Hydraulic Tubes

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Steelage Alloys offers high-performance Stainless Steel Hydraulic Tubes designed to withstand high-pressure fluid flow and corrosive media in hydraulic systems. These tubes are manufactured with precise dimensional tolerances and smooth internal surfaces to ensure leak-proof performance, high fatigue strength, and resistance to pitting and stress corrosion.

Made using cold drawing and annealing processes, our hydraulic tubes are widely used in mobile equipment, offshore rigs, aerospace systems, automotive lines, and industrial hydraulic machinery, where high strength and reliability are essential.

Corrosion Resistant

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Bulk Orders

Features

  • High Pressure & Fatigue Resistance
  • Clean, Smooth Bore for Improved Flow Efficiency
  • Tight Tolerances and High Dimensional Accuracy
  • Superior Corrosion and Pitting Resistance
  • Cold Drawn & Annealed for Strength and Ductility
  • Compatible with Fittings & Bending Applications

Specifications

Property Details
Tube Size Range OD: 6 mm to 50 mm / Wall Thickness: 0.5 mm to 4 mm
Length Up to 6 meters (custom cut lengths available)
Finish Bright Annealed / Pickled / Polished
Tolerances As per EN 10305-4, DIN 2391, ASTM A213, ASTM A269
Testing Eddy Current, Hydrostatic, PMI, Flattening, and Flaring

Standards

Standard Description / Use
EN 10305-4 European standard for precision steel tubes for hydraulic and pneumatic systems — cold drawn, seamless or welded.
DIN 2391 German standard for seamless precision tubes — widely used for hydraulic and automotive applications.
ASTM A213 Covers seamless ferritic and austenitic alloy-steel boiler, super heater, and heat-exchanger tubes — also applied to hydraulic use where heat resistance is needed.
ASTM A269 Standard for seamless and welded austenitic stainless steel tubing for general service — used for hydraulic systems needing corrosion resistance.
SAE J524 / J525 SAE standards for cold-drawn and annealed low-carbon steel tubing and electric-resistance welded tubing — often referenced in hydraulic system design

Applications

  • Hydraulic Power Transmission Systems
  • Construction & Earthmoving Equipment
  • Marine & Offshore Hydraulic Lines
  • Aerospace Hydraulic Systems
  • Automotive Fuel & Brake Lines
  • Industrial Machinery & Automation Systems

Manufacturing Process

Hydraulic Tubes

hastelloy round bar

Round Bar

Analytic

Analytic

Cut to Length

Cut to Length

Centering

Centering

Heating

Heating

Perforation

Perforation

Inspection of Size

Inspection of Size

Pickling

Pickling

Inspection of Surface

Inspection of Surface

Lubricating

Lubricating

Cold Drawing (Cold Rolling)

Cold Drawing

Degreasing

Degreasing

Annealing

Annealing

Straightening

Straightening

Cut

Cut

Pickling / Passivating

Pickling / Passivating

Inspection

Inspection

Analytic

Analytic

Marking

Marking

Packing & Shipping

Packing & Shipping

Drawing & Formula

Formula: m = (OD - THK) × THK (mm) × L (m) × 0.02491
* For 316, 316L, 310S, 309S, etc., ratio=0.02507 OD = Outer diameter, THK = Wall Thickness, L = Length

Package

Plastic Bag

Wooden case

Logistics

By Sea

By Air