J524 Seamless Hydraulic Tubing

J524 Seamless Hydraulic Tubing – Cold Drawn and Annealed Seamless Low Carbon Steel tubing for use in pressurized hydraulic lines. Some industrial uses include Locomotive, Heavy Equipment, Automotive, and Agricultural applications.

Recieve a FREE quote by selecting the dimensions in form and quantity, then click “ADD TO QUOTE REQUEST LIST”.

Clear Selection To Choose Again!


J524 Seamless Hydraulic Fluidline

First of all, J524 Seamless Hydraulic Tubing is especially favorable for flaring and bending. For example, Cold Drawn and Annealed Seamless Low Carbon Steel tubing for use in pressurized hydraulic lines. As a result, some industrial uses include Aircraft, Locomotive, Heavy Equipment, Automotive, and Agricultural applications. Therefore, J525 is a perfect choice where fittings, couplings, and fluid lines are used. In addition, all of our tubes ship with ends capped to prevent entry of contaminants and ensure cleanliness.


  • SAE J524
  • AMS5050K
  • AISI 1008/1010
  • ASTM/ASME A/SA179 except for average wall, aluminum killed steel
  • EN10204 3.1.B
  • PED certified
  • OD x ID
  • Uniform Lengths
  • Dual Certified

Especially noteworthy, is that our J525 is available in both Seamless and ERW (Electric Resistance Welded) types. All our tubing is manufactured to ensure a clean ID, a requirement for most hydraulic applications. Notably, our seamless hydraulic fluid line metallurgical composition is cold drawn 1010 steel which meets AMS 5050-G, JIC specs, ASTM A-179, and SAE J524.


  • Uniform ductile tubing ideal for easy flaring and bending
  • Smooth clean inside surface helps prevent damage to valves and cylinders
  • Hydraulic applications like diesel fuel injection, lubrication, generator pump, coil, air conditioner, and similar high-pressure applications
  • Unlike 4130 Seamless Alloy Steel Tubing, J524 is easily bent and flared
  • All material is dead soft annealed and drawn
  • Typical applications such as fittings, couplings, and fluid lines

As a result of multiple cold-drawn reductions, annealing both intermediate and after final tubing sizing, our J524 tubing has a high quality finish both inside and out. However, when handling tubing special care should be given not to drag, scratch or accidentally gouge since those imperfections may compromise tubing and cause leaks.


Typical Chemical Properties

Carbon Max
Phosphorous Max
Sulfur Max

Typical Mechanical Properties

Tensile Strength Min
310 MPa
Yield Strength Min
310 MPa
Elongation Min
Hardness Min
65 HRB

For more specifications see Seamless Low-Carbon Steel Tubing Annealed for Bending and Flaring at SAE International.

Additional information


20'-20' 1 inch

Contact Karay Metals, Inc.

Subscribe me your mailing list

Subscribe To Our Newsletter

Contact form 7 Mailchimp extension by Renzo Johnson - Web Developer

Request Latest Metal Tubing Stock List

Subscribe me your mailing list

Find Your Product Here

Fill out the Contact form at the bottom of all pages, or mail sibyle@karaymetals.com, or call (845) 679-3385 x 711, 9-5 EST.


Another Method:

  1. Visit Tubing Catalog and Select a Product.
  2. Select OD, ID, and Wall Thickness
  3. Select Quantity
  4. Click “Get A Quote…”
  5. Visit Quote List or Cart Icon
  6. Complete Form
  7. Click “Request Quote” button.