EN 10305-4 E235 Cold Drawn Seamless Tube Manufacturers/Suppliers
Product Description
The EN 10305-4 E235 Cold Drawn Seamless Tube is a precision-engineered tube designed for high-performance applications in hydraulic systems. Manufactured from high-quality E235 carbon steel, this seamless tube offers excellent mechanical properties, dimensional accuracy, and surface finish, making it a reliable choice for industries requiring durable and high-strength components.
Product Advantages
Materials
- Primary Material: E235 Carbon Steel
- Properties: Known for its balance of strength, ductility, and weldability, E235 steel is ideal for manufacturing hydraulic tubes that must endure high pressures and extreme working conditions.
International Standards:
- EN 10305-4: This tube adheres to the European standard for cold drawn precision tubes, ensuring top-quality material and manufacturing practices.
Dimension
Cold Drawn/Rolled Seamless Precision Steel Tubes Confirming To DIN2391;EN10305-1;EN10305-4
| OD | Thickness（mm） | ||||||||||
| mm | |||||||||||
| 6 | 6*1 | 6*1.5 | |||||||||
| 8 | 8*1 | 8*1.5 | 8*2 | ||||||||
| 10 | 10*1 | 10*1.5 | 10*2 | ||||||||
| 12 | 12*1 | 12*1.5 | 12*2 | 12*2.5 | |||||||
| 14 | 14*1 | 14*1.5 | 14*2 | 14*2.5 | 14*3 | ||||||
| 15 | 15*1 | 15*1.5 | 15*2 | 15*2.5 | 15*3 | ||||||
| 16 | 16*1 | 16*1.5 | 16*2 | 16*2.5 | 16*3 | ||||||
| 18 | 18*1.5 | 18*2 | 18*2.5 | 18*3 | 18*3.5 | 18*4 | |||||
| 20 | 20*1.5 | 20*2 | 20*2.5 | 20*3 | 20*3.5 | 20*4 | |||||
| 22 | 22*1.5 | 22*2 | 22*2.5 | 22*3 | 22*3.5 | 22*4 | |||||
| 25 | 25*2 | 25*2.5 | 25*3 | 25*3.5 | 25*4 | ||||||
| 28 | 28*2 | 28*2.5 | 28*3 | 28*3.5 | 28*4 | ||||||
| 30 | 30*2 | 30*2.5 | 30*3 | 30*3.5 | 30*4 | 30*4.5 | 30*5 | ||||
| 32 | 32*2 | 32*2.5 | 32*3 | 32*3.5 | 32*4 | 32*4.5 | 32*5 | ||||
| 34 | 34*2 | 34*2.5 | 34*3 | 34*3.5 | 34*4 | 34*4.5 | 34*5 | 34*6 | |||
| 35 | 35*2 | 35*2.5 | 35*3 | 35*3.5 | 35*4 | 35*4.5 | 35*5 | 35*6 | |||
| 38 | 38*2 | 38*2.5 | 38*3 | 38*3.5 | 38*4 | 38*4.5 | 38*5 | 38*6 | |||
| 40 | 40*2.5 | 40*3 | 40*3.5 | 40*4 | 40*4.5 | 40*5 | 40*6 | ||||
| 42 | 42*2.5 | 42*3 | 42*3.5 | 42*4 | 42*4.5 | 42*5 | 42*6 | ||||
| 45 | 45*2.5 | 45*3 | 45*3.5 | 45*4 | 45*4.5 | 45*5 | 45*6 | ||||
| 46 | 46*2.5 | 46*3 | 46*3.5 | 46*4 | 46*4.5 | 46*5 | 46*6 | ||||
| 48 | 48*2.5 | 48*3 | 48*3.5 | 48*4 | 48*4.5 | 48*5 | 48*6 | ||||
| 50 | 50*2.5 | 50*3 | 50*3.5 | 50*4 | 50*4.5 | 50*5 | 50*6 | ||||
| 54 | 54*3 | 54*3.5 | 54*4 | 54*4.5 | 54*5 | 54*6 | |||||
| 60 | 60*3 | 60*3.5 | 60*4 | 60*4.5 | 60*5 | 60*6 | 60*8 | ||||
| Note: 1. We can produce other specification as your requirements. 2. Surface treatment: Bright, galvanized (yellow, white, colorful), phosphated，army green passivation. |
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Features
- Seamless Construction: Ensures enhanced strength and leak resistance compared to welded tubes.
- Cold Drawn Process: Provides higher dimensional precision, improved surface finish, and better mechanical properties than hot-rolled tubes.
- High Pressure Resistance: Built to withstand demanding hydraulic applications, capable of handling high internal pressures.
- Corrosion Resistance: A variety of surface treatments (such as phosphating or galvanizing) can be applied for enhanced protection.
Surface Finish：
- Cold drawn tubes offer a smooth surface finish with reduced internal friction, improving flow efficiency and longevity.
- Surface treatments, such as phosphate coating or galvanization, can be applied depending on customer specifications to protect against corrosion.
Specifications
| Specification | Details |
| Material | E235 Carbon Steel |
| Standard | EN 10305-4 |
| Delivery Condition | Cold Drawn |
| Surface Treatment | Galvanized, Phosphated (optional) |
Dimensions
| Dimension | Range |
| Outer Diameter (OD) | 6 mm – 200 mm |
| Wall Thickness (WT) | 0.5 mm – 10 mm |
| Length | Standard 6m, Custom Lengths Available |
Manufacturing Process
- Drawing: The seamless tube is produced using a cold drawing process, which reduces the diameter and increases wall thickness to achieve precision tolerances.
- Heat Treatment: After drawing, the tubes are subjected to annealing or stress relief to ensure they meet mechanical strength requirements.
- Surface Finishing: The tubes are cleaned and, if necessary, subjected to surface treatments for improved resistance to corrosion.
- Inspection: Each batch is rigorously tested for dimensional accuracy, tensile strength, and surface defects.
Applications
-
- Hydraulic Systems: Commonly used in hydraulic piping systems, including industrial machinery, automotive hydraulic lines, and fluid control systems.
- Engineering Equipment: Suitable for high-pressure applications in construction and mining equipment, including cranes, bulldozers, and excavators.
- Fluid Transport: Ideal for transporting liquids or gases under high pressure, including in oil & gas industries and power plants.
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