Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of en 10219 245×4.9 s275j0h in China. Welcome to buy discount en 10219 245×4.9 s275j0h made in China here from our factory. Quality products and low price are available.
Product introduction
EN 10219 245×4.9 S275J0H Round Hollow Section
Product Detail Page (Full English Version)
Optimized for overseas e-commerce, official technical specification, in line with European structural steel standard EN 10219, complete with size parameters, mechanical properties, chemical composition, manufacturing process, dimensional tolerance, application scope, quality inspection and delivery description.
Product Basic Information
Product Name: Cold-Formed Welded Round Structural Hollow Section (CHS)Standard: EN 10219-1 / EN 10219-2 (Cold formed welded structural hollow sections of non-alloy and fine grain steels)Steel Grade: S275J0H (Material No. 1.0149)Size: Outer Diameter (OD): 245 mm × Wall Thickness (WT): 4.9 mmHollow Section Type: Circular Hollow Section (CHS)Manufacturing Process: Cold-formed electric resistance welded (ERW), no post-heat treatment
Steel Grade Symbol Explanation (S275J0H)
S: Structural steel
275: Minimum yield strength ≥ 275 MPa (for thickness ≤ 16mm)
J0: Specified impact energy requirement at 0 ℃, minimum impact value ≥ 27J
H: Denotes structural hollow section application
Exact Dimensional Parameters
| Item | Specification | Standard Tolerance (EN 10219-2) |
|---|---|---|
| Outer Diameter (OD) | 245 mm | ±1% (min. ±0.5 mm) |
| Wall Thickness (WT) | 4.9 mm | ±10% (WT ≤ 5 mm) |
| Inside Diameter (ID) | 235.2 mm | - |
| Out-of-Roundness | - | Max. 2% of outer diameter |
| Length | 6m / 12m fixed length, customized length available | ±50 mm |
Mechanical Properties (EN 10219-1 Standard)
| Property | Value Requirement |
|---|---|
| Minimum Yield Strength (ReH) | 275 MPa |
| Tensile Strength (Rm) | 430 – 580 MPa |
| Elongation at Break (A) | ≥ 27 % |
| Impact Test Temperature | 0 ℃ |
| Minimum Impact Energy (KV) | ≥ 27 J |
| Weldability | Excellent, low-carbon structural steel, no preheating required for conventional welding |
Chemical Composition (Mass Fraction, Max. %)
| Element | C | Si | Mn | P | S | N |
|---|---|---|---|---|---|---|
| Limit | ≤0.20 | ≤0.55 | ≤1.50 | ≤0.035 | ≤0.035 | ≤0.009 |
Manufacturing Technology
Raw material: Hot-rolled low-carbon steel coil, fine-grained non-alloy structural steel
Process: Cold roll forming → high-frequency electric resistance welding → sizing & straightening → dimensional inspection → surface finishing
Delivery condition: As-formed, no additional heat treatment, fully complies with EN 10219 technical delivery conditions
Surface finish: Original black steel surface, coated with temporary anti-rust oil inside & outside; hot-dip galvanized / painted finish available on request
Dimensional Tolerance Standard (EN 10219-2)
Outer diameter deviation: ±1% OD, minimum absolute tolerance ±0.5 mm
Wall thickness deviation (WT ≤ 5mm): ±10% nominal thickness
Out-of-roundness of circular tube: ≤ 2% of outer diameter
Straightness: ≤ 1.5 mm per meter length
Product Advantages
Stable mechanical performance and reliable low-temperature toughness at 0℃ environment
High strength-to-weight ratio, lightweight for structural load-bearing
Superior weldability, easy for on-site fabrication and connection
Precise dimensional control meeting strict European industrial tolerance
Uniform wall thickness, compact welded seam, long service life
Fully certified to EU EN standard, applicable for European construction engineering projects
Main Applications
Widely used in European civil & industrial structural engineering fields:
Building steel structures, roof trusses, support frames
Civil engineering, bridge auxiliary structures
Mechanical structural brackets, vehicle chassis components
Architectural curtain wall supports, steel structure workshops
Utility engineering, stadium & public facility steel frames
Quality Inspection & Certification
Full dimensional measurement of OD, WT, length and straightness
Mechanical property test: tension test, 0℃ impact test
Chemical composition spectral analysis inspection
Weld seam non-destructive inspection (UT/PT)
Mill test certificate (MTR) provided, fully traceable production batch
Compliance with EU CE structural steel standard requirements
Packaging & Delivery
Packaging: Bundled with steel strips, waterproof woven cloth wrapping
Marking: Each bundle marked with standard, grade, size, heat number, batch No.
Delivery port: Main Chinese coastal ports (FOB/CIF/DAP terms available)
Customization: Accept customized length, surface treatment, special packaging and bulk order production
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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