The DIN17121 RSt37-2 seamless steel tube is a high-quality material widely used in various industries due to its exceptional mechanical properties and chemical composition. This article aims to provide a detailed overview of its key characteristics, applications, and supply capabilities by TJC Steel Group.

Chemical Composition

The chemical composition of RSt37-2 seamless steel tubes is carefully controlled to ensure optimal performance. The carbon content ranges from 0.17% to 0.20%, depending on the thickness of the tube. Silicon content is limited to 0.55%, while manganese content is capped at 1.60%. Phosphorus and sulfur contents are strictly limited to 0.050% and 0.050% respectively. This composition ensures high strength and ductility while maintaining good weldability.

Mechanical Properties

RSt37-2 seamless steel tubes exhibit exceptional mechanical properties. The tensile strength ranges from 360 MPa to 510 MPa for tubes with a thickness of less than 3 mm, and from 340 MPa to 470 MPa for thicker tubes. The yield strength is consistently above 235 MPa, while the elongation rate is at least 17%. The impact energy, measured at +20°C, is at least 27 Joules, indicating good toughness.

Heat Treatment Status

RSt37-2 seamless steel tubes are typically supplied in a hot-rolled condition. This heat treatment process improves the mechanical properties of the steel, making it suitable for a wide range of applications. Additionally, the tubes can be further heat-treated, such as normalized or quenched and tempered, to meet specific requirements.

Dimensional Range

RSt37-2 seamless steel tubes are available in a variety of sizes to suit different applications. The outer diameter can range from small diameters suitable for precision machinery to large diameters for pipelines and structural applications. Wall thicknesses are also available in a wide range to meet specific project requirements.

Impact Testing

RSt37-2 seamless steel tubes undergo rigorous impact testing to ensure their toughness and resistance to sudden loads. The impact energy value, typically ranging from 80 to 200 Joules, depends on the specific requirements and thickness of the tube. This testing ensures that the tubes can withstand the demands of their intended application.

Applications

RSt37-2 seamless steel tubes find applications in numerous industries. In the automotive sector, they are used in chassis, suspension systems, and brake lines due to their high strength and lightweight properties. In the construction industry, they are utilized in structural applications such as bridges and high-rise buildings. The tubes are also widely used in the oil and gas industry, where their pressure-bearing capabilities and corrosion resistance are crucial.

Supply Capabilities by TJC Steel Group

As a leading supplier of steel products, TJC Steel Group offers a comprehensive range of RSt37-2 seamless steel tubes. Our extensive inventory and efficient supply chain management ensure timely delivery of tubes in various sizes and lengths. We pride ourselves on providing high-quality products and exceptional customer service to meet the specific needs of our clients.

In conclusion, DIN17121 RSt37-2 seamless steel tubes are a reliable material choice for a wide range of applications. Their excellent chemical composition, mechanical properties, and heat treatment status make them suitable for demanding applications in various industries. TJC Steel Group is committed to providing these tubes in a timely and cost-effective manner, ensuring our clients have the materials they need to succeed.