DIN 17100 St52-3 seamless steel tubes are widely recognized for their superior mechanical properties and chemical composition, making them an ideal choice for numerous industrial applications. This article provides a detailed overview of the key characteristics and benefits of these seamless tubes, along with insights into their applications and supply cases from TJC Steel Group.

Chemical Composition

The chemical composition of DIN 17100 St52-3 seamless steel tubes ensures their high strength and durability. The tubes contain a maximum of 0.20% carbon (C), 0.50% silicon (Si), 1.98% manganese (Mn), 0.040% phosphorus (P), and 0.040% sulfur (S). This precise balance of elements guarantees excellent material properties for various applications.

Mechanical Properties

The mechanical properties of DIN 17100 St52-3 seamless steel tubes are noteworthy. With a minimum yield strength of 355 MPa and an ultimate tensile strength ranging from 490 MPa to 630 MPa, these tubes can withstand significant loads. Additionally, they possess a minimum elongation of 18%, indicating good ductility and toughness.

Heat Treatment States

DIN 17100 St52-3 seamless steel tubes are available in various heat treatment states, including hot rolling, controlled rolling, normalizing, annealing, normalizing rolling, and TMCP (Thermo-Mechanical Control Process). These treatment methods enhance the material's mechanical properties and structural integrity, ensuring reliable performance in demanding applications.

Dimensional Ranges

DIN 17100 St52-3 seamless steel tubes are available in a wide range of dimensions, catering to the needs of various industries. The exact size range depends on the specific application and requirements of the end-user. However, the tubes can be customized to fit specific dimensions, ensuring optimal fit and performance.

Impact Testing

Impact testing is a crucial aspect of DIN 17100 St52-3 seamless steel tubes. These tubes undergo rigorous impact testing to evaluate their ability to withstand sudden and severe impacts. The minimum impact energy value for these tubes is 27J at -20°C, indicating their excellent impact resistance.

Main Applications

DIN 17100 St52-3 seamless steel tubes find widespread applications in various industries. They are commonly used in civil construction, underground engineering, heavy machinery manufacturing, engineering and mining machinery, metallurgical machinery, bridge structures, ocean structures, plant buildings, and railway stations. Their superior strength, durability, and reliability make them a preferred choice for critical applications.

Supply Cases from TJC Steel Group

As a leading supplier of DIN 17100 St52-3 seamless steel tubes, TJC Steel Group has a robust supply chain and extensive experience in meeting the needs of diverse industries. We have successfully supplied these tubes to various projects worldwide, including civil construction projects, oil and gas pipelines, and industrial machinery. Our ability to customize the tubes to specific dimensions and requirements has earned us a reputation for excellence in the industry.

In conclusion, DIN 17100 St52-3 seamless steel tubes offer exceptional mechanical properties, chemical composition, and dimensional flexibility, making them an excellent choice for various industrial applications. With TJC Steel Group as your trusted supplier, you can ensure reliable performance and satisfaction in your projects.