Galvanized Steel Pipe

Galvanized steel pipe is made by coating steel pipes with a layer of zinc to protect them from corrosion and rust. The galvanization process can be either hot-dip galvanizing, where the steel pipe is submerged in molten zinc, or electro-galvanizing, which uses an electrochemical process to apply the zinc coating. This coating acts as a barrier against environmental factors that can cause corrosion.


StandardASTM A53/A500, EN39, BS1139, JIS3444, GB/T3091-2001
MaterialS235GT, S355, STK400, STK500, Q345/Q235
Size/Diameter1/2″-12″ (21.3-323.9mm)
Wall thickness (W.T.)0.8-10.0mm
Length6.0M, 6.5M, 5.0M, 4.0M, 3.0M, 6.5M,1m-12m ,by customer’s requiremnts
Internatioanal StandardISO 9000-2001, CE CERTIFICATE, BV CERTIFICATE
Product CategoryMetallurgy, Mineral & Energy
Packing1.Big OD:in bulk; 2.Small OD:packed by steel strips; 3.woven cloth with 7 slats; 4.according to the requirements of customers
Main marketMiddle East, Africa, Asia, Europe, South America, Australia

Typical Chemistry:

The chemical composition of galvanized steel pipe typically includes:

  • Base Steel: Low carbon steel or mild steel
  • Zinc Coating: Pure zinc (Zn), which may sometimes include small amounts of other elements such as aluminum (Al) to enhance coating properties.

Physical Properties:

The physical properties of galvanized steel pipe depend on the base steel and the thickness of the zinc coating. Typical properties include:

  • Tensile Strength: 350-550 MPa, depending on the grade of the base steel
  • Yield Strength: 230-400 MPa
  • Elongation: Approximately 20-30%
  • Corrosion Resistance: Excellent due to the zinc coating
  • Thickness of Zinc Coating: Usually between 40 to 85 microns
  • Density: Approximately 7.85 g/cm³ for the base steel


Key features of galvanized steel pipe include:

  • Corrosion Resistance: The zinc coating provides a protective barrier that prevents rust and corrosion, extending the pipe’s lifespan.
  • Durability: Galvanized steel pipes are strong and durable, capable of withstanding high pressures and harsh environmental conditions.
  • Versatility: Suitable for a wide range of applications across various industries.
  • Economical: Provides a cost-effective solution for corrosion protection compared to more expensive materials like stainless steel.
  • Ease of Installation: Galvanized steel pipes can be easily cut, threaded, and joined, making them convenient for installation in various systems.
  • Low Maintenance: The corrosion-resistant properties of the zinc coating reduce the need for frequent maintenance and replacements.
  • Recyclability: Galvanized steel pipes are recyclable, contributing to sustainable construction practices.

Our Certifications

Packaging and Shipping

1. Wood pallet packing cover with water-proof paper
2. Steel pallet packing cover with water-proof paper
3. Wood box packing
4. Steel pallet packing cover with steel box
5. In bundles with steel strip no extra packing

package and shipment


  • High Precision Dimension: The carbon steel profile has excellent processing technology good molding and easy welding. Thickened material, stable performance, and high hardness, not easy to rust.
  • Low Friction: Low dissipation factor. More durable than most ordinary domestic bearings. Lower operating costs​
  • Life Is Long: High-quality steel through strict quality inspection, quality control layer-by-layer detection, and reliable quality, long service life.
  • Customization: Drawings and samples can be processed and customized. Conventional large-scale spot, non-standard customization.
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