A53 schedule 40 pipe
A53 schedule 40 pipe
A53 schedule 40 pipe
A53 schedule 40 pipe
A53 schedule 40 pipe
A53 schedule 40 pipe (3)
A53 schedule 40 pipe
A53 schedule 40 pipe
A53 schedule 40 pipe
A53 schedule 40 pipe

Pre-Galvanized Steel Pipe – GI Pipe A53 Schedule 40 Round Tube

Pre-Galvanized Steel Pipe – GI Pipe A53 Schedule 40 Round Pipe

Durable pre-galvanized steel pipe manufactured per A53 Schedule 40 standard, available in 12.7mm to 219.1mm outer diameter. Ideal for low-pressure piping, fencing, greenhouse, and structural uses.

Gengfei Steel is an experienced steel supplier, providing the best prices and services.

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Description

What is the Pre-Galvanized Steel Pipe?

Pre-Galvanized Steel Pipe, also known as GI Pipe, is manufactured using hot-rolled or cold-rolled ERW technology and galvanized before forming the pipe. This process provides uniform zinc coating on the strip surface, giving the pipe good corrosion resistance, attractive appearance, and excellent formability.

This pipe conforms to international standards such as ASTM A53, BS 1387, and GB/T3091, and is suitable for both residential and industrial piping systems.

Technical Parameters of Pre Galvanized Steel Pipe

Item Specification
Product Name Pre-Galvanized Steel Pipe / GI Pipe / A53 Schedule 40 Round Pipe
Outer Diameter (OD) 12.7 mm – 219.1 mm
Wall Thickness (WT) 0.6 mm – 2.5 mm
Length 1 m, 4 m, 6 m, 8 m, 12 m or as per customer request
Pipe Ends Plain, Beveled, Threaded with Couplings or Sockets; Plastic Caps or Steel Rings
Standard ASTM A53 SCH 40/80, GB/T3091-2001, BS 1387, DIN EN10025, EN10219, JIS G3444
Grade Q195, Q215, Q235, Q345, S235JR, GR.B–D, STK500
Technique ERW (Electric Resistance Welded), Hot or Cold Rolled
Surface Treatment Pre-galvanized coating on strip before forming
Zinc Coating 30–275 g/m² (typically thinner than hot-dip galvanized)
Package Covered with tarpaulin, packed in containers or bulk as required
Certification CE, ISO9001, SGS, BV, API
Delivery Time In stock or 10–45 days after advance payment

Features of Pre Galvanized Steel Pipe

  • Uniform and clean zinc coating, smooth surface

  • Lightweight yet durable – suitable for welding and cutting

  • Cost-effective alternative to hot-dip galvanized pipe

  • Excellent corrosion resistance for indoor and light-duty outdoor use

  • Conforms to global piping and structural standards

Applications of Pre Galvanized Steel Pipe

  • Water and gas pipeline systems (low-pressure)

  • Fence posts and frames

  • Greenhouse and agricultural piping

  • Furniture and lightweight steel structures

  • Interior decorative pipework

  • Scaffolding and temporary structures

galvanized pipe application

Pre-Galvanized vs Hot-Dip Galvanized Pipe

Feature Pre-Galvanized Pipe Hot-Dip Galvanized Pipe
Zinc Coating Method Galvanized before pipe forming Immersed after pipe forming
Zinc Thickness 30–275 g/m² (typically 40–70 g/m²) 50–500 g/m² (typically >200 g/m²)
Surface Finish Smooth, uniform, shiny Rougher, matte gray
Corrosion Resistance Moderate (for indoor/light-duty use) High (for outdoor/heavy-duty use)
Cost More economical Higher cost

Procurement Guide

  • Confirm the required OD and wall thickness per your design

  • Choose pipe ends (plain, beveled, or threaded)

  • Select grade and standard based on usage environment and compliance needs

  • Specify quantity and packing preference

  • Ask for cut-to-length, custom coating, or accessory supply (flanges, sockets, etc.)

Products Test and Quality Control

Products Test and Quality Control

Get a Fast Quote

Looking for a reliable galvanized steel pipe supplier in China? Gengfei Steel is your trusted source. Contact our team now for free samples, pricing, or custom production support.

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