Name: China Pre-Galvanized Iron Pipe (GI Pipe) Q195/Q235 12.7-408 mm Manufacturers Suppliers Factory - Pre-Galvanized Iron Pipe (GI Pipe) Q195/Q235 12.7-408 mm for Sale - Gnee Steel
Brand: GNEE
SKU: 226574703

Pre-galvanized iron pipe

Pre-galvanized iron pipe (pre-gal GI pipe) is mild-steel tubing coated with zinc - typically 80-120 g/m2 - before it is formed, which protects the surface during fabrication and in mild outdoor use. GNEE STEEL supplies it in Q195/Q235 and equivalent grades, in round, square, and rectangular shapes, welded by ERW, for fencing, structures, furniture tubing, and utility lines.

Product Overview
Pre-galvanized pipe starts as zinc-coated strip that is then rolled and welded, so the coating is applied uniformly to the flat sheet before shaping. This makes it economical where cut edges are not exposed to heavy corrosion. It is widely chosen where appearance and basic rust protection matter more than immersion-grade durability.

Materials and Grades
GNEE STEEL supplies common mild-steel grades Q195 and Q235, with SS400, Q345, and S275 available on request. These low-carbon grades weld and form easily, making them ideal for structural and decorative tubing.

galvanized iron square pipe

Galvanized Pipe Specification

Name	Galvanized iron gi pipe
Application	Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, OIL PIPE, Chemical Fertilizer Pipe, Structure Pipe
Diameter	12.7mm - 408mm
Thickness	0.1-50mm
Length	12M, 6m, customized
Technique	ERW
Grade	Q195/Q235/SS400/Q345/SS355/S275
Surface Treatment	galvanized
Delivery Time	8-14 days
Surface	Customers't Requirement
Shape	Square. Rectangular.Round
Material	Q195/Q215/Q235/Q345/#20/#45
Usage	Building Construction
Packing	STANDARD PACKING
Process	Accept Customize Produce Depend

galvanized iron gi pipe

Detailed Applications

1.Fencing and rails: Pre-gal pipe is the backbone of cost-effective perimeter fencing and handrails.

2.Furniture and display: Its clean surface suits retail fixtures and furniture frames.

3.Greenhouse and agriculture: Lightweight galvanized tubing resists weather in frames and shelters.

4.Building structures: Used for decorative and secondary structural tubes.

5.Utility lines: Suitable for low-pressure fluid, gas, and conduit where corrosion is mild.

dip galvanized steel pipe factory

Pre-galvanized vs Hot-dip Galvanized

Pre-galvanized pipe is coated before forming (uniform surface, exposed cut edges). Hot-dip galvanized pipe is coated after forming, protecting the whole part including edges - better for harsher, immersed, or cut-intensive service.

Purchasing Guide

Confirm diameter, wall thickness, length, and shape. For outdoor or cut-heavy projects, consider hot-dip galvanized or post-galvanizing the cut ends. MOQ and price depend on size and finish.

Quality and Documents

GNEE STEEL can arrange mill test reports and third-party inspection (SGS/BV) as needed. Pipes are packed to standard export practice.

Galvanized steel pipe packaging:

gi iron pipe

Galvanized pipe Customer case:

galvanised iron pipe supplier

GNEE STEEL company introduction:

GNEE STEEL Import and Export Co., Ltd. is a professional and experienced steel supplier and exporter that can produce according to ASTM, JIS, DIN, API standards. We have exported to Australia, Doha, Sri Lanka, India, Turkey, Kyrgyzstan, Russia, Canada, Poland, Middle East countries and African countries, and we have received a good reputation from all our cooperative customers.

gnee

We mainly produce and sell various steel pipes, including welded pipes/galvanized steel pipes/pre-galvanized steel pipes/square and rectangular hollow profiles/furniture pipes/greenhouse pipes/ dip galvanized steel pipe/stainless steel pipes, etc.; steel coils include pre-galvanized steel coils and stainless steel coils. We also deal in various products, such as galvanized processing parts/photovoltaic brackets/photovoltaic accessories, etc.

Contact the Galvanized Steel Pipe Experts at GNEE STEEL:

GNEE STEEL is committed to providing our customers with the best selection of steel pipe and tubing products. Our knowledgeable staff is dedicated to helping you find the steel pipe products that fit your needs.

Contact us to discuss which galvanized structural steel pipe or other steel pipe options are best for your next project, or request a quote today for an in-depth pricing analysis. Still have questions? Contact us today at +86 158 2468 7445!

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