25mm galvanized steel pipe is a widely used small and medium-diameter pipe for water supply, drainage, fire protection, gas and general industrial transportation. With hot-dip or electro-galvanized coating, it features high strength, long service life, cost-effectiveness and easy installation, ensuring stable performance for 20-30 years in outdoor and humid conditions. Wanzhi Group supplies galvanized welded, seamless, round, square, rectangular and special-shaped galvanized pipes with complete specifications and customized services. Boasting an annual output of over 600,000 tons, our products are exported to over 120 countries and regions worldwide.
Specification
| Product Name | 25mm Galvanized Steel Pipe |
|---|---|
| Diameter | 25.0mm |
| Wall Thickness | 1.5mm - 4.0mm |
| Length | 5.5m, 5.8m, 6m, 11.8m, 12m, Customized. |
| Zinc Coating | 30 - 275g/m2 |
| Galvanizing Type | Hot-dip Galvanized / Electro Galvanized |
| Tolerance | Wall thickness: ±0.05mm, Length: ±6mm, Diameter: ±0.3mm |
| Material | Q195、Q235B、Q345、S235JR、S275JR、S355JR、a35、a36 |
| Processing Service | Welding, cutting, bending, threading, punching, spraying, etc. |
| Working Pressure | 1.0–1.6 MPa |
| Standard | GB, ASTM, JIS, EN |
| MQQ | 10 tons |
| Package | Standard export packing or as client required |
WanZhi 25mm Galvanized Steel Pipes For Sale
Are you looking for 25mm galvanized steel pipes for your projects? As an ISO-certified professional manufacturer and supplier in China, Wanzhi owns 2 complete galvanizing production lines with sufficient inventory and full-size specifications. We offer wholesale prices and flexible delivery within 5 to 45 days based on order quantity. In addition to 25mm galvanized steel pipes, we also provide galvanized round pipes, galvanized square steel, carbon steel pipes, welded pipes, spiral steel pipes and other diversified products in various sizes. Please feel free to contact us if you have any inquiries.
25mm Galvanized Steel Pipes Price
The price of galvanized steel pipes is affected by raw material costs, galvanizing processes, zinc coating thickness, pipe specifications and other factors. The price ranges from 600 to 1000 USD per ton. 25mm galvanized pipe weight calculation: [Outer diameter(mm)-Wall Thickness(mm)]*Thickness(mm)*Length(m)*0.02466= (kg/pcs). Kindly leave your requirements, and Wanzhi Group will promptly provide you with competitive quotations and professional one-stop overall services.
Hot-dip Galvanized VS Electro Galvanized Steel Pipes
Hot-dip galvanized steel pipes have a thick zinc layer, outstanding corrosion resistance and long service life for outdoor and harsh environments.
Electro galvanized pipes feature a thin, bright coating with lower cost, ideal for dry indoor and decorative applications.
| Item | Hot-dip Galvanized Pipe | Electro Galvanized Pipe |
| Zinc Layer | Thick (60–120μm) | Thin (10–30μm) |
| Corrosion Resistance | Strong, suitable for wet & outdoor | Weak, only for dry indoor |
| Service Life | 20–30 years | 3–5 years |
| Surface | Matte, zinc spangle | Smooth, bright & beautiful |
| Cost | Higher | Economical |
| Application | Outdoor, water, fire, irrigation, municipal | Indoor decoration, cable pipe, dry area |
| Coating Adhesion | Tight combination, not easy to fall off | Weak adhesion, easy to peel |
Advantages And Usages Of 25mm Galvanized Steel Pipes
Advantages
- Excellent Corrosion Resistance: Hot-dip zinc coating forms a protective layer, effectively preventing rust and oxidation in humid, outdoor and water contact environments.
- Long Service Life: Durable zinc anti-rust treatment ensures 20–30 years of service life, greatly reducing replacement and maintenance costs.
- High Mechanical Strength: Made of premium carbon steel with stable hardness and pressure resistance.
- Cost-Effective: Reasonable price with comprehensive performance, lower long-term operating cost than plastic and stainless steel pipes.
