Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of en10305 precision hfw straight pipe od76-660mm mechanical parts tube in China. Welcome to buy discount en10305 precision hfw straight pipe od76-660mm mechanical parts tube made in China here from our factory. Quality products and low price are available.
Product introduction
Product Overview
Our 76–660mm EN10305 precision HFW straight pipes are high-tolerance mechanical-grade steel tubes strictly manufactured in accordance with European EN10305 precision tube standards. Adopting advanced high-frequency welding and professional precision finishing technology, this series of mechanical tubes features ultra-tight dimensional tolerance, uniform wall thickness, flawless weld structure and excellent surface smoothness, fully meeting the strict precision requirements of mechanical part manufacturing, equipment assembly and secondary machining.
Made of premium low-carbon structural steel with refined smelting technology, the EN10305 HFW precision tubes deliver stable mechanical consistency, low residual stress and superior processability. The complete outer diameter range of 76mm to 660mm covers mainstream specifications for mechanical structural parts, equipment base supports, hydraulic system matching tubes and industrial mechanical processing components. Available with black fine finishing, anti-rust oil coating and customized surface treatment, these standard European precision tubes support cutting, bending, drilling, turning and various deep machining processes. With reliable standard compliance and high assembly accuracy, they are ideal precision tubular solutions for mechanical manufacturing, automation equipment, engineering machinery and industrial precision component projects worldwide.
Production Process
Multi-Pass Precision Cold Forming: Adopt multi-roll synchronous forming technology to ensure perfect roundness, ultra-high straightness and symmetrical pipe body structure, eliminating forming deviation that affects mechanical assembly accuracy.
High-Precision HFW Welding: Optimized high-frequency induction welding parameters form narrow and uniform heat-affected zones, with high-integrity defect-free welds whose mechanical properties are completely consistent with the base metal.
Full Weld Bead Micro-Polishing: Internal and external welding beads are thoroughly trimmed and finely polished to achieve flat and smooth inner and outer walls, avoiding stress concentration and machining defects during mechanical processing.
Precision Sizing & Stress Relief Straightening: Secondary precision calibration and professional stress relief treatment eliminate pipe body residual stress, ensuring no deformation during long-term mechanical operation and secondary machining.
100% NDT & Precision Dimension Inspection: Each pipe undergoes full eddy current non-destructive flaw detection and dimensional precision inspection to strictly meet EN10305 standard tolerance requirements.
Accurate Fixed-Length Cutting: Support standard 6m/12m lengths and customized 1.5–18m fixed lengths, adapting to different mechanical part processing and equipment assembly specifications.
Precision Surface Protection Treatment: Adopt uniform anti-rust oil or customized anti-scratch finishing to protect the precision surface, ensuring no scratches or oxidation during transportation and processing.
EN Standard Sampling Testing: Conduct tensile, bending, flattening and dimensional tolerance tests to verify full compliance with EN10305 precision mechanical tube acceptance standards.
Technical Specifications
Basic Parameters
Product Name: EN10305 Precision HFW Straight Welded Mechanical Parts Tube Welding Process: HFW High-Frequency Induction Straight Welded Executive Standard: EN10305 European Precision Steel Tube Standard Grade: Standard mechanical carbon steel grade Core Application: Mechanical parts processing, equipment precision assembly, industrial mechanical structure Surface Options: Black fine finished, anti-rust oil coated, customized surface treatment
Dimension Range
Outer Diameter: 76mm – 660mm (full specifications for industrial mechanical precision tubes) Wall Thickness: 2.0mm – 25.4mm, customized precision wall thickness available Length: Standard 6m/12m random length; customizable fixed length 1.5m–18m Tolerance: EN10305 standard ultra-precision tolerance, much higher than ordinary welded pipe standards
Mechanical Properties
Minimum Yield Strength: 290MPa Minimum Tensile Strength: 400MPa Elongation: ≥21% Core Performance: Low residual stress, high dimensional stability, excellent bending and flattening resistance, no deformation after precision machining, consistent mechanical performance for long-term mechanical operation
Product Advantages
Strict EN10305 Standard Compliance: Fully produced and inspected in accordance with European precision tube standards, with complete standard certification, suitable for European mechanical equipment manufacturing and standard parts matching.
Micron-Level Precision Tolerance: Ultra-tight dimensional control ensures excellent roundness, straightness and wall thickness uniformity, meeting high-precision assembly requirements of mechanical parts.
Zero-Deformation Machining Performance: Professional stress relief treatment eliminates internal residual stress, effectively avoiding bending, twisting and shrinking during cutting, drilling and turning processing.
Flawless Smooth Surface: Fine polishing process removes all welding marks and burrs, ensuring smooth inner and outer walls, reducing machining loss and improving surface finish of finished mechanical parts.
Stable Mechanical Consistency: Standardized production process ensures uniform performance of each batch of tubes, avoiding assembly errors and equipment failure caused by inconsistent pipe quality.
Superior Secondary Processability: Balanced hardness and toughness support all kinds of precision mechanical processing, flexible for customized mechanical parts and structural component production.
High Operational Stability: Compact and uniform pipe structure resists mechanical fatigue and vibration, ensuring long-term stable operation of mechanical equipment and structural parts.
Application Fields
Industrial mechanical equipment precision structural parts and supporting components
Automation equipment frame assembly and precision matching tubular parts
Engineering machinery base supports and mechanical processing accessories
Hydraulic and pneumatic system precision conveying and matching pipelines
Robot equipment structural brackets and precision assembly components
European standard mechanical parts manufacturing and precision component processing
High-precision industrial equipment manufacturing and customized mechanical engineering projects
Packaging & Delivery
All EN10305 precision HFW mechanical tubes adopt professional anti-scratch precision export packaging. Pipes are bundled with high-strength steel strips and fitted with thickened soft plastic end caps to protect precision pipe ends and inner walls. Anti-collision, dust-proof and waterproof wrapping is applied to avoid surface damage, extrusion deformation and oxidation during long-distance transportation. Support FCL container shipment and bulk delivery, with customized European standard shipping marks and precision product exclusive packaging for mechanical manufacturing batch orders.
Quality Assurance & Service
We implement full-process ISO quality management system for EN10305 standard precision tubes. Complete Mill Test Certificates, EN10305 standard compliance reports, precision dimension inspection records and NDT inspection certificates are provided for each batch. Third-party inspections such as SGS and BV are acceptable. We support customized precision processing, fixed-length cutting and long-term bulk supply, providing one-stop professional export services including standard parameter confirmation, production tracking, strict precision 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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