• EN 10305-4 Precision Seamless Tube for Hydraulic and Pneumatic Systems

EN 10305-4 Precision Seamless Tube for Hydraulic and Pneumatic Systems

  • OD: 4 – 80mm
  • WT: 0.5 – 12.5mm
  • Grade: E215, E235, E355

EN 10305-4 Precision Seamless Tube for Hydraulic and Pneumatic Systems

EN 10305-4 Precision seamless tubes are essential components in hydraulic and pneumatic systems, renowned for their high precision, exceptional surface finish, and stringent dimensional tolerances. Manufactured to meet the rigorous demands of these systems, these tubes are designed to ensure efficient fluid power transmission, minimize leakage, and reduce pressure drops, making them indispensable in various industries such as automotive, aerospace, marine, and heavy machinery. The superior quality of EN 10305-4 tubes enables them to perform reliably in critical applications, including hydraulic cylinders, pneumatic actuators, and control systems, where durability and performance are paramount. Their consistent quality and performance make them a preferred choice for engineers and manufacturers seeking to optimize system efficiency and longevity.

Chemical Composition of EN 10305-4 Precision Seamless Tube for Hydraulic and Pneumatic Systems

Steel Grade Steel Number C max (%) Si max (%) Mn max (%) P max (%) S max (%) Al (total) min (%)
E215 1.0212 0.10 0.05 0.70 0.025 0.025 0.025
E235 1.0308 0.17 0.35 1.20 0.025 0.025 0.015
E355 1.0580 0.22 0.55 1.60 0.025 0.025

Mechanical Properties of EN 10305-4 Precision Seamless Tube for Hydraulic and Pneumatic Systems

Steel Grade Delivery Condition Tensile Strength (MPa) Yield Strength (MPa) Elongation (%)
E215 BK 320-520 ≥215 ≥6
BKW 290-450 ≥195 ≥12
BKS 290-450 ≥195 ≥12
GBK 290-430 ≥185 ≥30
NBK 290-430 ≥185 ≥30
E235 BK 350-580 ≥235 ≥6
BKW 315-490 ≥215 ≥12
BKS 315-490 ≥215 ≥12
GBK 315-450 ≥195 ≥25
NBK 315-450 ≥195 ≥25
E355 BK 550-750 ≥355 ≥5
BKW 510-710 ≥335 ≥8
BKS 510-710 ≥335 ≥8
GBK 490-630 ≥315 ≥20
NBK 490-630 ≥315 ≥20

Specifications

Standard EN 10305-4 Precision Seamless Tube for Hydraulic and Pneumatic Systems
Steel Grade/Material E215, E235, E355
Outside Diameter (OD) 4 – 80mm
Wall Thickness (WT) 0.5 – 12.5mm
Length 500 – 10000mm
End Plain Ends
Packing Typically, they are packed in protective wrapping with plastic end caps, bundled with straps, or placed in wooden or plastic crates. They are often palletized and labeled to ensure safe transportation and storage.
Section Shape Round
Technique Seamless Cold-Drawn
Place of Origin Made in China
MOQ 3 Ton/Size
Transportation Land transportation is by truck or train, and sea transportation is by container ship or bulk ship.
Delivery Condition Symbol Description
As-drawn BK No heat treatment after the last cold drawing pass
Cold-finished, soft BKW After the previous heat treatment, a slight cold drawing
Annealed GBK After the final cold drawing process, the tubes are annealed in a controlled atmosphere.
Stress-relieved BKS After the final cold drawing process, the tubes are stress-relieved in a controlled atmosphere.
Normalized NBK After the final cold drawing operation, the tubes are normalized in a controlled atmosphere.

Applications of EN 10305-4 Precision Seamless Tube for Hydraulic and Pneumatic Systems

Hydraulic Systems:

Hydraulic Cylinders: Used for converting fluid power into linear motion and force.
Hydraulic Lines: Serve as pipelines for transporting hydraulic fluids with minimal leakage and pressure drop.
Hydraulic Accumulators: Utilized to store energy in the form of pressurized fluid.

Pneumatic Systems:

Pneumatic Cylinders: Act as the main body, converting compressed air into mechanical motion.
Pneumatic Actuators: Ensure accurate and smooth movement in mechanical operations.
Pneumatic Control Systems: Connect components for quick, efficient airflow with minimal pressure loss.

Automotive and Industrial Machinery:

Brake and Clutch Systems: Ensure reliable hydraulic pressure transmission in automotive applications.
Heavy Machinery: Used in hydraulic systems for operating, lifting, digging, and other heavy-duty functions.

Aerospace and Defense:

Landing Gear Systems: Operate hydraulic circuits for safe deployment and retraction.
Control Systems: Employed in control systems requiring precise fluid control.

Marine Applications:

Marine Engineering: Operate steering, anchor handling, and other vital marine equipment resistant to corrosion and high pressure.

Medical Equipment:

Medical Devices: Used in ventilators and anesthesia machines for accurate and reliable fluid delivery.

Inquiry form


    captcha