EN10219-1 S235J2H Pipe
EN10219-1 S235J2H Pipe – Cold-Formed Structural Hollow Section for Demanding Engineering Applications
Hebei Longma Group supplies premium EN10219-1 S235J2H Pipe manufactured to European structural standards, offering enhanced impact toughness at -20°C for challenging construction environments. Our factory covers an area of 230,000 square metres, has more than 20 years of manufacturing experience in ERW steel pipes, with an annual production capacity of over 1,000,000 tons, and the products are sold to more than 90 countries. The outside diameter of our product is in the range of 60.3mm to 2032mm and wall thickness from 4mm to 100mm. Our product has a constant yield strength of 235 MPa and its Charpy V-notch impact resistance has been confirmed. API 5L and ISO certification compliance and 100% traceability. Fastest delivery in 7 days. You may be confident your structural projects are on track and up to safety requirements.
Superior impact toughness with cold climate performance
The J2 mark of the product differentiates it from regular grades by guarantyd impact performance. Minimum Charpy V-notch energy of 27 Joules at -20°C is required for your projects in cold climates or in seasonal temperature swings.
This improved toughness avoids brittle fracture during production, transport and service life. Improved low temperature resistance when developing infrastructure considerably minimises risk in northern climes or offshore sites that endure severe marine conditions.
We maintain a very specific chemical composition. Carbon is limited to 0.17%, manganese to 1.40%. This improves weldability and mechanical stability without sacrificing toughness.
Structural Reliability via Balanced Mechanical Properties
Your engineering designs need dependable performance. The S235J2H hollow sections we provide have a tensile strength of 360-510 MPa and a minimum elongation of 24% which provides the ductility required for dynamic load applications.
The minimum yield strength of 235 MPa guaranties that all manufacturing lots will have the same load carrying capability. This dependability is important for the calculation of safety factors of bridge elements, building frames or chassis of heavy machines.
Dimensional accuracy meets EN 10219-2 limits for deviations in wall thickness, out of roundness and straightness. You get pipes that go right into your manufacturing process without delay in the adjustment.
Technical Specifications of EN10219-1 S235J2H Pipe
| Parameter | Specification |
|---|---|
| Standard | EN10219-1 |
| Grade | S235J2H |
| Outer Diameter Range | 60.3mm – 2032mm (2" – 80") |
| Wall Thickness | 4mm – 100mm |
| Yield Strength (Min) | 235 MPa |
| Tensile Strength | 360 – 510 MPa |
| Elongation (Min) | 24% |
| Impact Test Temperature | -20°C |
| Impact Energy (Min) | 27J (Charpy V-notch) |
| Carbon Content (Max) | 0.17% |
| Manganese Content (Max) | 1.40% |
Comprehensive Manufacturing Capabilities
Longma Group's integrated manufacturing infrastructure helps you meet your project schedules. Our steel plate is sourced from approved Chinese mills like Shagang, TISCO and Bao Steel, assuring traceable raw material quality from origin.
Using our ERW welding method, we achieve uniform longitudinal seams that are mechanically equivalent to the performance of the base metal. Post-weld heat treatment improves the toughness of the weld zone, which meets the rigorous requirements of structural applications.
Each batch produced is fully inspected for dimensional correctness, mechanical characteristics and impact resistance. Mill Test Certificates according to EN 10204 3.1 including chemical analysis, mechanical testing and heat number traceability.
Value-Added Services for Project Efficiency
Beyond standard pipe supply, we provide fabrication services tailored to your installation needs. Our workshop handles cutting to length, beveling for welding preparation, and perforating for connection requirements.
When your application demands corrosion protection, we offer hot-dip galvanizing with controlled silicon and phosphorus levels to prevent the Sandelin Effect. Alternative coatings include FBE, 2PP, 3LPE, and 3PE systems, extending service life in aggressive environments.
Custom marking with your project specifications, heat numbers, and dimensional data simplifies site logistics. Protective packaging prevents surface damage during international shipping, reducing rework costs upon delivery.
