ST52 Hollow Chrome Plated Rod ID Not Honed

ST52 Hollow Chrome Plated Rod (ID Not Honed) is a lightweight hard chrome hollow rod used for cost-effective hydraulic systems. With a chrome-plated surface and raw ID, it offers a balance between strength, corrosion resistance, and price performance.

Brand:
EASTAI
Material:
ST52
Length:
Max. 15m
Straightness:
≤0.2/1000 mm
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


Availability:



Inquire

Product Description

ST52 Hollow Chrome Plated Rod ID Not Honed: A Practical Solution for Cost-Conscious Hydraulic Design

ST52 Hollow Chrome Plated Rod ID Not Honed is manufactured from seamless ST52 (E355) steel tubes. It features a precision-ground chrome plated outer surface with a raw, non-honed inner diameter. This rod is an excellent choice for applications where the interior surface doesn't require precision sealing or close tolerance.

The external surface is treated with hard chrome plating (20–30 μm) for excellent corrosion and wear resistance. Because the ID is not honed, production cost is lower, making this rod suitable for cost-sensitive projects or applications where the tube is used primarily as a structural support or low-friction guiding shaft.

This rod is often used as a Hollow chrome hydraulic bar in basic hydraulic applications, as well as a Hollow chrome suspension rod in mobile equipment.

Key Specifications

Property	Specification
Material	ST52 / E355 Seamless Steel
Surface Finish	Hard Chrome Plated (OD only)
Chrome Thickness	20–30 μm
Surface Roughness (OD)	Ra ≤ 0.2 μm
ID Condition	Raw, Not Honed
OD Tolerance	ISO f7
Straightness	≤ 0.2 mm/m
Surface Hardness	HRC 50–60
Tensile Strength	≥ 600 MPa
Max Length	Up to 6 meters (custom lengths available)

Why Choose ST52 Hollow Chrome Plated Rod ID Not Honed?

Cost-Effective Design
The non-honed ID reduces production cost, ideal for projects where internal finish is not critical.
High Outer Precision
OD is ground and hard chrome plated to ISO f7 tolerance, ensuring compatibility with seals, bushings, or linear motion parts.
Corrosion & Wear Resistance
The chrome layer protects against surface damage, moisture, and abrasive environments.
Versatile Use Cases
Applicable in Hollow chrome hydraulic bar designs, basic fluid movement rods, and mechanical guiding systems.
Weight Reduction Advantage
The hollow structure cuts down weight while maintaining high bending resistance, perfect for Hollow chrome suspension rod applications in mobile and off-road equipment.

Common Applications

Lightweight piston rod systems
Guide tubes in automation or robotics
Boom arms in lifting machines
Telescopic hydraulic components
Suspension bars in agricultural or construction equipment
Fluid pass-through shafts (non-sealing)

The ST52 Hollow Chrome Plated Rod ID Not Honed is a great alternative when you don’t need the ID precision of a honed tube but still require external chrome quality and straightness.

Benefits Overview

Lower manufacturing and material cost
Widely used in general-purpose and light-duty hydraulics
Easier to machine or modify for threaded or welded assemblies
Reduces system weight in mobile or suspended structures
Ideal as Hard chrome hollow rod where internal flow or pressure is not a concern

FAQ

FAQs

What does "ID not honed" mean and why is it important?

"ID not honed" means the inner surface is left as raw-drawn or rough-machined, without fine grinding or polishing. It's suitable for non-sealing or structural uses, reducing cost.
Can this be used in a hydraulic cylinder?

Yes, but only if the inner diameter is not required to seal with a piston or wear ring. It's ideal for guide rods or outer tubes with pass-through components.
How does this compare to a honed hollow piston rod?

The honed version has a precise ID suitable for sealing. This version offers a lower-cost option with an equally durable outer chrome finish but less internal accuracy.
Is the chrome plating suitable for outdoor or corrosive environments?

Yes. The 20–30 μm thick chrome layer protects against corrosion and surface damage even in humid or abrasive environments.
Can I customize the ID size or request honing later?

Yes. We can supply semi-finished tubes that allow post-machining or honing based on your design needs.