Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of en 10219 426×8.5 s355j2h in China. Welcome to buy discount en 10219 426×8.5 s355j2h made in China here from our factory. Quality products and low price are available.
Product introduction
EN 10219 426×8.5 S355J0H Welded Structural Hollow Section
Product Name: EN 10219 S355J0H Welded Circular Hollow Section (CHS)
Standard: EN 10219-1:2006 (Cold formed welded structural hollow sections of non-alloy and fine grain steels) / EN 10219-2:2006
Specification: 426 × 8.5 mm (Outside Diameter × Wall Thickness)
Steel Grade: S355J0H
Delivery Condition: Cold-formed, welded, normalized (optional), free of scale or with anti-rust treatment
Application Scope: European standard structural hollow section, widely used in construction, machinery, bridges and engineering structures
Product Overview
EN 10219 426×8.5 S355J0H is a high-quality cold-formed welded circular hollow section (CHS), designed in full compliance with European EN 10219 standards. The grade S355J0H features excellent structural strength, good weldability, and reliable impact toughness at 0°C - the "J0" suffix indicates the material meets impact test requirements at 0°C, while "H" denotes the hollow section quality grade, specifically optimized for structural load-bearing scenarios.
Our 426×8.5 mm hollow section is manufactured with strict quality control, ensuring uniform wall thickness, precise dimensions, and stable mechanical properties. It is an ideal choice for medium-to-heavy load structural applications, suitable for both onshore and general industrial projects that require compliance with European standards.
Dimension Parameters
|
Parameter |
Specification |
|---|---|
|
Outside Diameter (OD) |
426 mm |
|
Wall Thickness (WT) |
8.5 mm |
|
Nominal Diameter |
400 mm (approx.) |
|
Length |
6m, 12m (standard); Customizable length (3m-18m) available |
|
End Treatment |
Plain cut (standard), chamfered ends, beveled ends (for welding, optional) |
|
Dimensional Tolerance |
Strictly complies with EN 10219 standard requirements |
Chemical Composition (Typical, Max %)
|
Element |
Maximum Content (%) |
|---|---|
|
Carbon (C) |
0.22 |
|
Silicon (Si) |
0.50 |
|
Manganese (Mn) |
1.60 |
|
Phosphorus (P) |
0.030 |
|
Sulfur (S) |
0.030 |
|
Nitrogen (N) |
0.012 |
|
Aluminum (Al) |
0.020 (minimum, for grain refinement) |
Mechanical Properties (S355J0H)
|
Mechanical Property |
Requirement |
|---|---|
|
Yield Strength (Re) |
≥ 355 MPa (for section thickness ≤ 16 mm) |
|
Tensile Strength (Rm) |
470 – 630 MPa |
|
Elongation (A) |
≥ 21% (on 50mm gauge length) |
|
Charpy V-Notch Impact Toughness |
≥ 27 J (average) at 0°C (3 specimens, no single value below 20 J) |
|
Hardness |
≤ 230 HBW (Brinell Hardness) |
Manufacturing Process
Production Method: Cold forming (roll forming) + High-Frequency Electric Resistance Welding (ERW)
Raw Material: Hot-rolled steel coils complying with EN 10025 standard
Processing Steps: Uncoiling → Leveling → Cutting → Forming → Welding → Deburring → Straightening → Sizing → Inspection → Surface Treatment
Surface Treatment:
Standard: Anti-rust oil coating, black oxide finish (free of scale)
Optional: Shot blasting (Sa2.5 grade), zinc plating, epoxy coating, painting (customizable per customer request)
Optional Processing: Cutting to length, drilling, bending, welding fabrication, and custom end treatments
Quality & Inspection
All products fully comply with EN 10219-1/EN 10219-2 standards, with strict quality control throughout the production process:
Visual Inspection: Check surface quality, weld appearance, and dimensional consistency
Dimensional Inspection: Verify outside diameter, wall thickness, length, and roundness
Mechanical Tests: Tensile test, elongation test, Charpy V-notch impact test (0°C), hardness test
Weld Inspection: Ultrasonic Testing (UT) for weld integrity (100% inspection optional), flattening test, bending test
Certificates: Mill Test Report (MTR) per EN 10204 3.1/B, material traceability, and third-party inspection report (optional, e.g., TÜV, BV)
Typical Applications
Suitable for European standard projects and structural applications requiring high strength and reliability:
Building steel structures (columns, beams, trusses, frameworks)
Bridge components (support beams, railings, piers)
Machinery and equipment (chassis, frames, supports)
Construction machinery (crane booms, excavator arms)
Transmission towers, power engineering structures
Industrial pipelines, ventilation systems, and structural supports
Onshore engineering, prefabricated steel structures
Product Advantages
Standard Compliance: Fully meets EN 10219 standards, applicable for European and international projects.
Excellent Mechanical Performance: High yield strength (≥355MPa) and good impact toughness at 0°C, suitable for medium-heavy load scenarios.
Precise Dimensions: Cold forming and strict sizing ensure uniform wall thickness and high dimensional accuracy.
Good Weldability & Machinability: Low carbon equivalent, easy to weld, cut, and process into custom components.
Cost-Effective: Optimized production process balances performance and cost, ideal for large-scale structural projects.
Complete Traceability: Full material traceability and MTR certification, ensuring product reliability.
Packaging & Delivery
Packaging: Export standard packaging - steel bundles (fixed with steel strips), wooden pallets (optional), wrapped with waterproof film to prevent rust during transportation.
Marking: Each bundle is marked with steel grade, size (OD×WT), standard (EN 10219), heat number, length, manufacturer's logo, and batch number.
MOQ: Negotiable (sample orders available for quality inspection).
Lead Time: 15–30 days, depending on order quantity and customization requirements.
Payment Terms: T/T (30% advance, 70% before delivery), L/C at sight.
Transportation: By sea (FCL/LCL), by rail, or by road (domestic and international).
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: en 10219 426×8.5 s355j2h, China en 10219 426×8.5 s355j2h manufacturers, suppliers, factory, Chemical ERW, Erw 370, ERW Welded Pipe, L245 L290 X42 X46 X60 X80 ERW STEEL PIPE, Erw Black Pipe, Erw Pipes tubes