Global Application Performance
Infrastructure developers integrate our EN10219-1 S235J2H Pipe into bridge truss systems where cyclic loading combines with temperature extremes. The enhanced toughness prevents fatigue crack initiation compared to standard S235JR grades.
Offshore construction projects utilize these hollow sections for secondary structural components in platforms operating in cold-sea environments. The -20°C impact qualification ensures safety margins where standard grades would present brittle fracture risks.
Heavy machinery manufacturers incorporate our pipes into crane booms and agricultural equipment chassis. The high strength-to-weight ratio of cold-formed sections increases payload capacity while maintaining global climate operability.
Quality Assurance and Compliance Documentation
Your procurement process requires comprehensive documentation. We provide complete technical files supporting project approval and regulatory compliance across international markets.
Standard deliverables include Mill Test Certificates with complete chemical composition, Mechanical test results including impact data, Dimensional inspection reports and weld quality verification documents.
If your project specification requires third-party validation, we can manage the examination with third-party organisations such as BV, TÜV or Intertek. The CE marking and Declaration of Performance documents meet the requirements of the Construction Products Regulation for permanent European construction.
Our ISO 9001, ISO 14001 and ISO 18001 certificates confirm systematic quality management, environmental responsibility and occupational safety procedures throughout manufacturing.
FAQ
Q:What is difference between S235J2H and S235JRH, S235J0H grades?
A: The main difference is the necessity of impact testing temperature. S235JRH is tested with impact at room temperature (20°C), S235J0H at 0°C and S235J2H at -20°C. This trend indicates a rising toughness need. J2H offers higher fracture resistance for your cold environment applications, decreasing the likelihood of structural failure during winter operation or shipping through cold areas. The regulated chemical composition that gives this performance also enhances uniformity in weldability.
Q: Do you have hot-dip galvanising available?
A: Yes, we manufacture S235J2H for hot-dip galvanising with regulated silicon and phosphorus concentration to avoid Sandelin Effect.When requesting quote you should indicate "suitable for galvanising" so we choose the correct raw materials and check chemistry prior to coating.Our galvanising facility controls zinc bath composition and immersion conditions in accordance with EN ISO 1461 standards, guaranteeing consistent coating thickness and adherence.Galvanised orders are supplied with coating weight data.
Q: Is EN10219-1 S235J2H suitable for pressure piping systems?
A：No, EN10219 does not specify structural hollow sections for no containment of internal pressure.For the transfer of fluids or gases under pressure, you should consider using seamless pressure tubes according to EN 10216 or welded pressure pipes according to EN 10217.These standards provide more criteria for hydraulic pressure resistance testing and varied specifications for mechanical properties.We can provide both structural and pressure rated items. Please contact our technical team to help determine the right specification for your application.
Q：How does your quality control ensure consistent impact toughness?
A：Our quality system implements multiple verification stages. Raw material inspection confirms chemical composition meets J2H requirements before production. During manufacturing, we monitor forming and welding parameters affecting microstructure. After production, we conduct Charpy V-notch testing at -20°C on samples from each heat, verifying the 27J minimum requirement. Heat treatment parameters are recorded and correlated with test results, enabling continuous improvement. Complete traceability links your delivered pipes to specific test specimens, providing confidence in performance consistency.
Q：What lead times should we expect for customized orders?
A：Standard sizes from our regular production inventory ship within 7 days after order confirmation. Custom specifications requiring particular dimensions, lengths, or surface treatments typically need 15-25 days depending on order quantity and current production scheduling. Large-volume project orders benefit from dedicated production runs, which we schedule collaboratively with your project timeline. Early engagement during your planning phase allows us to align manufacturing capacity with your delivery requirements, avoiding delays during construction windows.
Contact Us
Partner with Hebei Longma Group for reliable EN10219-1 S235J2H Pipe supply backed by two decades of manufacturing excellence. Request technical specifications, pricing, or project consultation by emailing info@longma-group.com today.
