Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of erw anti-corrosion steel pipe for municipal engineering in China. Welcome to buy discount erw anti-corrosion steel pipe for municipal engineering made in China here from our factory. Quality products and low price are available.
Product introduction
Product Description
ERW Anti-corrosion Steel Pipe for Municipal Engineering is a dedicated pipeline solution tailored for urban municipal infrastructure construction, public engineering, and urban supporting pipeline networks. Manufactured with high-frequency Electric Resistance Welding (ERW) technology, this steel pipe features precise dimensional accuracy, smooth weld seams and stable structural performance. It is professionally coated with 3PE or FBE anti-corrosion layers, fully compliant with municipal engineering construction standards and international specifications includingGB/T 9711, GB/T 23257, API 5L, ISO 21809.
Designed to adapt to complex urban underground environments, including soil corrosion, groundwater immersion, temperature changes and construction extrusion, the product effectively solves common problems of municipal pipelines such as easy rust, leakage and short service life. With outstanding anti-aging, anti-corrosion and pressure-resistant performance, it supports long-term safe operation of urban buried pipelines. It is the most practical and cost-effective pipeline product for municipal water supply, drainage, fire protection, urban pipe gallery and municipal renovation projects.
Basic Product Specifications
Product Name: ERW Anti-corrosion Steel Pipe for Municipal Engineering
Executive Standards: GB/T 9711, GB/T 23257, SY/T 0413, API 5L, ISO 21809-1, ISO 21809-2
Base Pipe Technology: High-frequency ERW (Electric Resistance Welding)
Applicable Industry: Urban municipal engineering, municipal reconstruction, urban pipe gallery, public infrastructure
Steel Grades: Q235B, Q355B, S275JR, S355JR, API 5L Gr.B, X42, X52
Outer Diameter (OD): 21.3mm – 630mm, municipal conventional & non-standard sizes customizable
Wall Thickness (WT): 2.5mm – 20mm, thick-wall options for urban deep-buried pipelines
Standard Length: 6m, 9m, 12m, custom fixed lengths for municipal construction requirements
Anti-corrosion Coating Options
3PE Coating (Main for Municipal Buried Pipelines)
FBE Primer: 80–150μm
Adhesive Layer: 170–250μm
HDPE Topcoat: 2.0–4.0mm
FBE Coating (For Urban Humid & Slightly Corrosive Areas)
Single-layer fusion bonded epoxy coating: 300–500μm (standard 350μm)
Pipe End Treatment: 30°–45° beveled ends for municipal on-site welding; plain/flanged ends optional; sealed edge & anti-collision protective caps
Core Features: Municipal engineering dedicated, anti-aging, anti-leakage, easy construction, long service life, high cost performance
Core Product Advantages
Professional Adaptation to Municipal Underground Environment
Aiming at the complex working conditions of urban buried pipelines such as soil extrusion, vehicle load pressure, groundwater soaking and seasonal temperature difference changes, the product adopts optimized ERW pipe body structure and high-adhesion anti-corrosion coating. It effectively resists urban soil corrosion, microbial erosion and environmental aging, avoiding pipeline damage, water leakage and pipeline failure that affect urban public facilities operation.
Stable & Reliable Municipal-Grade Quality
All base pipes pass 100% ultrasonic weld detection and full-line hydrostatic pressure test, with uniform wall thickness and stable pressure resistance. The anti-corrosion coating undergoes 100% spark leak detection to ensure no pinhole defects. The whole product meets municipal engineering acceptance standards, with stable quality and zero hidden dangers for urban long-term operation.
High Construction Efficiency for Municipal Projects
The ERW steel pipe has high dimensional accuracy and good weldability and cutting performance, which is convenient for rapid laying, docking and construction in narrow urban construction sites. It adapts to municipal road excavation, pipe gallery pre-embedding and old pipeline renovation projects, greatly improving construction progress and shortening project cycle.
Long Service Life & Low Municipal Maintenance Cost
The 3PE/FBE anti-corrosion system provides 30–50 years of stable anti-corrosion protection for municipal pipelines. It reduces frequent pipeline maintenance, replacement and secondary construction caused by pipeline corrosion and leakage, effectively saving the later operation and maintenance costs of urban municipal engineering.
Environmentally Friendly & Urban Compliant
The coating materials are environmentally friendly, non-toxic and pollution-free, meeting urban environmental protection construction requirements. No harmful substances are precipitated during long-term buried operation, which will not pollute urban soil and groundwater, fully adapting to green municipal engineering construction standards.
