In the global construction and infrastructure sector, the selection of steel pipes directly affects the safety, cost, and efficiency of a project. The European standard EN 10219 and the American standard ASTM A252 are two major specifications for structural steel pipes. This article will conduct an in-depth comparison from the perspectives of steel grades, applications, production processes, testing items, and international application cases, and provide accurate selection suggestions combined with the technical advantages of LONGMA. Comparison of Steel Grades Between…

In the global application field of steel pipes, EN 10219 and ASTM A53 are two widely used standards, representing the European standard and the American standard system respectively. They differ significantly in material properties, applications, production processes, testing items, and project adaptability. So, should your engineering project choose EN 10219 or ASTM A53? This article will analyze the differences between these two standards from multiple perspectives and introduce the advantages of choosing us as your long-term partner.   Comparison of…

When selecting steel pipes for structural or transportation purposes, EN 10219 and API 5L are two widely adopted international standards. They differ significantly in terms of steel grades, applications, production processes, testing methods, and application fields. So, which standard should your project choose? This article will analyze the differences between EN 10219 and API 5L from multiple perspectives to help you make an appropriate choice.   Comparison of Steel Grades Comparison Items EN 10219 API 5L Common steel grades S235JRH,…

What is EN10219 S235JR hollow section(S235JRH LSAW steel pipe)？ In the field of steel structures, S235JRH longitudinal submerged arc welded (LSAW) steel pipes under the EN10219 standard are widely used cold-formed welded hollow sections. As a typical representative of non-alloy structural steels, they have become the preferred material for many projects due to their stable performance and strict production standards. Chemical Composition and Mechanical Properties of S235JR According to the EN10219 standard, the chemical composition and mechanical properties of S235JR…

What is EN10219 S355J2 hollow Section (S355J2H LSAW steel pipe)？ EN 10219 is a standard developed by the European Union for cold-formed welded hollow sections for structural use, which is widely applied worldwide. S355J2 is one of the high-strength low-alloy structural steel grades under this standard, featuring excellent toughness, weldability, and impact resistance, making it particularly suitable for structural engineering in low-temperature environments. The following is a detailed explanation of this section from aspects such as standards, performance, and applications.…

What is EN10219 S355J0H hollow section(S355J0H LSAW Steel Pipe)？ In the field of metal structure, submerged arc welding EN10219 S355J0H straight seam pipe, as an important representative of cold-formed welded hollow sections, has become the material of choice in construction, bridge construction and other fields due to its stable mechanical properties and strict manufacturing standards. This paper analyzes the key performance and performance value of S355J0H in detail based on EN10219. Chemical composition and mechanical properties EN10219 S355J0H According to…

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, EN10219 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. EN10219 S355JR Character meaning According to EN10219-1:2006 standard, clause 4.2.2, the meaning of the characters of S355JRH…

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 EN10219 Structural Steel Pipes 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(EN10219 Structural Steel Pipes) 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…

EN 10219 Steel Pipe Tolerances and Dimensional Standards Explained LONGMA produces and stocks a full range of EN10219-1 Cold Finished Structural Hollow Section stricktly follow EN 10219 steel pipe tolerances. 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…

EN 10219 S235JRH vs S355J2H: What's the Difference? In the EN 10219 standard system for cold-formed welded steel pipes, S235JRH and S355J2H(S235JRH vs 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…

What Is EN10219? A Complete Guide to Cold-Formed Welded Steel Tubes In modern architecture and industrial manufacturing, EN10219 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, EN10219 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…