Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of 76mm-660mm erw carbon pipe power plant auxiliary water pipeline in China. Welcome to buy discount 76mm-660mm erw carbon pipe power plant auxiliary water pipeline made in China here from our factory. Quality products and low price are available.
Product introduction
Product Overview
Our 76mm–660mm ERW carbon steel pipes are professional-grade pipeline tubes specially manufactured for power plant auxiliary water systems, thermal power station circulating water, equipment cooling water and industrial water delivery projects. Adopting mature ERW electric resistance welding technology, this series of carbon steel tubes features uniform weld structure, high pressure resistance, stable hydraulic performance and excellent long-term operational safety, fully meeting the continuous and stable water delivery requirements of power plant auxiliary systems.
Made of high-quality low-carbon structural steel, the pipes deliver stable mechanical properties, good weldability and outstanding fatigue resistance, adapting to long-term continuous operation, temperature fluctuation and circulating water scouring in power plant environments. The complete 76–660mm outer diameter range covers mainstream specifications for power plant cooling water pipelines, domestic water pipelines, fire water pipelines and auxiliary equipment connecting pipelines. Available with black uncoated, anti-rust oil coating and hot-dip galvanized surface treatment, these ERW carbon pipes are reliable, low-consumption and cost-effective pipeline solutions for thermal power plants, new energy power stations and industrial power engineering projects.
Production Process
Power-Grade Raw Material Selection: Adopt standard low-carbon steel coils with stable chemical composition, low impurity content and excellent pressure resistance, complying with power industry auxiliary pipeline material standards.
Precision Strip Slitting: Steel coils are slit into uniform width strips with precise tolerance to ensure consistent wall thickness and uniform pressure bearing capacity of power pipeline tubes.
Multi-Pass Cold Forming: Continuous precision rolling forming ensures perfect roundness, smooth inner wall and excellent straightness, reducing water flow resistance for long-distance power plant water delivery.
Stable ERW Electric Resistance Welding: High-precision resistance welding forms tight and uniform straight welds. The weld strength is consistent with the base metal, effectively avoiding pipeline leakage under long-term circulating water pressure.
Full Weld Bead Polishing: Internal and external welding beads are completely trimmed and polished to ensure smooth inner wall, prevent sediment accumulation and guarantee unobstructed water circulation for power auxiliary systems.
Online Sizing & Straightening: Strict dimensional calibration and straightening treatment ensure high dimensional accuracy, matching standard power plant pipeline installation and flange connection requirements.
100% Hydrostatic & NDT Testing: Each pipe undergoes eddy current non-destructive flaw detection and high-pressure hydrostatic test to eliminate welding defects, meeting power industry high safety standards.
Standard & Custom Length Cutting: Support standard 6m/12m lengths and customized 1.5–18m fixed lengths to adapt to different power plant pipeline layout designs.
Specialized Anti-Rust Treatment: Optional anti-rust oil or hot-dip galvanized treatment improves corrosion resistance for long-term indoor and outdoor pipeline operation in power plant environments.
Power-Grade Sampling Inspection: Conduct pressure resistance, tightness, tensile and bending tests to ensure stable performance for long-cycle power plant auxiliary water system operation.
Technical Specifications
Basic Parameters
Product Name: ERW Carbon Steel Pipe for Power Plant Auxiliary Water Pipeline Welding Process: ERW Electric Resistance Straight Welded Core Application: Power plant cooling water, circulating water, fire water and auxiliary fluid pipelines Executive Standards: ASTM A53, ASTM A500, BS 1387, Power industry general pipeline standards Surface Options: Black uncoated, anti-rust oil coated, hot-dip galvanized
Dimension Range
Outer Diameter: 76mm – 660mm (full specifications for power plant auxiliary water pipelines) Wall Thickness: 2.0mm – 25.4mm, thick-wall customization available for high-pressure power water systems Length: Standard 6m/12m random length; customizable fixed length 1.5m–18m Tolerance: Industrial high-precision tolerance, suitable for standard power engineering pipeline assembly
Mechanical & Hydraulic Performance
Minimum Yield Strength: 290MPa Minimum Tensile Strength: 400MPa Elongation: ≥21% Excellent pressure resistance, water tightness and anti-fatigue performance, stable under long-term continuous water circulation and pressure fluctuation, no leakage or structural deformation
Product Advantages
High Operational Safety for Power Systems: Defect-free ERW welds and 100% pressure testing ensure zero leakage operation, avoiding pipeline failure risks that affect power plant auxiliary system stability.
Low Water Resistance & High Efficiency: Super smooth inner wall reduces circulating water friction and sediment deposition, ensuring efficient and stable water supply and cooling circulation for power equipment.
Excellent Long-Cycle Stability: Resists long-term water scouring, pressure fluctuation and slight temperature change, suitable for 24/7 continuous operation of power plant auxiliary pipelines.
Strict Power-Grade Quality Control: Produced and inspected in accordance with industrial power pipeline standards, stable quality to meet strict power engineering acceptance requirements.
Complete Specification Matching: Full 76–660mm OD range covers all conventional auxiliary water pipeline specifications for thermal power and industrial power plants.
Strong Construction Adaptability: Support pipe end grooving, threading and flange processing, convenient for on-site splicing and laying of power plant pipe networks.
Low Operation & Maintenance Cost: Durable structural performance and reliable anti-corrosion effect reduce later pipeline maintenance, replacement and downtime loss for power stations.
Application Fields
Thermal power plant equipment cooling circulating water pipelines
Power plant auxiliary workshop domestic water and process water pipelines
Power station fire water supply and emergency water pipeline systems
Industrial power plant sewage discharge and water treatment supporting pipelines
Power plant rainwater drainage and workshop water conservancy supporting pipe networks
New energy power station auxiliary fluid delivery pipelines
Power plant renovation, expansion and pipeline upgrading engineering projects
Packaging & Delivery
All power plant auxiliary water pipeline steel tubes are bundled with high-strength steel strips and fitted with standard plastic end caps to keep the inner wall clean and unblocked. Professional anti-rust oil and waterproof packaging are adopted for long-distance transportation to ensure no rust or contamination. Support FCL container shipment and bulk vessel transportation, with customizable power engineering exclusive shipping marks and export standard packaging for large power project orders.
Quality Assurance & Service
We implement full ISO quality management system for power pipeline dedicated steel pipes. Complete Mill Test Certificates, hydrostatic pressure test reports and NDT inspection records are provided for each batch. Third-party inspections such as SGS and BV are acceptable. We support long-term bulk supply and power engineering project customized orders, providing one-stop services including technical parameter confirmation, production progress tracking, quality inspection 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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