Product Brief Introduction
Galvanized welded water pipe is a high-quality welded steel pipe processed with professional hot-dip galvanizing technology. It is manufactured by rolling steel strips into tubular shapes and forming firm weld seams, then undergoing high-temperature galvanizing treatment to form a dense anti-corrosion zinc layer on the pipe surface. This product features excellent rust resistance, high structural strength, smooth inner wall and stable performance. It is widely used for residential, commercial and industrial water supply systems, plumbing projects and low-pressure fluid transmission. Strictly manufactured in line with international standards, it guarantees long-term service life and safe water delivery.
Production Standards
ASTM A53 Gr.B, EN 10217, EN 39, BS1387, GB/T 3091, BS1139, ASTM A500.
Raw Material
Q195, Q215, Q235B, Q345 Carbon Steel (High-strength low-carbon steel, stable mechanical properties).
Galvanizing Type & Zinc Layer Thickness
1. Hot Dipped Galvanized (HDG): 40μm - 600μm zinc coating, super anti-corrosion.
2. Electro Galvanized: 5μm - 15μm zinc coating, cost-effective for indoor use.
Size Specifications
Outer Diameter: 20mm - 610mm (1/2 inch - 24 inch).
Wall Thickness: 1.0mm - 20mm (SCH40, SCH80 standard thickness available).
Standard Length: 6m, 12m; Custom length (1m-12m) supported.
Nominal Diameter: DN15 - DN200.
Pipe End Processing
Plain end, Bevelled end, Threaded end, With PVC socket, Pipe cap protection.
Mechanical Performance
Tensile Strength: ≥415MPa (60000psi).
Yield Strength: ≥240MPa (35000psi).
Elongation: ≥20%.
No crack, no leakage, high pressure resistance for water transmission.
Core Product Advantages
| No. | Core Advantage | Detailed Description |
| 1 | Superior Anti-Corrosion Performance | The complete and uniform hot-dip zinc layer tightly covers the surface of the galvanized welded water pipe, effectively isolating air, moisture and corrosive substances. It prevents rust, oxidation and surface damage, and extends the service life up to 30 years, fully meeting the long-term use needs of indoor and outdoor water supply projects. |
| 2 | Stable & Premium Weld Quality | Adopts advanced high-frequency welding technology with full penetration welding process. The weld seam of the welded steel pipe is smooth, flat and burr-free, with uniform pipe wall thickness. It realizes zero leakage and high structural stability, ensuring safe and stable transmission of water fluid. |
| 3 | Smooth Inner Wall & Efficient Water Delivery | The precision forming process creates an ultra-smooth inner wall of the galvanized water pipe, with extremely low water flow resistance. It significantly improves water delivery efficiency, reduces pipeline pressure loss, and effectively avoids scaling and dirt accumulation during long-term operation. |
| 4 | Excellent Toughness & Pressure Resistance | Made of high-quality carbon steel with stable mechanical properties, the galvanized welded water pipe has high tensile strength, good toughness and strong pressure resistance. It is not easy to deform or crack under the working conditions of low-pressure water supply, and adapts to various complex pipeline laying environments. |
| 5 | Flexible Processing & Easy Installation | The steel pipe supports custom cutting, threading, bending and grooving, and is compatible with a variety of conventional construction connection methods. It greatly reduces the difficulty of on-site construction and improves the installation efficiency of water supply pipeline projects. |
| 6 | Eco-Friendly & Safe for Drinking Water | The food-grade safe zinc coating is non-toxic, tasteless and pollution-free. It fully complies with international drinking water transmission standards, ensuring clean and safe water supply for residential, commercial and public building plumbing systems. |
Application Scenarios
| No. | Application Field | Detailed Description |
| 1 | Residential Plumbing | Household water supply‑drainage engineering, residential building plumbing systems, indoor & outdoor domestic water delivery for apartment and villa projects |
| 2 | Commercial Construction | Water pipeline for office buildings, shopping malls, hotels and other commercial buildings, supporting daily domestic water circulation |
| 3 | Municipal Water Supply | Municipal water supply projects, rural water reform projects, public facility water distribution pipelines |
| 4 | Industrial Fluid Transfer | Low‑pressure fluid transmission in general industrial workshops, non‑corrosive medium conveying pipeline |
| 5 | Fire‑fighting System | Fire protection water pipeline for building fire‑fighting supporting projects |
| 6 | Landscape & Irrigation | Garden irrigation, park greening water delivery, farmland water supply pipeline |
Quality Inspection & Certification
100% factory inspection, Hydrostatic pressure test, Eddy current test, Zinc layer thickness test, Dimension tolerance test; SGS certified, comply with international import and export quality standards.
Trade Terms & Service
Port: Tianjin Port, Qingdao Port, Shanghai Port.
Trade Terms: FOB, CFR, CIF, EXW.
Payment: T/T, L/C, Western Union.
Supply Capacity: 5000 tons per month, fast delivery.
Custom Service: Custom size, custom zinc layer thickness, custom packaging.
Packaging Details
Standard export packaging: Bundled with steel strips, covered with waterproof woven bag, pipe ends protected by plastic caps to avoid damage and rust during transportation
After-Sales Service
7*24 hours online consultation, free product sample support, professional technical guidance, complete after-sales guarantee, solve customer installation and quality problems in time
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