Hot-Dip Galvanized Steel Pipe

$5.00 | 100 kg (Min.Order)

Product Introduction:

Hot-dip galvanized steel pipe (HDG pipe) is a high-performance tubular product processed through the hot-dip galvanizing technique. Selected carbon steel pipes go through pickling, surface cleaning and full immersion in high-temperature molten zinc, forming a combined zinc-iron alloy layer on both inner and outer surfaces.
The integrated coating is firm, scratch-resistant and provides dual physical and electrochemical protection. It effectively resists oxidation, moisture and various corrosive substances in outdoor and humid environments. Our products comply with international and domestic industry standards, with complete specifications and customizable pipe ends, lengths and wall thicknesses.
Thanks to reliable quality, excellent durability and cost efficiency, hot-dip galvanized steel pipes are the preferred choice for building water supply and drainage, fire sprinkler systems, municipal pipelines, agricultural irrigation, industrial fluid conveyance, fences, railings and other outdoor steel structures.

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Description

Technical Parameters

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Hot-Dip Galvanized Steel Pipe – Full Introduction

1. Product Process

Hot-dip galvanized steel pipe takes high-quality carbon steel as raw material. The production flow includes pickling, rust removal, surface cleaning, hot-dip galvanizing, cooling and finishing. The whole pipe is fully soaked in molten zinc, forming a uniform, tough and scratch-resistant protective layer inside and outside. This process realizes permanent bonding between zinc layer and steel pipe.

2. Core Features & Advantages

Superior corrosion resistance: Dual physical and electrochemical protection effectively prevents rust and erosion, suitable for long-term outdoor service.

High structural stability: Excellent tensile strength, pressure resistance and impact resistance, safe for pipeline operation.

Full coverage protection: No blind spots on inner wall, outer wall and pipe ends.

Low maintenance cost: Long service life, rarely needing repair or replacement.

Good workability: Supports threading, grooving, cutting and welding for convenient installation.

3. Executive Standards & Specifications

Our products comply with GB/T 3091, ASTM A53 and other international standards. Available materials include Q195, Q235B and Q355B. Pipe diameters range from DN15 to DN300, with customizable wall thickness and length. Multiple pipe end types are optional: plain end, bevelled end, threaded end and grooved end.

4. Main Applications

This product is extensively applied in residential and commercial building water supply & drainage, fire protection systems, municipal infrastructure, farmland irrigation, factory fluid delivery, greenhouses, guardrails, fences and temporary construction supports.