HEM240 European standard H-beam S355JR and S355J2 product details.
1. Overview. HEM240 European standard H-beam is a high-quality construction steel, which is widely used in bridges, construction and machinery manufacturing and other fields. Among them, S355JR and S355J2 are two common models, which are slightly different in terms of chemical composition, mechanical properties and use. This article will give a detailed introduction to these two types of HEM240 European standard H-beams to help readers better understand their characteristics and applications.
Second, the chemical composition.
The chemical composition of S355JR and S355J2 is slightly different. Among them, S355Jr has a slightly higher carbon content than S355J2, while S355J2 has slightly higher phosphorus and sulfur content than S355JR. This difference makes the two types of steel have different mechanical properties and corrosion resistance.
3. Mechanical properties.
The mechanical properties of S355JR and S355J2 are also different. According to the European standard, the upper limit of the tensile strength of the S355JR is 440MPa and the yield strength is 340MPa;The upper limit of the tensile strength of S355J2 is 440MPa, and the yield strength is 320MPa. In addition, the elongation of the S355JR is slightly higher than that of the S355J2. These differences in mechanical properties make the two types of steel suitable for different applications.
Fourth, use. Due to the difference in chemical composition and mechanical properties of S355JR and S355J2, their application scenarios are also different. In general, the S355JR is suitable for scenarios that require high strength and toughness, such as bridges, high-rise buildings, and heavy machinery manufacturingThe S355J2 is suitable for scenarios that require high toughness and corrosion resistance, such as chemical equipment, ships, and pipelines. Of course, the specific type of steel to use needs to be comprehensively considered according to factors such as engineering requirements and cost.
5. Summary. HEM240 European standard H-beam S355JR and S355J2 are two different types of high-quality construction steel, which are slightly different in terms of chemical composition, mechanical properties and uses. Understanding their characteristics and application scenarios helps us to select the right steel for the actual project, so as to ensure the quality and safety of the project. In the future, with the continuous progress of science and technology and the continuous improvement of application demand, the application prospect of HEM240 European standard H-beam S355JR and S355J2 will be broader.