- Easy Processing & Installation: Light weight, standardized size, easy cutting, threading, welding and quick on-site construction.
- Stable Surface Performance: Smooth galvanized surface, anti-fouling, not easy to scale, keeping smooth fluid delivery.
Usages
- Water Supply & Drainage: Residential and commercial cold water pipelines, daily water delivery and drainage systems.
- Fire Protection System: Fire sprinkler pipes, fire hydrant branch pipes and building fire fighting piping works.
- Gas & Air Conveyance: Low-pressure natural gas, compressed air and general industrial gas transmission.
- Agricultural Irrigation: Farm irrigation pipes, garden water supply and rural water conservancy projects.
- Construction & Building Works: Building frame pipelines, wall embedded pipes and outdoor outdoor engineering piping.
- Cable Protection: Electrical cable conduit, protecting wires from damage and corrosion.
- General Industrial Use: Factory fluid transportation, equipment matching pipelines and mechanical supporting structures.
- Municipal & Public Facilities: Community supporting works, municipal greening and public facility piping projects.
WanZhi Galvanized Pipes & Tubing Products
Galvanized Pipe Products: Wanzhi customizes and manufactures a full range of galvanized products tailored to project requirements, including galvanized round pipes, galvanized square pipes, and galvanized pipe fittings, featuring excellent anti-corrosion performance.
Other Tubing & Pipe Fitting Products: We also supply seamless pipes, spiral pipes, oval pipes, corrugated pipes, carbon steel pipes, plastic-lined pipes and stainless steel coiled pipes. Custom pipes with various materials and surface treatment options are also available.
Feel free to contact us at any time to get detailed specifications, technical performance parameters and competitive factory quotations!
GI Steel Pipe Manufacturer – WanZhi Steel
As a trusted manufacturer of galvanized steel pipes, Wanzhi Group adopts standardized hot-dip and electro-galvanizing processes. All products undergo strict raw material inspection, pickling and surface passivation to deliver stable anti-corrosion and rust-resistant performance. We supply raw materials for global galvanized pipe processors and finished galvanized steel pipes to customers in construction, machinery and other industries worldwide.
Factory
Wanzhi operates two professional galvanizing production lines. The zinc coating weight ranges from 30g to 275g per square meter, with an average monthly output of about 20,000 tons. Besides galvanized steel pipes, we also supply galvanized and galvalume steel sheets, coils, strips, roof sheets and PPGI/PPGL coils in various sizes. Custom processing services including cutting, bending, stamping and forming are also available.
Quality Inspection
Our factory has passed ISO management system certification. We implement full-process strict quality control, covering raw material incoming inspection, production monitoring and finished product testing. Each batch comes with material certificates. Third-party on-site inspections for zinc coating thickness, surface condition, dimensional tolerance and mechanical properties are arranged before delivery.
Customized Services
Wanzhi Group supplies galvanized products complying with international standards including GB, JIS and EN to over 120 countries and regions worldwide. Equipped with a sample room, laboratory and complete production lines, we provide one-stop customized services from raw materials and production to finished products, helping customers cut costs while ensuring stable quality. The minimum order quantity is 10 tons.
Packages
Wanzhi’s galvanized steel products come in various packaging types, such as plastic film, moisture-proof paper, and galvanized iron sheets, with a variety of custom styles available for selection.
Global Cases
Our products are sold across the globe, including PPGI corrugated steel sheet, metal roofing sheets, pre painted galvanized sheets/coils, stainless steel and so on. We have established long-term stable cooperative partnerships with markets in Indonesia, Libya, Kazakhstan, Turkey, the UAE, Chile, Colombia, Ecuador, Brazil and other regions.
Wanzhi Steel – Agricultural Greenhouse Project in Turkmenistan
550 tons PPGI Steel Coil to Azerbaijan
100 tons of Galvanized Coils to Saudi Arabia
144 ton Steel Wire to Spanish
Project of PPGI Roofing en Libya
100 tons of GL and PPGL in Solomon Islands
If you have any questions about the zinc coating, dimensions and specifications of 25mm galvanized steel pipes, or if you are interested in our other galvanized and galvalume products, welcome to contact us anytime!