Impact of DIN 2391 Specification on Hydraulic Steel Tubes

In the realm of hydraulic systems, the choice of hydraulic steel tubes plays a pivotal role in determining the overall quality and performance of the system. DIN 2391, a renowned specification for hydraulic steel tubes, has a significant impact on various aspects, ranging from quality and performance to cost-effectiveness and longevity.

Quality Enhancement

Precise Dimension and Tolerances

DIN 2391 stipulates stringent tolerances and dimensional requirements for hydraulic steel tubes. It ensures that the tubes are manufactured with utmost precision, minimizing any deviations in size and shape. The adherence to these specifications results in tubes that fit perfectly within the hydraulic system, reducing the risk of leaks and enhancing overall performance.

Material Selection

The specification outlines the specific material requirements for hydraulic steel tubes. Typically, these tubes are made from high-quality, seamless steel, ensuring strength and durability. The material's composition and mechanical properties are meticulously defined to meet the demands of hydraulic applications, where factors like pressure and temperature fluctuations are common.

Quality Control

DIN 2391 emphasizes rigorous quality control procedures throughout the manufacturing process. This includes non-destructive testing methods such as ultrasonic and eddy current testing to identify any flaws or defects. The stringent quality control measures result in tubes with a high level of integrity and reliability.

Performance Optimization

Efficiency and Flow Characteristics

Hydraulic systems rely on the seamless flow of fluids, and any impediment can lead to reduced efficiency. DIN 2391 ensures that hydraulic steel tubes have smooth inner surfaces, minimizing friction and pressure losses. This optimization contributes to enhanced system efficiency and reduced power consumption.

Size and Specifications

The specification covers a wide range of tube sizes and specifications, allowing for precise selection based on the hydraulic system's requirements. Matching the tube size to the application ensures optimal flow rates and performance, reducing the need for costly modifications.

Extended Service Life

The combination of high-quality materials and precise manufacturing techniques specified in DIN 2391 results in hydraulic steel tubes with a longer service life. This extended lifespan translates to reduced maintenance and replacement costs over time.

Cost Considerations

Initial Investment

While hydraulic steel tubes meeting DIN 2391 standards may come with a slightly higher initial cost, they offer excellent long-term value. The reduced maintenance and replacement expenses, as well as improved efficiency, outweigh the initial investment.

Budgetary Benefits

Incorporating DIN 2391-compliant tubes in hydraulic systems allows for better budget planning. Their predictable performance and extended service life reduce the need for emergency repairs and replacements, resulting in more accurate budget forecasting.


The DIN 2391 specification significantly impacts the quality and performance of hydraulic steel tubes. Its focus on precise dimensions, material quality, and quality control measures ensures that these tubes are a reliable choice for hydraulic systems. By optimizing efficiency, extending service life, and offering long-term cost benefits, DIN 2391-compliant hydraulic steel tubes prove to be a valuable investment in any hydraulic system.

For more information on DIN 2391 Hydraulic Steel Tubes, you can visit Lord Tubing.

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