CK45 Honed Tube

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CK45 Honed Tube

The CK45 Honed Tube is a precision‐finished hydraulic cylinder tube manufactured from high-quality medium carbon steel CK45. Known for its excellent mechanical strength and high wear resistance, CK45 is one of the most widely used materials for hydraulic cylinder barrels.
A honed tube undergoes internal honing and polishing to achieve an exceptionally smooth surface finish with accurate dimensional tolerances (typically H8/H9).
This ensures superior sealing performance, lower friction, and long service life in hydraulic and pneumatic systems.
EASTAI’s CK45 Honed Tubes are produced using advanced cold drawing and honing equipment, ensuring consistent quality for demanding hydraulic applications.

Model:
Honed Tube
Brand:
EAST AI
Material:
CK45
Length:
Max. 13m
ID Tolerance:
H8~H10
Application:
Hydraulic cylinders for mobile equipment, industrial machinery, and heavy-duty systems
Packing:
Wooden cases

Availability:



Inquire

Product Description

Chemical Composition of CK45 Steel

Element	Content (%)
Carbon (C)	0.42–0.50
Manganese (Mn)	0.50–0.80
Silicon (Si)	0.10–0.40
Sulphur (S)	≤ 0.035
Phosphorus (P)	≤ 0.035

CK45 steel is well‐known for its combination of strength, impact resistance, and good machinability, making it an excellent material for hydraulic cylinder tubes.

Key Features of CK45 Honed Tube

EASTAI’s CK45 Honed Tubes are engineered for high precision and durability, ensuring reliable performance under demanding operating conditions.

Main Features:

High Strength Material — CK45 provides strong mechanical properties suitable for heavy-duty cylinders
Excellent Surface Finish — Ra ≤ 0.4 μm after honing
Precision ID Tolerance — Typically within H8/H9
Improved Sealing Performance — Smooth surface ensures longer seal life
Straightness Control — ≤ 0.5 mm/1000 mm
High Wear Resistance — Suitable for high-pressure hydraulic systems
Available in Metric and Imperial Sizes

CK45 Honed Tube Specifications

Specification	Description
Material	CK45 / SAE1045 / C45
Manufacturing Method	Cold Drawn + Honed + SRB (Optional)
ID Tolerance	H8 / H9
Roughness	Ra ≤ 0.4 μm
Straightness	≤ 0.5 mm/1000 mm
Outer Diameter	30 mm – 400 mm
Inner Diameter	20 mm – 350 mm
Wall Thickness	Customized
Length	Up to 12 meters
Standards	DIN 2391, EN 10305-1, ASTM A519

Manufacturing Process of CK45 Honed Tube

EASTAI applies a strict and fully controlled production process to ensure the highest precision of each CK45 honed tube.

Material Selection — High-quality CK45 seamless steel tubes
Cold Drawing — Improves dimensional accuracy and surface quality
Normalizing / Stress Relief — Enhances stability and mechanical properties
Honing or Skiving & Roller Burnishing (SRB) — Achieves mirror-like surface finish
Precision Measurement — Checks ID tolerance, surface roughness, roundness, straightness
Cleaning & Anti-Rust Treatment
Final Inspection & Packaging

Every tube is tested according to ISO9001 quality standards before shipment.

Honed Tube Production Process

Applications of CK45 Honed Tube

CK45 Honed Tubes are widely used in hydraulic and mechanical systems requiring high precision and durability.

Typical application fields include:

Hydraulic cylinder barrels
Pneumatic cylinder tubes
Construction machinery
Agricultural equipment
Lifting and material handling systems
Mining and drilling equipment
Industrial automation machinery
Machine tools and mechanical components

With excellent performance under high pressure, CK45 honed tubing is a preferred choice for hydraulic engineers.

Honed Tube Application Scenarios

Advantages of EASTAI CK45 Honed Tube

Advantage	Description
Excellent Surface Precision	Ensures low friction and extended seal life.
High Pressure Resistance	Suitable for heavy-duty hydraulic applications.
Strong Material Properties	CK45 steel provides strength and fatigue resistance.
Wide Size Range	Supports multiple sizes for global hydraulic systems.
Strict Quality Control	100% inspection on ID roughness, tolerance, and straightness.
OEM/ODM Friendly	Customized sizes and machining available.

Honed Tube Quality Inspection

Packaging and Delivery

EASTAI ensures safe and professional packing for all honed tubes.

Packaging: Anti-rust oil, plastic film, woven bag, wooden cases or steel pallets

Delivery Time: 20–30 days after order confirmation

Shipping: Sea, air, railway, or multimodal transport

Export Markets: Europe, Russia, Southeast Asia, South America, Middle East

Why Choose EASTAI for CK45 Honed Tubes

EASTAI is a professional hydraulic components manufacturer with:

19 years of industry experience
25,000 tons annual production capacity
Advanced honing and SRB equipment
Strict ISO9001 quality management
Complete hydraulic product lines: honed tubes, chrome plated bars, hydraulic cylinders, hydraulic power units

Whether you need standard sizes or customized solutions, EASTAI provides reliable quality and fast delivery.

certificate

Contact EASTAI for CK45 Honed Tube

Looking for a reliable manufacturer of CK45 Honed Tubes for hydraulic cylinders?
EASTAI is your trusted supplier for precision hydraulic tubing.

Email: info@east-ai.com
Website: www.east-ai.com
Factory: Hydraulic tubes, chrome plated bars, hydraulic cylinders, hydraulic power units

FAQ

FAQs

What is the difference between honed tube and cold drawn tube?

Cold drawn tubes are raw material tubes; honed tubes have polished internal surfaces and precise tolerances for hydraulic cylinders.
Can EASTAI do SRB (skiving & roller burnishing)?

Yes, we offer both honing and SRB finishing based on customer requirements.
What tolerance can be achieved?

ID tolerance typically reaches H8 or H9.
Can tubes be cut or machined?

Yes, cut-to-length and end machining services are available.
What’s the maximum length of a CK45 honed tube?

Up to 12 meters depending on size and export requirements.