DIN 2391 / ST37.4+NBK High Pressure Steel Pipe
Product Description
The DIN 2391 / ST37.4+NBK High Pressure Steel Pipe is a high-quality, precision steel pipe designed for high-pressure applications in hydraulic and pneumatic systems. Manufactured from ST37.4 steel, this pipe is processed using NBK (normalized, bright) treatment, ensuring a smooth and uniform surface finish. It is ideal for use in industries requiring high-pressure fluid transmission and precision performance, such as in machinery, hydraulic systems, and industrial equipment.
Product Advantages
Material
- Steel Grade:
- ST37.4
- Material Properties:
- ST37.4steel is known for its excellent tensile strength, high yield strength, and weldability, making it suitable for demanding high-pressure applications.
- The NBKtreatment enhances the surface finish, improving both the mechanical properties and the resistance to corrosion.
International Standards
-
- DIN 2391: Precision steel pipes for hydraulic and pneumatic systems.
- EN 10305-1: Steel tubes for hydraulic and pneumatic systems.
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. |
|||||||||||
Features
- High Pressure Resistance: Designed to withstand high internal pressures, making it ideal for use in hydraulic systems and high-pressure fluid transmission.
- Precision Manufacturing: The pipe is produced using advanced cold-drawing techniques, ensuring excellent dimensional accuracy and smooth surface finish.
- Bright Surface Finish: The NBKtreatment provides a smooth, bright surface that enhances corrosion resistance and reduces friction in hydraulic systems.
- Durability: The steel material offers high mechanical strength, making it highly durable and reliable under high-pressure conditions.
- Weldability: Easy to weld and integrate with other system components for seamless assembly.
Specifications
| Parameter | Details |
| Standard | DIN 2391, EN 10305-1 |
| Steel Grade | ST37.4 |
| Surface Finish | Normalized, Bright (NBK) |
| Applications | Hydraulic Systems, Pneumatic Systems, Industrial Equipment |
Dimensional Specifications
| Outer Diameter (mm) | Wall Thickness (mm) | Length (m) |
| 6 – 50 | 1.0 – 10.0 | 6.0 (Customizable) |
Production Process
- Cold Drawing: The pipe is drawn at room temperature to achieve precise dimensions and smooth surfaces.
- Normalization (NBK Treatment): The pipe undergoes a normalization process to relieve internal stresses, enhancing mechanical properties.
- Bright Surface Finishing: The NBKtreatment results in a bright, smooth surface that enhances corrosion resistance.
- Quality Control: Stringent quality checks are performed, including dimensional checks, pressure testing, and non-destructive testing (NDT), to ensure the pipes meet industry standards.
Applications
- Hydraulic Systems: Used for high-pressure fluid transmission in hydraulic components such as pumps, valves, and actuators.
- Pneumatic Systems: Ideal for pneumatic systems requiring high-pressure resistance and precision fluid control.
- Industrial Equipment: Suitable for various industrial machinery that requires durable and reliable steel piping for high-pressure operations.
- Construction and Mining: Employed in heavy machinery used in construction and mining, where high-pressure hydraulic systems are critical.
- Automotive Industry: Used in high-pressure applications within automotive systems, such as braking and power steering.
Why Choose EN 10305-1 Hydraulic Steel Tube?
- High Pressure Performance: Designed for high-pressure environments, ensuring reliable fluid transmission under extreme conditions.
- Precision and Quality: Manufactured with advanced cold-drawing technology for precise dimensions and a smooth, durable surface finish.
- Enhanced Corrosion Resistance: The NBKtreatment enhances the pipe’s resistance to corrosion, ensuring longer service life.
- Versatile Applications: Suitable for a wide range of industries, including hydraulics, pneumatics, and industrial equipment.
Related Products
DIN 2391 St37.4 Cold Drawn Seamless Tubing
DIN 2391 St37.4 cold drawn seamless tubing is a high-qu ... Read more
High-Pressure Precision Seamless SAE J524 Hydraulic Tubing
High-Pressure Precision Seamless SAE J524 Hydraulic Tub ... Read more
DIN 2391C Seamless Hydraulic Tube
The DIN 2391C Seamless Hydraulic Tube is a high-perform ... Read more
DIN 2391 ST 35 NBK Cold Drawn Seamless Steel Tube
The DIN 2391 ST 35 NBK Cold Drawn Seamless Steel Tube i ... Read more
Application
For Construction Machinery
DIN 2391 precision hydraulic steel pipes are widely use ... Read more
For Agricultural Machinery
EN-10305 precision seamless steel tubes are widely used ... Read more