Introduce:
In the field of steel production, two grades stand out – S275JR and S355JR. Both belong to the EN10025-2 standard and are widely used in various industries. Although their names sound similar, these levels have unique properties that set them apart. In this blog, we’ll delve into their main differences and similarities, examining their chemical composition, mechanical properties, and product forms.
Differences in chemical composition:
First, let’s address the differences in chemical composition. S275JR is carbon steel, while S355JR is low alloy steel. This difference lies in their fundamental elements. Carbon steel contains mainly iron and carbon, with smaller amounts of other elements. On the other hand, low-alloy steels, such as S355JR, contain additional alloying elements such as manganese, silicon, and phosphorus, which enhance their properties.
Mechanical behavior:
In terms of mechanical properties, both S275JR and S355JR show significant differences. The minimum yield strength of S275JR is 275MPa, while that of S355JR is 355MPa. This strength difference makes S355JR ideal for structural applications that require greater strength to withstand heavy loads. However, it should be noted that the tensile strength of S355JR is less than that of S275JR.
Product form:
From the perspective of product form, S275JR is similar to S355JR. Both grades are used in the manufacture of flat and long products such as steel plates and steel pipes. These products are designed for a variety of applications in industries ranging from construction to machinery. In addition, semi-finished products made of hot-rolled non-alloy high-quality steel can be further processed into various finished products.
EN10025-2 standard:
To provide a broader context, let’s discuss the EN10025-2 standard that applies to the S275JR and S355JR. This European Standard specifies the technical delivery conditions for flat and long products, including plates and tubes. It also includes semi-finished products that undergo further processing. This standard ensures consistent quality across different grades and qualities of hot-rolled non-alloy steel.
What S275JR and S355JR have in common:
Despite their differences, the S275JR and S355JR have some things in common. Both grades comply with EN10025-2 standards, demonstrating their adherence to strict quality control measures. In addition, they have a wide range of applications in various industries due to their good properties, including good weldability and processability. Additionally, both grades are popular choices for structural steel and can offer their own advantages depending on specific requirements.
In summary:
To summarize, S275JR and S355JR may have similar names, but they are different grades of steel with unique properties. S275JR is carbon steel, while S355JR is low alloy steel with different mechanical and chemical properties. However, they all follow the same EN10025-2 standard, ensuring quality and adhering to technical delivery conditions. Understanding these differences and commonalities is critical to selecting the right grade for specific applications and requirements. Choosing the correct grade is critical to ensuring optimal performance of your project. Working with professional suppliers of S275JR, S355JR materials such as Shandong Jinbaicheng Metal Materials Co., Ltd. guarantees high-quality products tailored to your specific needs. For inquiries, please reach to our Official website: www.sdjbcmetal.com Email: jinbaichengmetal@gmail.com or WhatsApp at https://wa.me/18854809715 .
Post time: Jan-22-2024