EAST AI Hydraulic Manufacturer
Since 2006
 |
Normalized
EAST AI
CK45
Max. 15m
f7/f8/g6,etc
≤0.2/1000 mm
Hydraulic cylinders for mobile equipment, industrial machinery, and heavy-duty systems
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
≤0.2u
Product Description
The CK45 Chrome Plated Rod Normalized (HRC 15–22) provides multiple advantages that make it a preferred choice for demanding industries:
With hardness between HRC 15–22, it offers moderate strength while maintaining machinability.
Hard chrome plating (20–30 μm layer) ensures protection against rust and surface wear.
Straightness tolerance ≤0.2 mm/1000 mm ensures reliable alignment in hydraulic and mechanical applications.
Achieving Ra ≤0.2 μm, ensuring smooth performance in hydraulic cylinder assemblies.
Normalized treatment guarantees homogeneity in grain structure and consistent quality.
Ideal for hydraulic cylinders, agricultural machinery, lifting equipment, and construction engineering.
Available in OD 8–350 mm, up to 8 meters in length, with cut-to-size service.
The following table shows the technical parameters of CK45 Chrome Plated Rod Normalized (HRC 15–22):
| Parameter | Specification |
|---|---|
| Material Grade | CK45 (Equivalent to SAE1045 / EN C45) |
| Heat Treatment | Normalized |
| Hardness Range | HRC 15 – 22 |
| Surface Treatment | Hard Chrome Plating |
| Chrome Layer Thickness | 20 – 30 μm (customizable) |
| Surface Roughness (Ra) | ≤ 0.2 μm |
| Straightness Tolerance | ≤ 0.2 mm / 1000 mm |
| Outer Diameter Range | 8 mm – 350 mm |
| Length Range | Up to 8 meters (custom cut available) |
| Tensile Strength | 600 – 750 MPa |
| Yield Strength | ≥ 340 MPa |
| Applications | Hydraulic cylinders, construction machinery, lifting equipment, agricultural use |
| Standards | DIN 2391, EN 10305, ISO 9001 |
The CK45 Chrome Plated Rod Normalized (HRC 15–22) is manufactured under strict quality control, ensuring consistency in every batch. The production process includes:
| Step | Process | Purpose |
|---|---|---|
| 1 | Raw Material Selection | High-quality CK45 steel billets are sourced to ensure purity and performance. |
| 2 | Normalizing Heat Treatment | Provides uniform grain structure and stable mechanical properties. |
| 3 | Peeling / Turning | Removes surface imperfections and achieves precise dimensions. |
| 4 | Straightening | Ensures tight straightness tolerance for hydraulic applications. |
| 5 | Grinding & Polishing | Creates a smooth surface finish before plating. |
| 6 | Hard Chrome Plating | Applies 20–30 μm layer for corrosion and wear resistance. |
| 7 | Final Inspection & Packaging | Each rod undergoes strict dimensional, hardness, and surface testing. |
This streamlined process ensures each rod meets international standards and customer expectations.
The CK45 Chrome Plated Rod Normalized (HRC 15–22) is widely used across industries due to its versatility:
Core material for piston rods in industrial and mobile hydraulic systems.
Used in excavators, loaders, cranes, and lifting equipment.
Ensures durability in tractors, harvesters, and sprayers.
Supports forklifts, scissor lifts, and warehouse automation.
Suitable for shafts, guide rods, and other precision mechanical components.
Its combination of normalized strength and chrome plating ensures long service life under diverse working conditions.
As a professional supplier, we maintain large stock to meet urgent delivery needs. Our inventory features:
Diameter 20–200 mm, length up to 6 meters readily available.
Customized cutting available based on project requirements.
Ability to provide bulk orders for distributors and engineering contractors.
Stock materials can be shipped within 7–10 working days.
By keeping sufficient inventory, we support dealers, wholesalers, and project managers in reducing lead times and ensuring continuous supply.
To guarantee stable performance, each CK45 Chrome Plated Rod Normalized (HRC 15–22) undergoes rigorous quality inspection, including:
Diameter, roundness, and straightness checked with precision instruments.
Ensures Ra ≤ 0.2 μm for smooth performance.
Confirms plating layer of 20–30 μm.
Verifies corrosion resistance performance.
Ensures normalized hardness within HRC 15–22.
Checks for internal defects in steel rods.
Every rod is delivered with test reports to provide full traceability and confidence to our customers.
Our CK45 Chrome Plated Rod Normalized (HRC 15–22) production meets international certifications:
These certifications ensure compliance with global quality and safety standards.
