Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of en 10219 180×4.5 s275j0h in China. Welcome to buy discount en 10219 180×4.5 s275j0h made in China here from our factory. Quality products and low price are available.
Product introduction
EN 10219 180×4.5 S275J0H Circular Hollow Section
Product Description
This is a cold-formed welded structural circular hollow section (CHS), manufactured in strict accordance with EN 10219-1 / EN 10219-2 European standards for non-alloy fine-grain structural steels. Adopting high-frequency electric resistance welding (ERW) cold forming process, it features stable structural strength, good 0℃ low-temperature toughness, excellent weldability and cost-effective performance. It is widely applied in European general construction, civil infrastructure, building steel structures and conventional load-bearing engineering projects.
Basic Product Specifications
Product Name: Cold-Formed Welded Circular Structural Hollow Section (CHS)
Executive Standard: EN 10219-1 / EN 10219-2
Steel Grade: S275J0H (Material Number: 1.0149)
Outer Diameter (OD): 180 mm
Wall Thickness (WT): 4.5 mm
Inner Diameter (ID): 171 mm (OD − 2×WT)
Manufacturing Process: Cold roll forming + High-Frequency Electric Resistance Welding (ERW)
Delivery Condition: As-formed, no post heat treatment
Surface Finish: Original black steel surface, coated with temporary anti-rust oil inside and outside
Steel Grade Explanation (S275J0H)
S: Structural steel for load-bearing components
275: Minimum yield strength ≥ 275 MPa (for wall thickness ≤ 16 mm)
J0: Guaranteed impact energy performance at 0 ℃, minimum impact value ≥ 27 J
H: Special symbol for structural hollow section steel
Dimensional Tolerance (EN 10219-2 Standard)
| Item | Nominal Value | Standard Tolerance |
|---|---|---|
| Outer Diameter (OD) | 180 mm | ±1% OD, minimum absolute tolerance ±0.5 mm |
| Wall Thickness (WT) | 4.5 mm | ±10% nominal thickness (WT ≤ 5 mm) |
| Out-of-Roundness | - | ≤ 2% of outer diameter |
| Standard Length | 6m / 12m fixed length | ±50 mm |
| Straightness | - | ≤ 1.5 mm per meter length |
Mechanical Properties (EN 10219-1 Standard)
| Property | Standard Requirement |
|---|---|
| Minimum Yield Strength ReH | ≥ 275 MPa (t ≤ 16 mm) |
| Tensile Strength Rm | 410 – 560 MPa |
| Elongation at Break (A) | ≥ 22 % |
| Impact Test Temperature | 0 ℃ |
| Minimum Impact Energy KV | ≥ 27 J |
| Weldability | Excellent, suitable for all conventional welding methods, no preheating required |
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 Process
Raw material: High-quality hot-rolled low-carbon structural steel coil complying with EN 10219 requirements
Production flow: Cold roll forming → high-frequency resistance welding → sizing & straightening → surface inspection → dimensional verification → anti-rust treatment
Weld quality: Uniform full-penetration weld seam, free of cracks and inclusions, meeting EN weld standards
Optional surface treatment: Hot-dip galvanized, painted finish, customized treatment available on request
Product Advantages
Fully compliant with EU EN 10219 standard, eligible for European construction project certification
Economical structural steel with reliable strength and moderate toughness
Stable 0℃ impact toughness, adaptive to normal outdoor ambient environments
Precise dimensional control, uniform wall thickness and smooth surface
Superior machinability, easy for on-site cutting, drilling and fabrication
Excellent weldability, low carbon equivalent, convenient for field connection
Main Applications
Building steel structures: Roof trusses, support frames, columns and beams
Civil engineering: Municipal infrastructure, highway auxiliary structures
Industrial construction: Steel workshop frames, mechanical equipment supports
Architectural curtain wall supports, prefabricated building structures
General light & medium load-bearing structural engineering worldwide
Quality Inspection & Certification
Full dimensional inspection of OD, WT, length, straightness and out-of-roundness
Mechanical property tests: Tensile test, 0℃ Charpy impact test
Chemical composition spectral analysis verification
Non-destructive weld inspection (PT / UT)
Mill Test Report (MTR) provided with complete heat number batch traceability
Meet EU structural steel technical delivery requirements
Packaging & Delivery
Packaging: Bundled with steel strips, wrapped with waterproof woven cloth
Marking: Each bundle clearly marked with standard, grade, size, heat number and batch number
Trade terms: FOB, CIF, DAP, DDU all available
Shipping ports: Major Chinese coastal ports (Qingdao, Tianjin, Shanghai, Ningbo)
Customization: Accept customized length, end finishing and surface treatment
Contact Us
For price quotation, stock status, lead time and customized service of EN 10219 180×4.5 S275J0H circular hollow sections, please contact our sales team. We provide professional technical support and stable quality supply for your engineering projects.
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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