Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of en10210 structural hfw pipe 76-660mm building column welded tube in China. Welcome to buy discount en10210 structural hfw pipe 76-660mm building column welded tube made in China here from our factory. Quality products and low price are available.
Product introduction
1. Product Overview
Product Name
76mm To 660mm HFW Pipe Hydraulic Equipment Outer Casing Pipe
Core Standard & Product Positioning
This series of HFW high-frequency straight seam welded steel pipes is manufactured in strict accordance with GB/T 3091, GB/T 13793, EN 10219 and mechanical equipment manufacturing standards. Covering a complete outer diameter range of 76mm to 660mm, it is a professional precision protective steel tube specially developed for hydraulic equipment outer casing, hydraulic cylinder outer protective sleeve, hydraulic pipeline anti-collision casing and mechanical hydraulic system supporting protection structures.
Hydraulic equipment operates under long-term high-pressure reciprocating motion, mechanical vibration and dynamic load impact, which puts forward extremely high requirements on the roundness, straightness, surface finish and structural stability of outer casing pipes. Ordinary steel pipes are prone to dimensional deviation, surface burrs and structural vibration deformation, affecting the assembly accuracy and service life of hydraulic components. Our HFW high-frequency welded pipe adopts precision rolling forming and full weld finishing technology, with uniform pipe wall thickness, ultra-high roundness and smooth seamless surface. It effectively adapts to the frequent vibration, pressure fluctuation and mechanical friction working conditions of hydraulic systems, ensuring precise matching, stable protection and long-term reliable operation of hydraulic equipment.
Core Advantages for Hydraulic Outer Casing
Aiming at the special precision and protective performance requirements of hydraulic equipment casings, this HFW pipe has targeted performance optimization. The high-precision integral forming process ensures zero obvious deformation under long-term hydraulic vibration, avoiding jamming and wear of internal hydraulic parts. The burr-free smooth inner and outer surfaces support precise assembly and telescopic movement of hydraulic cylinders, reducing friction resistance and component loss. The high-strength weld structure resists external impact and extrusion, effectively protecting internal hydraulic pipelines and core components from mechanical damage. With stable mechanical fatigue resistance, it perfectly matches the continuous cyclic operation mode of mechanical hydraulic equipment, greatly reducing equipment failure rate and maintenance cost.
2. Complete Technical Specifications
2.1 Dimension Range (Hydraulic Casing Matching)
Outer Diameter: 76mm ~ 660mm (full-size coverage for small, medium and large hydraulic equipment outer casings and protective sleeves)
Wall Thickness: 3.0mm ~ 22mm (thin wall for light-duty hydraulic equipment protection, thick wall for heavy machinery high-load anti-collision casing)
Standard Length: 6m / 12m fixed length, 5.8–11.8m random length, support custom fixed-length cutting, precision pipe end flattening and chamfering for hydraulic assembly
Dimensional Tolerance: Mechanical precision grade tolerance, ultra-low ovality and straightness deviation, fully meeting hydraulic equipment precision assembly standards
2.2 Available Material Grades for Hydraulic Equipment Casing
|
Material Grade |
Executive Standard |
Core Mechanical Performance |
Hydraulic Application Characteristics |
Equipment Matching Scenarios |
|
Q235B / S235JR |
GB/T 3091, EN 10219 |
Stable toughness, good surface flatness |
Easy processing and assembly, cost-effective, anti-vibration |
Light industrial hydraulic equipment, conventional hydraulic pipeline outer protective casing |
|
Q355B / S355JR |
GB/T 1591, EN 10219 |
High strength, strong impact resistance, anti-fatigue |
Resist high-frequency vibration and heavy load extrusion |
Engineering machinery, heavy equipment hydraulic cylinder outer casing, high-load hydraulic protection structure |
|
ASTM A53 Gr.B |
ASTM A53 |
Uniform texture, stable dimensional stability |
International standard compliance, high assembly compatibility |
Overseas mechanical hydraulic equipment supporting casing projects |
2.3 Hydraulic Casing Professional Performance Parameters
Precision Dimensional Stability: Strict roundness and straightness control, no dimensional deviation after processing, ensuring precise fit of hydraulic casing and internal components
Excellent Vibration & Fatigue Resistance: Adapt to long-term high-frequency vibration and cyclic reciprocating operation of hydraulic systems, no structural deformation or cracking
Smooth Surface Finish: No welding burrs or surface protrusions, reducing friction and wear of hydraulic telescopic parts, improving equipment operation smoothness
Strong Impact & Extrusion Resistance: High structural rigidity, effectively resist external mechanical collision and pressure, protect internal hydraulic core parts
Good Processing Performance: Support cutting, grinding, drilling and finishing, convenient for secondary precision processing of hydraulic equipment casings
Stable Environmental Adaptability: Anti-oxidation and anti-rust performance, adapt to industrial workshop humid and oil-polluted working environment
3. HFW Precision Production Process for Hydraulic Casing Pipe
Adopt mechanical precision casing dedicated HFW high-frequency welding process, focusing on dimensional accuracy, surface finish and anti-vibration stability to meet hydraulic equipment high-precision manufacturing requirements:
Mechanical-Grade Raw Material Selection: Select high-uniformity carbon steel coils with stable texture and low impurity content, ensuring consistent mechanical properties of casing pipes
Multi-Pass Precision Balanced Forming: Synchronous multi-roll forming technology to ensure uniform wall thickness and regular circularity, eliminating eccentric pipe body
