Galvanized Steel Pipe

Galvanized Steel Pipe is high-strength carbon steel tubing coated in zinc to provide long-lasting corrosion resistance. We offer both: Hot-dip galvanized pipes – dipped in molten zinc (~450 °C), forming a thick, molecularly bonded zinc layer Electro-galvanized pipes – zinc-plated using electrical current, with a smoother finish for indoor or light-duty use
We offer Galvanized Steel Pipe and related grades with 100% factory direct pricing and free quotes available within 6 hours.

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Product Introduction

Product Overview

Galvanized Steel Pipe is high-strength carbon steel tubing coated in zinc to provide long-lasting corrosion resistance. We offer both:

  • Hot-dip galvanized pipes – dipped in molten zinc (~450 °C), forming a thick, molecularly bonded zinc layer

  • Electro-galvanized pipes – zinc-plated using electrical current, with a smoother finish for indoor or light-duty use


Specifications at a Glance

  • Standards Compliant: ASTM A53, BS 1387, GB/T 3091, DIN 2440, JIS‑G3444, EN 10240/10255

  • Steel Grades: Q195, Q215, Q235, Q345, S235JR/S275JR, STK400/500

  • Zinc Coating Range:

    • Hot-dip: 60–275 g/m²

    • Electro: 80–275 g/m²

  • Shape & Size Options:

    • Round: Ø17–273 mm, wall thickness 0.6–12 mm

    • Square: 15–400 mm, wall 0.6–20 mm

    • Rectangular: 10×20–200×400 mm, wall 0.6–20 mm

  • Lengths: 2–5.8 m standard; also available in 6 m or 12 m, custom lengths on request


 Core Advantages

  1. Longevity & Low Maintenance
    A hot-dip coating endures 50+ years in typical environments and over 20 years in harsh marine areas, resisting rust and damage .

  2. Superior Corrosion Protection
    Zinc sacrificially protects the steel, even when coating is scratched .

  3. Cost-Efficient & Ready-to-Use
    More affordable than stainless steel, with no need for painting or upkeep post-installation .

  4. Tough & Reliable
    The metallurgical zinc bond resists chipping, scratching, and impact damage .

  5. Versatility
    Multiple shapes and sizes fit many construction, plumbing, and industrial applications.


Common Applications

  1. Plumbing & Gas Lines: Long-lasting water and gas distribution, ideal for municipal and residential systems.

  2. Construction & Structural Use: Widely used in scaffolding, structural frames, fencing, and handrails .

  3. HVAC and Mechanical: Reliable piping for HVAC systems, fire sprinkler networks, and industrial conduits .

  4. Agriculture & Outdoor Installations: Perfect for farm structures, greenhouses, outdoor supports, and marine environments .


 Available Grades & Models

  • ASTM A53

    • Includes Types F (butt-welded), E (ERW), S (seamless), Grades A & B — ideal for mechanical, plumbing, gas, air, and structural applications .

  • Q235 / S235JR / STK400

    • Common carbon-steel grades for strong, weldable, and formable pipes suitable for general structural and pipe-use cases.


 Why Choose Our Galvanized Steel Pipes?

  • All-round corrosion protection: Sealed even around edges and inside corners .

  • Built to last: Less maintenance, fewer replacements — great value over time.

  • Ready to install: No painting, no priming — install and go!

  • Flexible sizing: Custom shapes and lengths to fit exact project needs.

  • Certified quality: Compliant with international standards for safety and performance.


Let’s Build Together

Need expert advice on which pipe grade, coating thickness, or size best fits your project? Drop us a message — we’re ready to provide tailored specifications and free quotes to get you moving faster!

Luo Kaiwei Steel Company is a multi-ISO certified steel manufacturer specializing in carbon steel plates, pipes and galvanized coils since 2010. Competitive prices and ASTM/JIS compliant. Get instant quotes for bulk orders and global shipping support.

Luo Kaiwei Steel Company is a multi-ISO certified steel manufacturer specializing in carbon steel plates, pipes and galvanized coils since 2010. Competitive prices and ASTM/JIS compliant. Get instant quotes for bulk orders and global shipping support.

Tel: +86 15635685959

E-mail: [email protected]  

WhatsApp: +86 18912200505

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