Hydraulic& Transmission Alloy Steel Pipes

• ​Introduction

Hydraulic& Transmission Alloy Steel Pipes are high-performance pipes specifically designed for hydraulic systems and power transmission applications. These pipes combine the advantages of alloy steel, such as high strength, excellent toughness, and superior corrosion resistance, to ensure reliable and efficient operation under high-pressure and complex working conditions.

• ​Main Functions

High-Pressure Resistance: Capable of withstanding extremely high hydraulic pressures, ensuring the safe and stable operation of hydraulic systems without leakage or deformation.

Power Transmission: Efficiently transmit mechanical power, maintaining the stability and accuracy of power transfer in various equipment.

Corrosion Protection: The alloy composition provides strong resistance to corrosion from hydraulic fluids, moisture, and environmental factors, extending the service life of the pipes.

Vibration and Fatigue Resistance: With excellent mechanical properties, these pipes can effectively reduce the impact of vibrations and resist fatigue damage, enhancing the overall reliability of the system.

• ​Tubing  Standards

ISO 10763; ASTM A519；EN 10305-4；GB/T 3639；

• ​Material & Performance

25CrMo4，42CrMo4; 4130，4140；34CrMo4，42CrMo4；25CrMo，30CrMo，42CrMo；

High Tensile Strength: Providing excellent load-bearing capacity. Good Ductility: Allows for easy forming and bending during installation without cracking. Superior Wear Resistance: Reduces internal friction and wear, ensuring long-term stable performance. Low Temperature Resistance: Maintains good mechanical properties even in extremely low-temperature environments, expanding the application scope.

• ​Manufacturing Process

Rolling: Use cold rolling or cold drawing processes to process the billet. Through multiple passes of rolling, gradually reduce the outer diameter and wall thickness of the steel tube, and improve the dimensional accuracy and surface quality. During the cold rolling process, the steel tube can reach the required specifications by precisely controlling the shape, size, and rolling speed of the rolls. ​

Heat treatment: According to the performance requirements of the steel pipe, conduct heat treatment on the rolled steel pipe, such as normalizing, tempering, quenching, etc., to eliminate the residual stress inside the steel pipe and improve its strength, toughness, hardness, and other properties.

Surface treatment: Conduct surface treatment on the steel pipe, such as pickling,phosphating ,shot blasting,painting, galvanizing, or Grinding, etc., to prevent the steel pipe from being corroded during use and improve its corrosion resistance and service life.

Inspection: Conduct a comprehensive inspection on the finished steel pipe, including the inspection of dimensional accuracy, appearance quality, mechanical properties, chemical composition, etc., to ensure that the steel pipe meets the relevant standards and customer requirements.

• Specifications