HFW High-Frequency Solid-State Welding: Filler-free induction welding, narrow heat-affected zone, weld metallurgical performance consistent with base metal
Full Internal & External Weld Burr Removal: Precision grinding of inner and outer welds to achieve smooth seamless pipe surface, no friction interference for hydraulic movement
Weld Stress Relief Treatment: Eliminate welding residual stress, improve anti-fatigue and anti-vibration performance, adapt to long-term hydraulic cyclic vibration
High-Precision Sizing & Straightening: Secondary calibration of pipe straightness and roundness to ensure mechanical precision assembly tolerance
Precision Fixed-Length Cutting & Finishing: Flat and smooth pipe ends, customizable precision chamfering, meeting hydraulic equipment assembly standards
Dimensional & Structural Precision Inspection: Full-size precision detection and vibration resistance test to ensure compliance with hydraulic casing manufacturing standards
4. Strict Hydraulic Machinery Grade Quality Inspection
Raw Material Mechanical Performance Test: Batch detection of tensile strength, yield strength and toughness to ensure stable mechanical performance for hydraulic dynamic load
100% Weld Ultrasonic NDT Inspection: Full-length weld flaw detection to eliminate tiny defects, ensuring structural integrity under long-term vibration
Precision Dimensional Tolerance Inspection: Strict detection of ovality, straightness and wall thickness deviation to guarantee hydraulic assembly accuracy
Surface Finish Inspection: Full inspection to ensure no burrs, scratches and protrusions, protecting hydraulic parts from wear
Vibration Fatigue Simulation Test: Simulate long-term hydraulic equipment operating vibration to verify structural stability
Third-Party Authoritative Certification: Support SGS, BV inspection, provide complete MTC test reports for mechanical equipment factory acceptance
5. Core Product Advantages for Hydraulic Equipment Outer Casing
High-Precision Assembly Matching: Ultra-low dimensional tolerance and excellent roundness completely fit the precision assembly requirements of hydraulic cylinders and hydraulic casings, avoiding assembly jamming and gap deviation.
Anti-Vibration & Anti-Fatigue Stability: Optimized HFW welding and stress relief process, effectively resist high-frequency vibration of hydraulic systems, no long-term deformation, ensuring stable equipment operation.
Low Wear & Long Service Life: Super smooth burr-free surface reduces friction loss of internal hydraulic telescopic components, greatly extending the service life of hydraulic equipment.
Reliable External Protection Performance: High structural rigidity and impact resistance, effectively shield internal hydraulic pipelines, oil circuits and core parts from external collision and extrusion damage.
Easy Secondary Processing: Uniform pipe body and stable material performance, convenient for precision grinding, cutting and drilling, meeting customized processing needs of various hydraulic equipment.
High Cost Performance: More precise and stable than ordinary welded pipes, lower cost than seamless pipes, the optimal precision casing material for mass production of hydraulic machinery.
6. Main Application Scenarios
Hydraulic Cylinder Outer Protective Casing: Engineering machinery hydraulic cylinder outer sleeve, telescopic hydraulic cylinder protective pipe
Industrial Hydraulic System Protection: Factory mechanical hydraulic pipeline outer anti-collision casing, hydraulic oil circuit protective steel tube
Engineering Machinery Supporting Parts: Excavator, crane, loader hydraulic equipment outer protective structure
Precision Mechanical Hydraulic Components: Automated equipment hydraulic system casing, small precision hydraulic station protective pipe
Hydraulic Equipment Renovation & Customization: Replacement of aging hydraulic casings, customized protective pipes for special hydraulic machinery
7. Surface Treatment & Export Packaging
Surface Treatment Options for Hydraulic Casing
Standard Anti-Rust Treatment: Black anti-rust oil / anti-rust paint, suitable for internal hydraulic equipment casing and short-term storage protection
Pickling & Bright Finishing: Smooth bright surface treatment, convenient for subsequent grinding, polishing and finishing processing
Galvanized Anti-Corrosion Treatment: Hot-dip galvanized or cold galvanized treatment, suitable for outdoor hydraulic equipment and humid working conditions
Precision Product Packaging Standard
Medium & Small Diameter Pipes: Steel strip bundling + plastic end caps + inner protective film, prevent surface scratch and deformation, protect precision casing surface
Large Diameter Pipes: ISPM15 wooden frame fixed packaging + waterproof and anti-collision wrapping, avoid extrusion damage during transportation
Precision Marking: Clearly print specification, grade, standard and batch number on the pipe body, convenient for hydraulic equipment factory classification and processing
8. Manufacturer Strength
Professional HFW high-frequency precision welded pipe production line, specially customized for mechanical equipment and hydraulic casing precision pipes
Rich supporting experience in engineering machinery, industrial hydraulic equipment and precision mechanical parts projects
Strict precision mechanical pipe quality control system, focusing on dimensional accuracy, surface finish and vibration resistance
Stable bulk supply capacity, support mass production and customized processing of hydraulic machinery supporting casings
Provide one-stop precision processing services including fixed-length cutting, precision finishing, surface treatment and complete inspection 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
Hot Tags: en10210 structural hfw pipe 76-660mm building column welded tube, China en10210 structural hfw pipe 76-660mm building column welded tube manufacturers, suppliers, factory, API 2B erw carbon round tube pipe, Carbon Steel Tube, Erw A53 Pipes, Erw Carbon Steel Pipe, Erw Carbon Steel Pipe A106 Pipe, Erw Steel Tube DN150
