DIN 17175 is a German standard for seamless steel pipes designed for high-temperature applications, such as boilers, heat exchangers, and pipelines. These pipes are made from heat-resistant carbon and alloy steels, ensuring excellent strength, durability, and resistance to oxidation and scaling at elevated temperatures. The standard specifies material grades like St35.8, St45.8, and 13CrMo4-5, each suited for different operating conditions.
DIN 17175 pipes undergo rigorous testing, including hydrostatic and non-destructive examinations, to ensure reliability and safety. Widely used in power plants and industrial systems, they are ideal for high-pressure and high-temperature environments.
Standard and Material Grades: DIN 17175 specifies seamless steel pipes for high-temperature applications, including non-alloy grades like St35.8 and alloy grades such as 15Mo3, 13CrMo4-4, and 10CrMo9-10. These pipes are used in boilers, pipelines, and pressure vessels operating at temperatures up to 600°C.
For St35.8, the chemical composition includes Carbon (max 0.17%), Silicon (0.10–0.35%), Manganese (0.40–0.80%), Phosphorus (max 0.040%), and Sulfur (max 0.040%). Its tensile strength is 360–480 MPa, with a yield strength of 235 MPa for wall thicknesses ≤16 mm. For 15Mo3, Carbon is 0.12–0.20%, Molybdenum 0.25–0.35%, with a tensile strength of 450–600 MPa and yield strength of 270 MPa for wall thicknesses ≤16 mm.
DIN 17175 seamless steel pipes are designed for high-temperature and high-pressure applications, making them ideal for demanding industrial environments. They offer high tensile strength and excellent ductility, facilitating fabrication and installation. These pipes also exhibit good heat resistance, ensuring reliable performance in high-temperature conditions.
DIN 17175 seamless steel pipes are widely used in the construction of boilers, pipelines, and pressure vessels. They are essential in the power generation industry for steam boilers and superheaters, and in the petrochemical industry for heat exchangers and high-pressure pipelines. Their ability to withstand high temperatures and pressures makes them suitable for use in chemical processing and other energy-related applications.