The size standard and grade of German standard H-beam.
First of all, let's understand the size standard of German standard H-beam. According to the IPBL300 standard, the dimensions of the German standard H-beam should comply with the provisions of the German standard DIN 18800. Specifically, the height (H) of German standard H-beams is usually between 100mm and 600mm, and the web thickness (T1) and flange plate thickness (T2) vary according to different models and uses. In order to ensure the performance and stability of German standard H-beam, its dimensional deviation should comply with the provisions of the relevant standards.
Next, let's take a look at the grade of German standard H-beam. According to the IPBL300 standard, the grade of German standard H-beam consists of the letter "ST" and a set of numbers. Among them, "ST" stands for German standard hot-rolled structural steel, and the numbers represent different models and specifications. Specifically, the number "300" indicates that the model has a cross-sectional area greater than 300 square centimeters, while the number "400" indicates a cross-sectional area greater than 400 square centimeters. In addition, according to different uses and performance requirements, German standard H-beam also has other different grades, such as ST37, ST45 and so on.
In order to ensure the quality and reliability of German standard H-beams, a series of quality control and testing are required during its production process. First of all, manufacturers need to carry out quality checks on raw materials to ensure that they meet the relevant standards and regulations. Secondly, in the production process, mature processes and technologies should be used to ensure that the size, shape and performance of German standard H-beam meet the requirements. After that, the finished product needs to undergo a comprehensive quality inspection, including visual inspection, dimensional measurement, mechanical property test, etc. Only the German standard H-beam that has passed the quality inspection can be shipped and used in the project.
In short, as an excellent structural material, the size standard and grade of German standard H-beam are very important. Understanding and mastering the size standards and grades of German standard H-beams helps us to better select and apply this material to ensure the safety and reliability of the project. In the future, with the progress of science and technology and the continuous improvement of application needs, the performance and application fields of German standard H-beam will be further expanded.