Seamless Hydraulic Tubing (SAE J-524)

Seamless Hydraulic Tubing (SAE J-524) covers cold drawn and annealed seamless low carbon steel pressure tubing intended for use as hydraulic lines and in other applications requiring tubing of a quality suitable for flaring and bending.  All material is dead soft annealed and drawn.  Has uniform ductility and a smooth clean inside surface. 

Made from 1006 to 1018 Steel
Meets SAE J-524
J524 Seamless Hydraulic Tubing Tolerances

Stocked Size Range:

  • 0.125” to 1.500” O.D. from 0.028” to 0.120” Wall Thickness
  • Stocked in 20.000’ lengths (cut to length available)

Manufacturing Process

Seamless hydraulic tubing is produced as a seamless tube by rolling and piercing bar stock.  It then gets multiple cold-drawing reductions before a final cold draw guarantees tight dimensional tolerances and excellent surface finish.  After final sizing of the tube through cold drawing it undergoes intermediate annealing and a dead-soft annealing process to meet SAE J524 requirements.

Benefits of Seamless Hydraulic Tubing:


  • Exceptionally Bright and Clean OD and ID.


  • Designed to withstand fluid pressures due to being highly tested and cold worked.


  • Quality and chemistry are carefully restricted.


  • Very good for bending, flaring, forming, and brazing.

Applications by Industry:

Seamless Hydraulic tubing is used in any application from aerospace to heavy equipment in which fluid transfer is needed and/or where bending and flaring are critical. 

Chemical Composition (J524 Hydraulic Tubing)

Chemistry %
Carbon 0.06 - 0.018 Max
Manganese 0.30 - 0.60
Phosphorus 0.040 Max
Sulfur 0.050 Max

Mechanical Properties (Typical)

(Max HRB)
(in 2" Min)
25,000 45,000 65 35%
Customized Cut Lengths Available. Please Specify Cut Length During Quote Process.

J.I.C Seamless Hydraulic Tubing

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