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Hot Dipped Galvanized Steel Pipe / Galvanized Steel Tube for Construction Water Supply & Pipeline Projects
Product Introduction
Galvanized steel pipe, also known as galvanized steel tube, is a steel pipe product coated with a zinc layer on the surface of carbon steel pipe. We mainly provide hot-dipped galvanized steel pipes. The hot-dip galvanizing process immerses the steel pipe in molten zinc liquid to form a uniform and dense zinc coating on the pipe surface, which can effectively isolate the steel substrate from air, water and corrosive substances. Our products strictly follow national and international standards, with complete specifications and stable quality, supporting customized size processing.
Core Product Data
| Parameter | Specification |
| Material | Q235B, Q195, 20# Carbon Steel |
| Galvanizing Process | Hot Dipped Galvanized |
| Zinc Coating Thickness | 85-120μm |
| Outer Diameter | DN15-DN200 (1/4 inch - 8 inch), Customizable |
| Wall Thickness | 2.0mm - 8.0mm |
| Standard Length | 6 meters per piece, Custom cutting available |
| Standard | GB/T3091-2015, ASTM A53, BS1387 |
| Surface Treatment | Galvanizing and passivation, Anti-white rust treatment |
Product Advantages
1. Excellent Corrosion Resistance: The thick and closely bonded zinc layer blocks erosion from atmosphere, water and chemical media, extending service life by 3-5 times compared with ordinary steel pipes.
2. Stable Mechanical Properties: High strength and rigidity, can bear pressure, weight and external impact, suitable for pressure pipeline systems.
3. High-Quality Hot-Dip Galvanizing: Zinc layer is uniform and dense, tightly combined with steel matrix, not easy to fall off; zinc coating thickness reaches 85-120μm.
4. Cost-Effective: While providing superior anti-corrosion performance, the product has reasonable price and low later maintenance cost.
5. Customizable Service: Support customized outer diameter, wall thickness, length and surface processing according to project demands.
FAQs
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Q1：What is the difference between hot-dipped galvanized pipe and cold galvanized pipe?
A1：Hot-dipped galvanized pipe has thicker zinc layer (85-120μm), strong anti-corrosion ability, long service life, suitable for outdoor and heavy corrosion environment; cold galvanized pipe has thin zinc layer, poor anti-corrosion performance, only for indoor short-term use.
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Q2：Can your galvanized steel pipes be used for water supply pipeline?
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Q3：Do you support custom sizes and bulk orders?
Application Scenarios
Our galvanized steel pipes are widely used in construction, machinery, coal mine, chemical industry, electric power, highway, bridge, container, agricultural machinery, petroleum machinery and other fields.
1. Construction Industry: Water supply & drainage system, heating pipeline, scaffolding, guardrail production;
2. Chemical Industry: Conveying low-corrosive chemical media;
3. Electric Power Industry: Cable tray, wire conduit, power support structure;
4. Infrastructure Projects: Highway guardrail, bridge pipeline, municipal engineering;
5. Other Fields: Container manufacturing, agricultural machinery, petroleum machinery manufacturing.
Product Specifications
| Parameter | Capability / Specification |
| Outer Diameter Range | Ø10.3 mm – 2032 mm |
| Wall Thickness | 0.5 mm – 80 mm |
| Process | ERW/HFW base pipe + In-line or batch Hot-Dip Galvanizing |
| Standards | ASTM A53, ASTM A123, EN 10240, EN 10305, JIS G3444, etc. |
| Zinc Coating | Heavy coating available, compliant to specified class requirements. |
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