Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of 76-660mm erw zinc coated pipe outdoor water supply pipeline tube in China. Welcome to buy discount 76-660mm erw zinc coated pipe outdoor water supply pipeline tube made in China here from our factory. Quality products and low price are available.
Product introduction
Product Overview
Our ERW zinc coated steel pipes ranging from 76mm to 660mm outer diameter are specially manufactured for outdoor municipal and residential water supply pipeline projects. Produced via electric resistance welding technology and processed with hot-dip galvanized anti-corrosion treatment, this series integrates stable structural strength and outstanding rust resistance to adapt to long-term outdoor buried and exposed water delivery environments.
The uniform zinc coating forms a dense protective layer on both inner and outer pipe surfaces, effectively isolating water, soil, oxygen and corrosive substances. The pipes comply with international water supply pipe standards, widely used in urban outdoor water distribution networks, community outdoor water pipelines, park water supply systems and rural water transformation projects. Factory direct supply supports bulk project orders with customizable wall thickness, length and pipe end connection methods.
Production Process
Hot rolled steel coil slitting Low carbon steel strips are cut from qualified hot rolled coils, chemical composition strictly controlled to meet water pipeline material requirements.
Continuous cold forming Steel strips are rolled into round tube blanks through multi-pass forming machines to guarantee precise circularity and dimensional consistency.
ERW longitudinal welding Electric resistance welding creates seamless straight weld seams; narrow heat-affected zone avoids weld cracking under long-term water pressure.
Internal and external weld bead trimming Protruding welding beads inside and outside the pipe are fully polished to eliminate dead corners that may accumulate impurities.
Sizing and straightening Online sizing and straightening processes control OD tolerance and pipe straightness within standard limits.
Hydrostatic pressure & eddy current NDT inspection Each pipe undergoes water pressure test to verify pressure resistance, together with full-length flaw detection to rule out welding defects.
Cutting to specified length Pipes are cut into standard 6m/12m random lengths or customized fixed lengths per project drawings.
Hot-dip galvanizing treatment Cleaned steel pipes are soaked in molten zinc liquid to form uniform, thick zinc coating on inner and outer walls, followed by cooling and surface finishing.
Finished product sampling test Sampling for coating thickness, adhesion, tensile and hydraulic performance tests before delivery.
Technical Specifications
Executive Standards
Welding Process: ERW Electric Resistance Welded Surface Treatment: Hot-dip zinc coated galvanized Main Application: Outdoor buried/exposed drinking & domestic water supply pipelines Applicable Standards: ASTM A53, BS 1387, ISO 65
Dimension Scope
Outer Diameter: 76mm – 660mm Wall Thickness: 2.5mm – 26mm, custom SCH thickness available Standard Length: 6m, 12m random lengths; customized length 1.5m–18m Dimensional Tolerance: OD, wall thickness and straightness fully meet pipeline industry tolerance requirements
Zinc Coating Performance
Average Coating Thickness: 85μm minimum Strong coating adhesion, no peeling or flaking during bending and cutting Anti-rust service life up to 30+ years for outdoor buried water supply
Mechanical & Hydraulic Performance
Minimum yield strength: 240MPa Minimum tensile strength: 370MPa Burst pressure and working pressure fully meet outdoor water pipeline design standards Pass flattening and bending tests without crack occurrence
Product Advantages
Superior Outdoor Anti-Corrosion Performance Full inner and outer hot-dip zinc coating resists soil corrosion, rainwater oxidation and underground chemical erosion, ideal for long-term outdoor laying.
Safe Water Delivery Smooth polished inner wall prevents scaling and impurity deposition, zinc layer meets drinking water contact safety standards without secondary pollution.
Stable ERW Weld Structure Solid straight weld with full NDT inspection, resistant to water hammer and long-term continuous water pressure without leakage risk.
Complete Size Coverage Full OD range 76–660mm covers main specifications of municipal outdoor trunk and branch water supply pipelines, supporting one-stop project procurement.
Flexible Connection Customization Threaded ends, beveled ends and flange connection ends can be customized to match on-site pipeline construction requirements.
