With the rapid advancement of urbanization, the reliability and safety of municipal pipelines and various infrastructure structural tubes have become critical to ensuring efficient city operations and quality of life for residents. As one of the key standards for structural steel tubes, EN 10219 steel pipes stand out for their excellent mechanical properties, corrosion resistance, and cost-effectiveness, making them widely adopted across numerous engineering sectors. This article explores several EN 10219 engineering cases, offering in-depth insights into their practical value…

What is EN10219 S355JR hollow section (S355JRH LSAW Steel Pipe) In modern buildings and engineering structures, EN 10219 S355JR hollow profiles are widely used due to their superior mechanical properties and good processing performance, especially S355JRH round tubes produced by straight seam submerged arc welding (LSAW) process. This article combines the EN10219 standard to analyze the core characteristics and applications of S355JRH in detail. I. S355JRH Character meaning According to EN10219-1:2006 standard, clause 4.2.2, the meaning of the characters of S355JRH is…

How to Choose the Right Grade of EN 10219 Steel Pipe for Your Project？ In various construction projects, the selection of EN 10219 steel pipes is crucial. Choosing the right grade of steel pipes can ensure the safe and stable operation of the project, but the wrong grade of steel pipes may cause safety hazards and economic losses. As a professional EN 10219 steel pipe manufacturer in Hebei, we are committed to producing round ERW (high-frequency straight seam welded steel…

Top Applications of EN 10219 Structural Steel Tubes in Construction and Industry The cold-formed welded structural hollow sections covered by the EN 10219 standard, with their diverse steel grade classifications and excellent mechanical properties, hold an important position in the construction and industrial fields. Different steel grades have distinct application scopes due to differences in strength, toughness, low-temperature adaptability, etc. Especially in low-temperature environments, the reasonable selection of steel grades is directly related to engineering safety and equipment reliability. Common…

EN 10219 Steel Pipe Tolerances and Dimensional Standards Explained In the field of steel pipe manufacturing, EN 10219 serves as a precise benchmark that governs the quality of cold-formed welded structural steel tubes. As a professional manufacturer of circular tubes according to EN 10219, we have a deep understanding of this standard and strictly adhere to it—especially in terms of dimensional tolerance control. We have invested significant technical resources to ensure that we deliver high-quality products that meet international standards.…

EN 10219 S235JRH vs S355J2H: What's the Difference? In the EN 10219 standard system for cold-formed welded steel pipes, S235JRH and S355J2H are two types of steel widely used in the fields of construction, machinery manufacturing and pipeline engineering. They belong to the same standard framework, but have significant differences in performance and application scenarios. In addition, for low-temperature environments, there are other special steels in EN 10219 and related standards, which together constitute a steel system that meets diverse…

What Is EN 10219? A Complete Guide to Cold-Formed Welded Steel Tubes In modern architecture and industrial manufacturing, cold-formed steel tubes are widely used in various construction projects due to their lightweight structure, high strength, and flexible processing capabilities. Especially in the European market and international projects, EN 10219 has become an essential technical standard for the production and inspection of cold-formed structural pipes. This article provides an in-depth analysis of the standard's definition, technical specifications, application scenarios, and real-world case…

EN 10219 Certificate of Conformity (EN 10204 3.1): What You Need to Know In the process of steel pipe procurement and project acceptance, the Conformity Certificate is a crucial quality document. For structural welded steel pipes manufactured in accordance with the EN 10219 standard, the EN 10204 3.1 or 3.2 certificate serves as the core basis for judging the conformity and traceability of materials. So, what is the difference between EN 10204 3.1 and 3.2? Which one should be chosen…

In modern construction and engineering fields, EN 10219 steel pipes have become one of the most widely used and reliable materials due to their excellent performance. Whether used as structural pipes for support or as essential load-bearing components, choosing the right steel pipe is crucial. However, with so many specifications and brands available in the market, making an informed purchasing decision to ensure that each pipe meets the project’s technical requirements and quality standards is a challenge that buyers must…

In today's globalized market, structural pipes, as a core material for various construction, infrastructure, and industrial projects, have always been a key focus in terms of compliance. Especially in the European market, with environmental and safety standards continuously rising, quality control and certification of products have become crucial. For manufacturers, ensuring that their products meet the EN 10219 standard and obtain CE certification is not only a prerequisite for entering the EU market, but also a key step in maintaining…

With the rapid acceleration of urbanization, the construction industry is undergoing unprecedented transformation and opportunity. Green buildings, prefabricated construction, and efficient structural design have become mainstream trends in modern architecture. In this wave of development, EN 10219 steel pipes are widely used in modern building steel structures, thanks to their outstanding performance and standardized manufacturing processes, making them a preferred choice for many structural engineers and designers. As a type of structural hollow section steel, EN 10219 steel pipes offer…

In critical infrastructure projects like wind turbine towers and cross-sea bridges, conventional steel pipes often face construction delays due to insufficient strength or low-temperature brittleness. However, EN 10219-compliant S355J2H high-strength structural pipes are emerging as the industry's new favorite - boasting not only an exceptional 355MPa yield strength but also remarkable -20°C impact resistance. Their superior weldability can reduce construction time by over 30%. With the rapid development of renewable energy infrastructure, these high-strength, high-toughness pipes are redefining industry standards...…

ASTM A671 VS ASTM A672: Raw materials, Performances, Applications (Comparison of ASTM A671 and ASTM A672 Standards and Material Properties) In the steel industry, ASTM A671 VS ASTM A672 are important standards developed by the American Society for Testing and Materials (ASTM). They are primarily used to regulate the production and application of electric fusion-welded steel pipes. Understanding the material properties specified in these two standards is crucial for selecting industrial pipelines. This article will conduct a detailed comparative analysis…

Analysis of National Standards Corresponding to EN 10219-1 & 2 Overview of EN 10219-1 & 2 Standards The EN 10219 series standards (including EN 10219 2006, BS EN 10219-1 2006, BS EN 10219 2 2006, and EN 10219 2 2006) apply to welded square tubes, rectangular tubes, and other cold-formed hollow section products made of non-alloy steel and fine-grained structural steel. These products are widely used in fields such as steel structures, support components, bridges, and machinery manufacturing. Among them,…

In steel structures, equipment manufacturing, and construction projects, are you also struggling to decide which steel pipe to choose? Especially when it comes to EN 10219 vs EN 10210, they may look similar, but their uses differ greatly. One is a cold-formed steel pipe, the other is a hot-formed steel pipe—similar appearance, but with different performance, costs, and application scenarios. How can you quickly tell them apart? How to strike the right balance between structural safety, processing efficiency, and budget?…