Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of hfw erw pipe 76mm-660mm chemical factory low pressure liquid pipe in China. Welcome to buy discount hfw erw pipe 76mm-660mm chemical factory low pressure liquid pipe made in China here from our factory. Quality products and low price are available.
Product introduction
Product Overview
Our 76mm–660mm HFW ERW straight welded steel pipes are professional fluid transportation tubes specially designed for chemical factory low-pressure liquid delivery systems. Manufactured by mature high-frequency electric resistance welding technology, this series of chemical-grade pipes features uniform weld density, stable structural integrity, excellent liquid tightness and reliable chemical inertness, fully adapting to long-term circulating delivery of low-pressure chemical liquids, industrial wastewater and conventional medium fluids in chemical plants.
Adopting premium low-carbon structural steel with strictly controlled chemical composition, the HFW ERW pipes deliver stable mechanical toughness, excellent anti-permeability performance and outstanding structural durability. The complete outer diameter range of 76mm to 660mm covers full specifications for chemical plant process auxiliary pipelines, workshop liquid delivery pipes, circulating water systems and industrial sewage pipelines. Available with black uncoated, anti-rust oil coating and customized anti-corrosion treatment, these low-pressure liquid pipes support fixed-length cutting and secondary processing. With zero leakage performance and strong medium adaptability, they are cost-effective and reliable pipeline solutions for chemical factories, pharmaceutical plants, industrial parks and chemical auxiliary engineering projects.
Production Process
Chemical-Grade Raw Material Selection: Adopt low-carbon steel coils with low impurity and stable chemical properties, ensuring good inertness against conventional chemical liquids and avoiding chemical reaction or pipeline corrosion.
Precision Coil Slitting: Steel strips are slit with strict dimensional tolerance to ensure uniform wall thickness and consistent pipe body structure, stabilizing long-term liquid pressure bearing capacity.
Multi-Pass Cold Forming: Continuous multi-roll precision forming ensures perfect roundness and excellent straightness, reducing fluid resistance and avoiding medium deposition inside chemical pipelines.
Stable HFW/ERW High-Frequency Welding: Optimized welding parameters form high-strength, defect-free straight welds with uniform heat-affected zones. Weld performance matches base metal to prevent liquid seepage at welding seams.
Full Internal & External Weld Polishing: Thorough trimming and fine polishing of inner and outer weld beads eliminate weld protrusions and stress points, ensuring smooth inner wall for stable liquid circulation and easy pipeline cleaning.
Online Sizing & Straightening: Precision calibration and straightening strictly control pipe dimensional accuracy, realizing precise fitting and sealing for chemical pipeline flange and coupling connections.
100% NDT & Liquid Tightness Testing: Each pipe undergoes eddy current non-destructive flaw detection and hydrostatic tightness test to eliminate micro defects and ensure zero leakage for low-pressure fluid delivery.
Standard Fixed-Length Cutting: Support standard 6m/12m lengths and customized 1.5–18m fixed lengths to adapt to different chemical plant pipeline layout and process design requirements.
Custom Anti-Corrosion Treatment: Optional anti-rust oil, black finish and special anti-corrosion coating improve chemical and moisture corrosion resistance for complex chemical workshop environments.
Chemical Pipeline Performance Inspection: Conduct pressure resistance, tightness and structural stability tests to meet long-term low-pressure fluid operation standards for chemical industrial systems.
Technical Specifications
Basic Parameters
Product Name: Chemical Factory Low Pressure Liquid HFW ERW Welded Steel Pipe Welding Process: HFW / ERW High-Frequency Electric Resistance Straight Welded Core Application: Chemical plant low-pressure liquid delivery, process auxiliary pipeline, industrial fluid circulation Executive Standards: ASTM A53, ASTM A500, BS 1387, Industrial Chemical Pipeline Standards Surface Options: Black uncoated, anti-rust oil coated, customized anti-corrosion treatment
Dimension Range
Outer Diameter: 76mm – 660mm (full specifications for chemical industrial low-pressure fluid pipelines) Wall Thickness: 2.0mm – 25.4mm, thick-wall options available for enhanced anti-corrosion and pressure resistance Length: Standard 6m/12m random length; customizable fixed length 1.5m–18m Tolerance: Industrial pipeline-grade precision tolerance, suitable for chemical plant pipeline assembly and long-term stable operation
Mechanical & Fluid Conveying Performance
Minimum Yield Strength: 290MPa Minimum Tensile Strength: 400MPa Elongation: ≥21% Core Performance: Excellent liquid tightness, stable low-pressure bearing capacity, good chemical inertness, smooth fluid conveying, no leakage, no structural deformation during long-term cyclic medium delivery
Product Advantages
Excellent Liquid Tightness: Defect-free high-frequency welds and full pressure testing completely avoid liquid seepage, meeting the zero-leakage safety requirements of chemical fluid pipelines.
Stable Low-Pressure Bearing Capacity: Uniform pipe body structure and reliable mechanical performance adapt to long-term low-pressure fluid circulation and intermittent pressure fluctuation in chemical workshops.
Good Chemical Medium Adaptability: Low-impurity steel formula resists erosion of conventional chemical solutions, industrial wastewater and weak corrosive media, extending pipeline service life.
Smooth & Clean Inner Wall: Fully polished inner surface reduces fluid resistance and prevents medium sedimentation, avoiding pipeline blockage and ensuring stable process fluid delivery.
Customizable Anti-Corrosion Solution: Multiple surface treatment options target humid chemical workshops and corrosive working environments, improving overall pipeline durability.
Complete Specification Coverage: Full 76–660mm OD range covers all mainstream low-pressure pipeline specifications for chemical factory process and auxiliary systems.
High Cost-Effective Industrial Solution: Factory direct supply with stable quality, reducing overall construction and maintenance costs for chemical industrial pipeline projects.
Application Fields
Chemical plant low-pressure process liquid delivery pipeline systems
Chemical workshop circulating water, cooling water and auxiliary water pipelines
Industrial park chemical wastewater discharge and treatment supporting pipelines
Pharmaceutical and fine chemical factory low-corrosive medium conveying pipes
Chemical equipment matching connecting pipelines and auxiliary fluid systems
Chemical plant renovation, pipeline replacement and auxiliary pipe network engineering
General industrial low-pressure liquid delivery and medium circulation pipeline projects
Packaging & Delivery
All chemical plant low-pressure liquid steel pipes are bundled with high-strength steel strips and fitted with rigid plastic end caps to keep inner walls clean and free of dust and impurities, ensuring fluid transportation cleanliness. Standard anti-rust oil and enhanced waterproof packaging are adopted for long-distance sea transportation. Support FCL container loading and bulk vessel shipment, with customizable chemical engineering exclusive shipping marks and export-standard packaging for industrial project orders.
Quality Assurance & Service
We implement strict ISO full-process quality management system for chemical industrial pipelines. Complete Mill Test Certificates, hydrostatic tightness 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 chemical plant project customized processing, providing one-stop professional services including parameter confirmation, production tracking, industrial-grade quality inspection and full set of export clearance 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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