Galvanized Carbon Steel Tubes

Galvanized carbon steel tubes are manufactured using electro-galvanizing (cold galvanizing) process, which forms a uniform, dense, and well-bonded zinc coating on the tube surface. This coating significantly improves corrosion resistance, appearance quality, and service life.

Vulroc Tube supplies high-quality electro-galvanized precision carbon steel tubes widely used in hydraulic systems, automotive pipelines, and precision machinery applications.

  • Electro-Galvanized (Cold Galvanizing)
  • Uniform, Dense & Well-Adhered Zinc Coating
  • Aesthetic Finish
  • Excellent Bending Performance
  • Passivation Treatment

Our electro-galvanized carbon steel tubes are widely used in industries where precision, aesthetics, and corrosion resistance are critical.

  • Automotive & Commercial Vehicles:

    • Chassis hydraulic systems

    • Air brake tubing and pneumatic systems

    • Fuel and coolant lines

  • Construction & Engineering Machinery:

    • Hydraulic systems for excavators, loaders, and cranes

    • Instrumentation and control lines

  • Precision Machinery:

    • Hydraulic systems requiring high precision

    • Pneumatic actuators and cylinders

  • Applications Requiring High Aesthetics & Anti-Corrosion Performance:

    • Finished equipment where surface appearance and rust prevention are essential

    • Customers demanding both visual appeal and long-term durability

By choosing our galvanized tubes, equipment manufacturers can enhance the overall appearance, anti-rust capability, and product quality of their finished machinery.

Technical

Item Specification
Base Material Seamless carbon steel tubes (bright annealed / precision drawn)
Coating Process Electro-galvanizing (cold galvanizing) – electrolytic deposition
Coating Color White (clear/blue passivation)Colored (yellow, black, or other custom colors available upon request)
Post-Treatment Passivation (trivalent chromium or environmentally friendly alternatives)
Coating Performance Uniform thicknessExcellent adhesionNo flaking or peeling under bending, flaring, or flattening tests
Standards ASTM A633 / A787DIN 2391 / EN 10305 (precision steel tubes with zinc coating)Custom standards available upon request
Outer Diameter (OD) 4 mm – 219 mm
Wall Thickness (WT) 0.5 mm – 25 mm
Length Fixed lengths 3–12 meters, or custom lengths per request
Electro-galvanized Layer Characteristics Uniform and denseStrongly bonded to base metalSmooth and bright surfaceEnvironmentally friendly processImproved corrosion resistance

Quality

Manufacturing Process:

The electro-galvanizing process uses electrolytic deposition to apply a zinc coating on bright carbon steel tubes.

Process Flow:
Precision Steel Tube → Degreasing → Pickling → Electro-Galvanizing → Passivation → Drying → Inspection

FAQ

1. What is electro-galvanized steel tube?
Electro-galvanized tubes are coated with zinc using electroplating process.

2. Is the coating suitable for bending?
Yes, the zinc coating will not peel during bending.

3. What color can you supply?
White zinc, yellow zinc, and blue-white zinc.

4. Are these tubes suitable for hydraulic systems?
Yes, widely used in hydraulic and automotive pipelines.

5. Is passivation available?
Yes, passivation improves corrosion resistance.

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