Precision Hydraulic Pipe

Precision Carbon Steel Pipe for Hydraulic Pressure Piping

Our hydraulic pipes are cold-drawn seamless.

  OST is a “precision carbon steel pipe for hydraulic pressure piping.” This pipe is used with piping that utilizes an internal hydraulic flare-type or insertion-type fitting.

 With a total quality assurance system from manufacturing to inspection, high-grade pipes can be delivered in a short time. 

Potential Range of Manufacturing

In some cases, it may be possible to work outside the potential range of manufacturing. Please feel free to contact us.


Specifications of hydraulic pipe is determined from pressure resistance capacity and processability.

Outer diameter range : 4.0mm - 50.0mm. We can provide the size out of this standard range.

Scaleless bright heat treatment. Non-destructive test does not miss hazardous defects. We also provide small amount packaging services.

Potential range of manufacturing

Product List

Rifled Tube



Inner Fin

Low Fin