Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of erw welded straight pipe 76-660mm iso certified factory supply tube in China. Welcome to buy discount erw welded straight pipe 76-660mm iso certified factory supply tube made in China here from our factory. Quality products and low price are available.
Product introduction
1.Short Description (Banner & Search Preview)
Our 76–660mm ERW straight welded pipe adopts high-frequency resistance welding craft, fully ISO certified, and supplied directly from factory without middlemen. Made of low-carbon steel with precise dimensional tolerance and flawless welded seam, the tube undergoes full non-destructive testing and hydrostatic pressure inspection. It supports customized wall thickness, length and anti-corrosion coatings, widely applicable to building structure, foundation piling, water/gas delivery, machinery brackets and municipal engineering projects with stable quality and competitive bulk price.
2.Product Overview
ISO Certified General ERW Straight Welded Tube
76mm to 660mm ERW straight pipe, also known as HFW high-frequency welded tube, is a cost-effective longitudinal welded steel pipe mass-produced by automated forming and welding lines. Raw low-carbon steel coil is rolled into round tube blank, then fused via high-frequency electric resistance welding without extra welding filler. The weld zone achieves complete metallurgical bonding, with inner & outer weld beads smoothly scarfed flat. Uniform wall thickness, excellent straightness and tight ovality control meet ISO international manufacturing standards. With complete ISO production & quality management certification, every batch of pipes implements standardized inspection procedures, delivering consistent mechanical performance, good ductility and anti-deformation capacity, suitable for all mainstream structural and low-pressure fluid pipeline projects worldwide.
3.Core Product Advantages (ISO Factory Certified)
✅ Fully ISO Certified Standard Production System The whole production workshop passes ISO 9001 quality management system certification, all production, inspection and packaging links follow unified ISO operating specifications. Complete traceable quality records are available for every order, supporting third-party audit and international project acceptance.
✅ 76–660mm Full OD Range with Customizable Sizes Complete outer diameter coverage from 76mm to 660mm, matched with 1.5mm–20mm optional wall thickness and standard/custom lengths. Strict dimensional tolerance control ensures precise assembly during construction, piling and pipeline installation.
✅ Integrated HFW Weld, Stable Mechanical Performance Advanced high-frequency ERW welding eliminates weak weld areas; polished weld beads avoid stress concentration. Pass flatten, bend, tensile and impact tests, weld strength equals base metal, resistant to long-term static and dynamic loads.
✅ Strict Multi-Round Inspection & Full Test Reports 100% online ultrasonic NDT inspection + offline hydrostatic pressure test + dimension recheck. Provide EN 10204 3.1 MTC material test certificate, fully compliant with ISO, ASTM, API, EN standards, acceptable for SGS/BV/TUV third-party inspection.
✅ Factory Direct Supply & Flexible Customization Automated production lines lower comprehensive cost, bulk orders enjoy favorable factory price. Support customized pipe ends, surface anti-rust/anti-corrosion treatments, marking and packaging to fit different regional engineering and shipping demands.
✅ Diversified Anti-Corrosion Options for All Scenarios Multiple surface treatments including black bare, anti-rust oil, hot-dip galvanizing, epoxy coating and 3LPE anti-corrosion, solving rust, UV and salt-spray erosion problems for indoor, outdoor and coastal environments.
4.Technical Specification Parameters
|
Item |
Detailed Parameters |
|
Product Name |
ERW Straight Seam Welded Steel Tube, 76–660mm HFW Pipe |
|
Outer Diameter (OD) |
76mm ~ 660mm, full custom sizes available |
|
Wall Thickness (WT) |
1.5mm – 20mm, SCH10/SCH20/SCH40/SCH80 optional |
|
Standard Length |
6m / 9m / 12m; random length & fixed cut length customizable |
|
Raw Material Grade |
Q195, Q215, Q235B, S235JR, S275JR, API 5L Gr.B, ASTM A53 Gr.B low carbon steel |
|
Executive Standards |
ISO 9001, ISO 3183, API 5L PSL1/PSL2, ASTM A53, ASTM A500, EN 10219, GB/T 3091 |
|
Welding Technology |
HFW High-Frequency Electric Resistance Welding, longitudinal straight seam |
|
Pipe End Processing |
Plain end, beveled end, threaded end as customer drawing |
|
Surface Treatment |
Black bare pipe, anti-rust oil, varnish, hot-dip galvanized, epoxy coating, 3LPE anti-corrosion |
|
Inspection Items |
UT ultrasonic testing, hydrostatic test, flatten test, bend test, chemical & mechanical property lab test |
|
Certification |
ISO 9001 Quality Management System Certified Factory |
|
MOQ |
10 Metric Tons |
|
Production Lead Time |
7–20 working days after deposit confirmation |
5.Complete Production Process
Low-carbon steel coil uncoiling → edge trimming → continuous roll forming → high-frequency ERW welding → inner & outer weld bead scarfing → online UT non-destructive inspection → sizing & straightening → fixed-length cutting → hydrostatic pressure sealing test → surface anti-corrosion treatment → dimension & appearance re-inspection → heat number & specification marking → export-standard packaging → shipment
6.Wide Application Scenarios
Construction & Structural Engineering
Workshop & residential building steel frames, columns and support beams
Construction scaffolding, temporary engineering support pipes
Foundation piling, ground reinforcement pipe, bridge auxiliary structures
Greenhouse frames, municipal guardrails, mechanical equipment brackets
Low-Pressure Fluid Transportation
Urban water supply & drainage pipeline
City natural gas, coal gas distribution pipeline
Agricultural irrigation pipes, fire-fighting pipeline systems
Other Industrial Projects
New energy equipment support frames, general machinery load-bearing structures, solar bracket steel pipes
7.Packaging & Sea Shipment Standard
Small OD pipes (≤300mm): Bundled with high-tensile steel strips, wrapped waterproof plastic film, both ends fitted with plastic plugs to prevent collision damage
Large OD pipes (＞300mm): Bulk loaded into 20GP/40GP containers or bulk cargo vessels, equipped with anti-collision protective pads
Custom pipe marking: Print brand, standard, OD/WT/length, heat number and project mark on pipe surface
All packages meet international seaworthy export standards, suitable for long-distance ocean transportation to global markets
8.ISO Factory Quality Assurance & One-Stop Service
Standardized ISO production management system, full process quality monitoring, complete test data traceable for each batch
Official EN 10204 3.1 MTC factory test report provided together with shipment documents
Accept independent third-party inspection (SGS, BV, TUV) before container loading
Professional technical team provides parameter matching and solution suggestions for global engineering projects
Support full customization of size, wall thickness, length, anti-corrosion coating and pipe end processing per customer drawings
Complete after-sales service system to timely resolve quality, logistics and delivery issues for overseas buyers
9. Listing Core Keywords
ERW welded straight pipe, 76-660mm steel tube, ISO certified ERW pipe, factory supply HFW steel pipe, low carbon structural welded tube, construction steel pipe, fluid transport ERW tube, foundation piling steel pipe, straight seam resistance welded pipe
10.Manufacturer Brand Introduction
Hebei Huayang Steel Pipe Co., Ltd. ISO 9001 certified professional ERW/HFW/LSAW steel pipe manufacturer with over 15 years production experience. Equipped with fully automated high-frequency welding production lines, we strictly implement ISO and international pipeline standards, supplying stable, cost-effective steel pipe solutions for construction, municipal, new energy and oil & gas engineering clients all over the world.
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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