As a direct Structural Welded Galvanized Steel Pipe factory supplier, we support full-size customization and deep processing services. Strict quality control is implemented in every production procedure to ensure qualified product quality. With reliable performance, competitive factory price and thoughtful after-sales service, our hot dip galvanized welded steel pipes have been exported to Europe, America, Southeast Asia, Middle East and other global markets, winning high recognition from overseas construction project buyers.
Product Information
| Specification Item | Detailed Parameters |
| Product Name | Structural Welded Galvanized Steel Pipe |
| Production Process | ERW Welded + Hot Dip Galvanized (Hot Dipped Zinc Coating) |
| Steel Grade | Q195, Q215, Q235B, Q345B (Customizable) |
| Executive Standard | GB/T 3091, EN10219, ASTM A53, BS1387 |
| Outer Diameter | DN15-DN300, 21.3mm-325mm, 1/2''-12'' |
| Wall Thickness | 2.5mm-10.0mm, Schedule 40 / Schedule 80 |
| Pipe Length | 6m, 12m, Custom fixed length (3m-18m) |
| Zinc Coating Weight | 80-600g/㎡ (70-85μm thick zinc layer, high anti-corrosion) |
| Shape | Round Welded Steel Pipe |
| Surface Treatment | Hot Dip Galvanized, Smooth Zinc Coating, No Zinc Spots, Uniform Surface |
| Weld Type | ERW Longitudinal Welded, Seamless Weld Joint, High Structural Stability |
Product Features & Advantages
| Advantage Dimension | Detailed English Description |
| Super Anti-Corrosion & Anti-Rust | Adopts professional hot-dip galvanizing technology, the zinc layer closely combines with the steel substrate, effectively isolating air and moisture. It greatly improves rust and corrosion resistance, suitable for outdoor, humid and harsh construction environments, service life up to 20-30 years. |
| High Structural Strength | Made of high-quality carbon steel Q235B/Q345B, with stable mechanical properties, high tensile strength and pressure resistance. The ERW welded process ensures smooth weld seam without cracks, no deformation under heavy load, perfect for building structural support. |
| Uniform & Beautiful Surface | Uniform zinc coating thickness, smooth and bright pipe surface, no burrs, no zinc accumulation. The standardized galvanizing process ensures consistent appearance of each pipe, meeting high-standard construction and decoration requirements. |
| Easy Processing & Installation | The galvanized steel pipe can be freely cut, bent, welded and threaded. With accurate size tolerance and flat pipe ends, it is convenient for on-site construction, greatly saving installation time and engineering cost. |
| Cost-Effective & Durable | Compared with seamless steel pipes, hot dip galvanized welded steel pipes have lower price with equivalent structural performance. Long service life reduces later maintenance and replacement costs, which is the preferred material for large-scale construction projects. |
Wide Application Scope
| Application Field | Specific Usage Scenarios |
| Building Construction Structure | Building frame support, steel structure engineering, factory workshop construction, residential building structural parts |
| Outdoor Engineering | Construction fencing, guardrail support, street light pole base, outdoor steel frame structure, landscape engineering |
| Water Supply & Fire Protection | Construction site water supply pipeline, fire fighting pipeline system, low-pressure fluid transmission pipeline |
| Greenhouse & Warehouse | Agricultural greenhouse frame, warehouse steel structure support, storage shelf steel pipe bracket |
| Infrastructure Engineering | Road and bridge auxiliary structure, municipal construction project, engineering equipment support frame |
Factory Supply & Service Terms
| Service Item | Description |
| Supply Capacity | Professional galvanized steel pipe factory, annual output 500,000 tons, sufficient stock, support bulk wholesale and customized order |
| Custom Service | Custom outer diameter, wall thickness, length, zinc coating weight; support cutting, threading, grooving, end flattening processing |
| Quality Inspection | 100% factory inspection, third-party inspection supported, provide ISO certificate, material test report (MTR) |
| Packaging | Standard seaworthy export packing, bundled with steel strips, waterproof cloth wrapped, suitable for long-distance sea transportation |
| Delivery Time | Stock goods within 3-7 days, customized orders 7-15 working days |
| Trade Terms | FOB, CFR, CIF, EXW, support multiple payment terms, flexible trade cooperation |
| After-Sales Service | 24-hour online service, product quality problem compensation, professional technical guidance for construction installation |
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