspension applications.
Distributors and engineering companies value 4340 Chrome Plated Rod Normalized (HRC 15–22) for its versatility across different industries.
The technical specifications of the 4340 Chrome Plated Rod Normalized (HRC 15–22) are as follows:
| Parameter | Specification |
|---|---|
| Material Grade | 4340 Alloy Steel |
| Heat Treatment | Normalized |
| Hardness Range | HRC 15–22 |
| Surface Finish (Ra) | 0.2 μm max |
| Chrome Thickness | 20–30 microns |
| Diameter Tolerance | f7, h8, h9 |
| Straightness | ≤ 0.2 mm/m |
| Ovality | ≤ 50% of tolerance |
| Tensile Strength | 930–1080 MPa |
| Packaging | Anti-rust oil + protective wrapping |
We maintain large inventories of 4340 Chrome Plated Rod Normalized (HRC 15–22) to support urgent orders and long-term supply commitments.
Diameters from 12 mm to 350 mm.
Standard lengths of 3m, 6m, and custom cut-to-length services.
Over 5000 tons of stock available year-round.
Fast shipping options to Asia, Europe, North America, and the Middle East.
For distributors and stockists, consistent availability of 4340 Chrome Plated Rod Normalized (HRC 15–22) ensures smooth supply chain operations.
To guarantee performance, every 4340 Chrome Plated Rod Normalized (HRC 15–22) is tested with advanced equipment:
Verifies HRC 15–22 range compliance.
Ensures chrome plating corrosion resistance.
Confirms ≤0.2 mm/m tolerance.
Confirms Ra ≤0.2 μm for smooth performance.
Detects internal defects and cracks.
Diameter and tolerance inspection using micrometers.
These tests guarantee reliability for distributors, stockists, and engineering contractors.
Our 4340 Chrome Plated Rod Normalized (HRC 15–22) complies with international standards and certifications, including:
Quality management system.
Independent third-party verification.
Ensures full traceability.
Recognition for marine-grade quality.
These certifications provide confidence for global distributors and engineering companies sourcing 4340 Chrome Plated Rod Normalized (HRC 15–22).
