Exploring Metric Hydraulic Tube: Size, Material, and Types

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When it comes to hydraulic systems, precision and reliability are paramount. Metric hydraulic tube ensures the smooth operation of these systems is crucial to their efficacy. This blog will delve into the key aspects of metric hydraulic tubes, including sizing, materials, and types, while also introducing a notable manufacturer in the industry, Xuzhou Global Precision Steel Tube Co., Ltd.

Xuzhou Global Precision Steel Tube Co., Ltd. sets a high standard for quality and performance in the hydraulic tubes market. Their products not only meet industry standards but often exceed them, ensuring that hydraulic systems operate at their best, with minimal downtime and maximum efficiency.

Metric Hydraulic Tube — Metric Sizing: Precision Matters

Metric hydraulic tubes are sized according to the metric system, which employs millimeters (mm) for both the outer diameter (OD) and cross-sectional area (mm²). This adherence to precision allows engineers and manufacturers to tailor hydraulic systems precisely to their requirements. Common metric sizes include 6 mm, 8 mm, 10 mm, and so forth, with the choice of size contingent upon the specific demands of the hydraulic system in question.

Metric Hydraulic Tube — Materials: Resilience and Compatibility

The materials used in metric hydraulic tubes are pivotal to their performance. These tubes must endure high-pressure hydraulic fluids and resist corrosion. Common materials include steel, copper, and various alloys, with each material offering distinct advantages.

1. Steel: Steel, whether carbon steel or stainless steel, is a stalwart choice due to its robustness and resilience. Carbon steel is cost-effective and suitable for various applications, while stainless steel boasts superior corrosion resistance and longevity. The choice between the two depends on factors such as fluid compatibility, temperature, and operating conditions.

2. Copper: Copper is an excellent conductor of heat and electricity, making it ideal for some hydraulic applications. Its corrosion resistance and malleability are also noteworthy qualities.

3. Alloys: Alloy tubes combine the best properties of different metals. They are engineered to withstand specific operating conditions and are often chosen for applications with unique demands.

Seamless vs. Welded: Meeting Pressure Needs

Metric hydraulic tubes are available in two primary forms: seamless and welded. The choice between the two hinges on the pressure requirements of the hydraulic system.

1. Seamless Tubes: These tubes are manufactured without any seams, resulting in a smoother, more uniform surface. This seamless construction makes them highly reliable under high-pressure conditions. They are the go-to choice for applications where precision and pressure resistance are paramount.

2. Welded Tubes: Welded tubes, as the name suggests, are created by welding together strips of metal. They are suitable for lower-pressure applications where the cost-effectiveness of welded construction outweighs the need for absolute pressure resistance.

Metric Hydraulic Tube — Wall Thickness: The Backbone of Strength and Durability

The wall thickness of metric hydraulic tubes is a critical factor that varies depending on the tubing size and the intended hydraulic system’s pressure requirements. These tubes come in a range of sizes to accommodate various applications, from light-duty to heavy-duty industrial systems. Thicker walls are used for higher-pressure hydraulic systems, where the tubes must withstand substantial internal forces and maintain structural integrity. Conversely, thinner-walled metric hydraulic tubes are suitable for lower-pressure applications, ensuring a balance between strength and weight.

Xuzhou Global Precision Steel Tube Co., Ltd. understands the importance of precise wall thickness in hydraulic tubes. Their commitment to manufacturing tubes that meet stringent quality standards ensures that their products perform reliably even under demanding conditions.

Metric Hydraulic Tube — Surface Finish: The Pursuit of Efficiency

Inside metric hydraulic tube, the surface finish is not just a cosmetic concern. It plays a pivotal role in optimizing the hydraulic system’s efficiency and performance. A smooth interior finish minimizes fluid friction and turbulence, which can otherwise lead to energy losses, reduced responsiveness, and potential damage to the system.

Manufacturers like Xuzhou Global Precision Steel Tube Co., Ltd. prioritize achieving the ideal surface finish in their metric hydraulic tubes. This dedication to precision ensures that their products contribute to smoother hydraulic operations and improved overall system performance.

Metric Hydraulic Tube — End Connections: The Linking Element

Metric hydraulic tubes come equipped with different types of end connections to facilitate their installation and connection with other hydraulic components. The choice of end connection depends on the specific requirements of the hydraulic system and the ease of assembly and maintenance. Common end types include flared, threaded, and welded connections.

Xuzhou Global Precision Steel Tube Co., Ltd. offers a wide range of metric hydraulic tubes with various end connections to meet diverse industry needs. Their expertise in producing tubes with reliable and secure end connections ensures that hydraulic systems can be assembled with confidence, minimizing the risk of leaks or failures.

Xuzhou Global Precision Steel Tube Co., Ltd: A Trusted Metric Hydraulic Tube Manufacturer

For those in search of high-quality metric hydraulic tubes, Xuzhou Global Precision Steel Tube Co., Ltd stands out as a reputable manufacturer. They specialize in producing customized tubes, offering a wide range of options:

1. Galvanized Tube: These tubes are coated with a layer of zinc, enhancing their corrosion resistance and extending their lifespan, making them suitable for various industries.

2. Phosphated Tube: Phosphating creates a protective layer on the tube’s surface, improving wear resistance and facilitating lubrication in hydraulic systems.

3. Bright Precision Steel Tube: These tubes exhibit exceptional precision and a smooth, bright finish, making them ideal for applications where aesthetics matter.

4. Passivated Tube: Passivation enhances the corrosion resistance of stainless steel tubes, making them suitable for demanding environments.

Xuzhou Global Precision Steel Tube Co., Ltd caters to a wide array of industries, including automotive, engineering machinery, railway locomotive, ships, and hydraulic systems. Their commitment to precision, quality, and customization makes them a trusted partner in the world of metric hydraulic tubes.


In conclusion, metric hydraulic tube plays a pivotal role in the functionality and reliability of hydraulic systems across various industries. The careful selection of size, material, and type ensures that these tubes meet the specific demands of each application, ultimately contributing to the seamless operation of hydraulic systems.