Low Maintenance Cost Long anti-rust service cycle reduces later pipeline repair and replacement costs for municipal and real estate projects.
Mass Factory Supply Capacity Large automatic galvanizing production lines support full-container bulk orders with stable delivery schedules for large water supply engineering projects.
Application Fields
Municipal urban outdoor buried tap water main pipelines
Residential community outdoor water supply branch pipelines
Industrial park, campus and scenic spot outdoor water distribution systems
Rural safe drinking water renovation and outdoor transmission pipelines
Agricultural irrigation outdoor water delivery pipelines
Commercial plaza and public facilities exposed water supply piping
Real estate project outdoor underground water supply network
Packaging & Shipment
Packaging: Bundled with steel packing strips; plastic protective caps fitted on both pipe ends to prevent scratch and foreign matter entry.
Surface Protection: Light anti-rust oil can be coated on zinc layer upon customer demand for long sea transportation.
Shipping Options: FCL container shipment for medium orders; bulk vessel loading for super large water supply project bulk orders.
Loading Protection: Soft pads used during loading to avoid scratch and damage to galvanized coating.
Custom Marks: Project name, specification labels and export standard shipping marks can be printed on bundles as required.
Quality Assurance & Service
Full ISO quality control system implemented through all production and galvanizing procedures.
Complete mill test certificates, coating inspection reports and hydraulic test records provided with each shipment.
Third-party inspection including SGS and BV is acceptable before loading for overseas water supply projects.
Flexible MOQ, support mixed-spec container orders and long-term framework supply contracts for engineering contractors.
Professional foreign trade team offers one-stop service: quotation, production progress tracking, inspection coordination and full set of export documents.
About us
Hebei Huayang Steel Pipe Co., Ltd. was founded in 2005, with a registered capital of 500 million yuan. The company covers an area of more than 1,000 mu, with annual sales of 10 billion yuan, more than 600 employees and an annual productivity of 2.75 million tons. The company has 17 new automatic steel pipe production lines and 14 high-frequency production lines, with a diameter of 73-660 mm; Three double-sided submerged arc welded steel pipe production lines with diameters of 406.4-1422.4mm;; 24 hot tube expanding production lines, with a diameter of 230-820mm; Two anticorrosion steel pipe production lines with a diameter of 73-1626 mm; 2 automatic painting production lines. With 3 branches and 5 offices, the products are sold to various cities and exported to more than 80 countries such as Southeast Asia, Middle East, Europe and America.
Packaging, transportation and delivery
Packaging, transportation and delivery
At Hebei Huayang Steel Pipe Co., Ltd., we apply standardized and reliable packaging solutions for all our steel pipe products. Our pipes can be securely packed by hexagonal bundling or circular bundling according to product diameter, wall thickness and customer requirements. Each pipe end is protected with high‑strength plastic pipe caps to avoid collision damage, dust and moisture during transportation and storage. The whole bundle is firmly wrapped with durable woven bags to enhance stability and prevent scratches or deformation.
We support a complete range of transportation methods to satisfy global customers, including road transportation, railway transportation, sea freight and container shipping. Based on our strategic location in Cangzhou, Hebei Province, we enjoy convenient access to major ports such as Tianjin Port, which greatly improves logistics efficiency and reduces transportation costs.
For standard specifications and normal order quantities, the general delivery time is about 30 days after order confirmation and deposit receipt. For large‑scale orders, special sizes or customized processing requirements, our production and sales team will formulate a detailed production plan and provide an accurate delivery schedule accordingly to ensure on‑time supply and stable performance for projects and clients worldwide.
Strict quality control
1. During and after the production, experienced quality inspectors randomly check the products to ensure that each steel pipe is qualified for production and application.
2. A nationally recognized laboratory with CNAS certification and certification by French Classification Society.
3. Have CNOOC access certificate, KOC oil company access network, ADNOC Abu Dhabi oil company access network, Petrobras access network, etc.
4. Accept the inspection by the third party designated/paid by the buyer, such as SGS and BV.
Certifications
API 2B
API 5L
GOST
ISO 9001
EN 10219
EN 10210
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