EAST AI Hydraulic Manufacturer
Since 2006
Since 2006
Choosing the ST52 Chrome Plated Rod Normalized (HRC 15–22) provides multiple advantages for distributors, stockists, and engineers:
With normalized hardness levels of HRC 15–22, the rod offers a balance between machinability and strength, suitable for hydraulic applications.
Easier to cut, thread, and process compared to higher hardness rods.
Thick and uniform chrome plating provides long-lasting rust protection.
Manufactured with tight tolerance to fit demanding hydraulic cylinder assemblies.
Ideal for a wide range of hydraulic and pneumatic equipment.
Lower hardness levels reduce machining costs while ensuring durability.
Available in multiple diameters and lengths, ready for bulk stock.
The ST52 Chrome Plated Rod Normalized (HRC 15–22) undergoes a strict production process to guarantee stable quality and high performance.
| Process Step | Description |
|---|---|
| Raw Material Selection | High-grade ST52 steel is carefully chosen for mechanical stability. |
| Normalization Treatment | Steel rods are normalized to achieve HRC 15–22, ensuring balanced hardness. |
| Peeling & Grinding | The surface is peeled and ground to ensure dimensional accuracy. |
| Polishing | Precision polishing creates a smooth surface for excellent chrome bonding. |
| Hard Chrome Plating | A uniform chrome layer is applied for corrosion and wear resistance. |
| Final Inspection | Each rod is tested for hardness, dimensions, and plating thickness. |
This process ensures that every rod delivered meets international standards.
The ST52 Chrome Plated Rod Normalized (HRC 15–22) is widely used across industries where strength and durability are essential.
Used as piston rods in hydraulic actuators.
Excavators, bulldozers, loaders, and cranes.
Hydraulic lifts, tractors, harvesters.
Forklifts, lifts, and hoisting systems.
Shock absorbers, steering systems.
Corrosion-resistant rods for ship hydraulics.
Press machines, injection molding machines, and automation systems.
| Specification | Details |
|---|---|
| Material Grade | ST52 (DIN 2391 / EN 10305-1 Standard) |
| Heat Treatment | Normalized, hardness range HRC 15–22 |
| Surface Finish | Polished with Ra ≤ 0.2 μm |
| Chrome Plating Thickness | 20–30 microns standard, customizable upon request |
| Diameter Range | 10 mm – 500 mm |
| Length Range | Up to 12 meters (custom cut-to-length available) |
| Tolerance | ISO f7 standard |
| Corrosion Resistance | 96–120 hours salt spray test (ASTM B117) |
| Straightness | ≤ 0.2 mm per meter |
| Packaging | Oiled, plastic-wrapped, and bundled with seaworthy export protection |
We maintain a large stock of ST52 Chrome Plated Rod Normalized (HRC 15–22) to ensure fast delivery for bulk orders:
From Ø 20 mm to Ø 300 mm available.
Special diameters and lengths can be produced within short lead times.
Bundled with anti-rust oil and wrapped for sea or land shipment.
Exported to Europe, Asia, North America, and the Middle East.
With strong inventory capacity, we help distributors and engineering companies reduce waiting time and project delays.
Every ST52 Chrome Plated Rod Normalized (HRC 15–22) undergoes strict quality testing before shipment:
Ensures the normalized range HRC 15–22 is consistently achieved.
Diameter, length, and tolerance are verified.
Polished finish checked with Ra ≤ 0.2 μm.
Ensures uniform chrome thickness across the rod.
Verifies corrosion resistance performance.
Guarantees minimal deflection per meter.
These inspections guarantee that customers receive only premium-quality chrome plated rods.
Our ST52 Chrome Plated Rod Normalized (HRC 15–22) is manufactured in compliance with international standards and certified by globally recognized institutions:
These certificates provide strong assurance for distributors and engineering companies sourcing our products.
