EAST AI Hydraulic Manufacturer
Since 2006
A Quenched and Tempered Chromed Plated Rod (HRC 25-32) is a steel rod that undergoes quenching and tempering heat treatment to achieve a hardness range of HRC 25-32.
After heat treatment, the rod is coated with a layer of hard chrome plating to provide excellent corrosion resistance, wear resistance, and smooth surface finish.
These rods are widely used in hydraulic cylinders, pneumatic cylinders, and other high-performance mechanical applications where strength, toughness, and durability are essential.
They are also referred to as tempered chrome rods, quench-tempered rods, or hydraulic cylinder rods in industrial contexts.
The quenching and tempering process improves the rod's toughness, fatigue resistance, and dimensional stability.
The chrome plating ensures long-lasting protection against rust, abrasion, and chemical corrosion.
With a hardness of HRC 25-32, the rod achieves an optimal balance between strength and machinability.
These properties make them suitable for medium-duty hydraulic and pneumatic systems, construction machinery, and lifting equipment.
The combination of toughness and surface durability also minimizes maintenance and replacement frequency in industrial applications.
They are primarily used in hydraulic cylinder piston rods, pneumatic cylinder shafts, and industrial machinery components.
Construction machinery, agricultural equipment, mining machinery, and lifting platforms often rely on these rods for reliable performance.
Other applications include presses, material handling systems, and marine equipment where moderate hardness and high toughness are required.
LSI keywords include “hydraulic rod,” “chromed shaft,” “tempered steel rod,” and “pneumatic cylinder rod.”
Quenching involves rapidly cooling the steel rod after heating, creating a hard, martensitic surface layer.
Tempering follows to reduce brittleness and improve toughness, resulting in a rod that can withstand repeated loads without cracking.
When combined with chrome plating, the rod gains high wear resistance, corrosion protection, and a smooth sliding surface for seals in hydraulic and pneumatic systems.
This process ensures longer service life and reliable operation under medium-duty conditions.
Hardness: HRC 25–32
Surface Finish: Ra ≤ 0.2µm
Straightness: ≤ 0.2mm/1000mm
Chrome Thickness: 20–30 microns, adjustable as needed
Length: Up to 15 meters or customized
Material Grades: Typically CK45, 42CrMo4, or ST52 steel
These specifications ensure consistent performance in hydraulic and pneumatic applications, as well as durability under moderate stress.
Normalized chromed plated rods have a lower hardness (HRC 15-22) and are mainly used where moderate strength and machinability are sufficient.
Quenched and tempered rods, with HRC 25-32, offer higher strength and better fatigue resistance while retaining machinability.
Tempered rods are more suitable for medium-duty hydraulic and pneumatic systems, construction equipment, and machinery that experiences cyclic loading.
The choice depends on application requirements, including load, wear, and corrosion considerations.
Yes, these rods can be customized in terms of diameter, length, hardness, surface finish, and chrome thickness.
Manufacturers can also provide special tolerances, tailored machining, or additional surface treatments to meet specific hydraulic or pneumatic cylinder requirements.
Customization ensures compatibility with OEM machinery, industrial equipment, and other specialized mechanical applications.
EAST AI Hydraulic Manufacturer
Since 2006
