top of page

ST52 Chrome Plated Rod Induction And Hardened (HRC 50-62)

The ST52 Chrome Plated Rod Induction And Hardened (HRC 50-62) is a high-strength hydraulic piston rod designed for demanding mechanical and hydraulic applications. Manufactured from ST52 seamless steel, it undergoes precision grinding, chrome plating, and advanced induction hardening. The result is a rod that combines excellent wear resistance, surface hardness (HRC 50-62), and superior corrosion protection. This makes it suitable for heavy-duty hydraulic cylinders, lifting systems, construction machinery, and industrial equipment where durability and extended service life are crucial.

  • Model:Induction And Hardened

  • Brand:EAST AI

  • Material:ST52

  • 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 ST52 Chrome Plated Rod Induction And Hardened (HRC 50-62)

Distributors, stockists, and contractors choose this product due to several key benefits:


High Surface Hardness


Induction hardening increases hardness up to HRC 50-62, enhancing wear resistance.


Superior Corrosion Resistance


Chrome plating provides a smooth, rust-resistant finish suitable for outdoor and marine environments.


Excellent Fatigue Strength


Induction hardening improves fatigue life in dynamic load conditions.


Dimensional Accuracy


Precision grinding ensures tight tolerances for hydraulic applications.


Cost-Effective Performance


Longer lifespan reduces maintenance and replacement costs.


Versatility


Suitable for hydraulic cylinders, material handling systems, construction machinery, and more.



Production Process of ST52 Chrome Plated Rod Induction And Hardened (HRC 50-62)

The production follows strict quality-controlled steps:


  1. Raw Material Selection


    High-quality ST52 seamless steel bars are chosen for their machinability and strength.


  2. Rough Turning & Straightening


    Rods are machined and straightened to prepare for precision grinding.


  3. Peeling & Grinding


    Advanced CNC machines grind rods to precise tolerances and surface finishes.


  4. Induction Hardening


    The rod surface is heated by induction, then rapidly cooled, creating a hardened layer of HRC 50-62 while maintaining a tough core.


  5. Chrome Plating


    A uniform chrome layer is applied for corrosion resistance and smooth finish.


  6. Polishing


    Final polishing ensures mirror-like surface roughness (Ra ≤ 0.2μm).


  7. Quality Inspection


    Dimensional, hardness, adhesion, and corrosion tests confirm compliance with standards.



Applications of ST52 Chrome Plated Rod Induction And Hardened (HRC 50-62)

Thanks to its mechanical strength and hardened surface, the rod is widely applied in:


Hydraulic Cylinders


Mobile and industrial hydraulic systems for lifting and pushing.


Construction Machinery


Excavators, loaders, bulldozers, and cranes.


Agricultural Equipment 


Tractors, harvesters, and plowing machinery.


Material Handling Systems


Forklifts, lifting platforms, and hoists.


Marine & Offshore Equipment


Resistant to corrosion in seawater conditions.


Industrial Automation


Pneumatic and hydraulic presses, manufacturing machinery.



Factory Inventory of ST52 Chrome Plated Rod Induction And Hardened (HRC 50-62)

As a trusted manufacturer and supplier, we maintain large stock capacity to meet urgent orders:


Standard Sizes Ready in Stock


Popular diameters and lengths available.


Custom Cut-to-Length Service


Reduce machining time for distributors and contractors.


Bulk Supply for Dealers


Stable production capacity supports long-term cooperation.


Fast Delivery Worldwide


Efficient logistics ensure timely supply for urgent projects.




Quality Testing of ST52 Chrome Plated Rod Induction And Hardened (HRC 50-62)

To guarantee consistency, every batch undergoes strict quality control:


Hardness Testing


Ensures HRC 50-62 on the surface.


Chrome Thickness Measurement


Confirms plating thickness of 20–30 μm.


Salt Spray Test


Validates corrosion resistance under extreme conditions.


Ultrasonic Testing


Detects internal cracks or defects.


Straightness Check


Ensures deviation within 0.2mm/1000mm.


Surface Inspection


Prevents flaws like pitting, cracks, or pinholes.


Certificates of ST52 Chrome Plated Rod Induction And Hardened (HRC 50-62)

We provide international certifications that enhance distributor and engineering contractor trust:


ISO 9001:2015 Quality Management System

Material Test Certificate (EN 10204 3.1/3.2)

SGS / BV Third-Party Inspection Reports

Salt Spray Resistance Test Certificate

Hardness & Plating Reports


These certifications assure customers of traceable material, quality stability, and compliance with global standards.


bottom of page