Dimensional & Coating Tolerance Standard
|
Inspection Item |
Standard Tolerance |
|
Outer Diameter |
±0.75% of nominal OD |
|
Wall Thickness |
+15% / −12.5% of nominal WT |
|
Out-of-Roundness |
≤1.0% of outer diameter |
|
Straightness |
≤1.5mm per meter |
|
Pipe Length |
+150mm / −0mm |
|
3PE Total Thickness |
2.0–4.0mm |
|
FBE Coating Thickness |
300–500μm |
Mechanical Properties
|
Steel Grade |
Minimum Yield Strength |
Tensile Strength |
Minimum Elongation |
Hydrostatic Test |
|
Q235B |
≥235MPa |
375~500MPa |
≥26% |
100% tested at 1.5× working pressure |
|
Q355B |
≥355MPa |
470~630MPa |
≥21% |
100% tested at 1.5× working pressure |
|
API 5L X52 |
≥359MPa |
455~620MPa |
≥20% |
100% tested at 1.5× working pressure |
Note: Low-temperature impact test and special municipal engineering inspection reports can be provided to meet urban project bidding and acceptance requirements.
Manufacturing Process
Raw Material Screening: Select qualified municipal-grade steel strips, strictly inspect chemical composition and mechanical properties to ensure compliance with urban pipeline standards.
ERW Precision Forming & Welding: Continuous rolling forming and high-frequency seamless welding, weld trimming and online shaping to ensure smooth and defect-free welds.
Shaping & Stress Relief: Overall straightening and sizing treatment to eliminate welding residual stress and ensure pipe body stability for long-term buried use.
Full Standard Inspection: 100% ultrasonic weld non-destructive testing and full-length hydrostatic pressure test to eliminate unqualified pipes.
Surface Pretreatment: Shot blasting to Sa2.5 grade, completely removing rust and oil stains to ensure firm coating adhesion.
Municipal-Grade Anti-corrosion Coating: Adopt 3PE or FBE integrated coating process, high-temperature curing, uniform and dense coating without defects.
Strict Coating Inspection: 100% spark leak detection, thickness test, impact and adhesion test to meet municipal anti-corrosion standards.
Finishing & Standard Packaging: Pipe end protection, standard marking, waterproof and anti-collision packaging for urban transportation and construction.
Main Application Scope
Urban municipal underground comprehensive pipe gallery pipelines
City tap water supply pipeline network & rainwater and sewage drainage pipelines
Urban municipal fire protection buried pipeline projects
Urban renovation, old pipeline replacement and municipal supporting projects
Urban greening, landscape water delivery and garden supporting pipelines
Urban industrial zone municipal supporting fluid pipelines
Road and bridge municipal buried protection pipelines
Quality Inspection & Project Certification
Full dimensional inspection to ensure municipal pipeline dimensional accuracy
Complete mechanical performance test to meet urban pipeline load-bearing requirements
100% weld non-destructive testing to ensure no welding defects
Professional anti-corrosion coating performance full inspection
Complete Mill Test Report (MTR) for municipal project bidding and acceptance
Support SGS, BV, DNV third-party authoritative inspection
Packaging & Delivery
Packaging: Anti-corrosion PE film wrapping, high-strength steel strip bundling, waterproof woven cloth covering; pipe ends equipped with anti-collision protective caps, suitable for urban road transportation.
Product Marking: Product name, steel grade, specification, municipal standard, batch number, production date.
Trade Terms: FOB, CIF, CFR, DAP
Shipping Ports: Tianjin, Qingdao, Shanghai, Ningbo
Customization Service: Custom size, length, coating thickness and pipe end type according to municipal project drawings
Why Choose Our Municipal Engineering ERW Anti-corrosion Pipe
Municipal Specialized Design: Optimized for urban buried environments, targeted to solve municipal pipeline corrosion and aging problems
Standard Compliance: Fully compliant with national and international municipal engineering pipeline standards, easy project acceptance
Stable & Safe Operation: High structural stability and anti-leakage performance, ensuring long-term safe operation of urban public pipelines
High Construction Adaptability: Suitable for various urban construction scenarios, fast installation and high project efficiency
Low Operation Cost: Ultra-long service life, reducing municipal later maintenance and renovation investment
Project Experience: Rich supply experience in municipal infrastructure projects at home and abroad
Contact Us
For quotation, technical parameters, project solutions and delivery arrangement of ERW Anti-corrosion Steel Pipe for Municipal Engineering, please contact our professional sales team. We provide targeted municipal pipeline supporting solutions and full-cycle technical after-sales services for various urban municipal construction and renovation projects.
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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