Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of en 10219 377×10 s355j2h in China. Welcome to buy discount en 10219 377×10 s355j2h made in China here from our factory. Quality products and low price are available.
Product introduction
EN 10219 377×8 S355J2H Structural Hollow Sections
Product Overview
EN 10219 377×8 S355J2H is a cold-formed welded circular hollow section conforming to European standard EN 10219‑1 & EN 10219‑2. With an outer diameter of 377 mm, wall thickness of 8 mm, and steel grade S355J2H, it features excellent structural strength, guaranteed low-temperature toughness, and stable weldability, widely used in steel construction, engineering structures, bridges, and machinery.
Basic Specifications
| Item | Details |
|---|---|
| Standard | EN 10219‑1 / EN 10219‑2 |
| Size | 377 mm (OD) × 8 mm (WT) |
| Steel Grade | S355J2H (1.0578) |
| Section | Circular hollow section |
| Production Process | Cold‑formed, longitudinally welded (ERW / LSAW) |
| Length | 6m, 12m or custom fixed lengths |
| End Condition | Plain end / beveled end |
| Surface | Anti-rust oil, black paint; optional painting or galvanizing |
Designation Explanation
S – Structural steel
355 – Minimum yield strength ≥ 355 MPa
J2 – Impact test required at ‑20°C, min 27 J
H – Hollow section
Chemical Composition (Typical, max %)
C ≤ 0.22
Mn ≤ 1.60
Si ≤ 0.55
P ≤ 0.035
S ≤ 0.035
CEV/CET controlled for good weldability
Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (ReH) | ≥ 355 MPa (t ≤ 16 mm) |
| Tensile Strength (Rm) | 470 – 630 MPa |
| Elongation (A) | ≥ 20% |
| Charpy Impact (‑20°C) | ≥ 27 J (longitudinal) |
| Bend Test | 180° free of cracks |
Dimensional Tolerances
Outer diameter: ±1.0% of OD
Wall thickness: ±10%
Straightness: ≤ 2 mm/m
Ovality within standard requirements
Key Advantages
High structural strength and load‑bearing performance
Excellent low‑temperature toughness down to ‑20°C
Stable and reliable for outdoor and cold environments
Good weldability and machinability
Strict compliance with EN 10219 standards
Applications
Building steel structures (columns, beams, supports)
Bridge structures and infrastructure
Industrial equipment frames
Power transmission towers
Offshore and onshore structural components
Engineering machinery and support structures
Inspection & Test
Tensile test, flattening test, bending test
Charpy V‑notch impact test at ‑20°C
Ultrasonic or hydrostatic test
Dimensional and visual inspection
Chemical analysis
Packaging & Marking
Bundled with steel strips, plastic end caps
Seaworthy export packing
Marked with standard, grade, size, heat number, length, manufacturer logo
Quality Assurance
Manufactured under ISO 9001 quality system
Full Material Test Certificate (MTC) supplied
Compliance with EN 10219‑1 & EN 10219‑2
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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