Technical specifications and scope of the DIN 2576 standard
The DIN 2576 standard defines the design parameters for flat steel flanges designed for a nominal pressure of 10 kgf/cm² (PN 10) in the range of nominal diameters from DN 10 to DN 500. These elements are widely used in pipeline systems to provide reliable detachable connections.
The regulation establishes geometric dimensions, material selection requirements, machining parameters for sealing surfaces, and calculated product weight indicators. Production processes, supply regulations, and the marking system are based on the requirements of the DIN 2519 standard, while sealing surface parameters comply with DIN 2526 specifications.
DIN 2576 flanges are used as mating elements for the installation of shut-off and control valves and for integrating pipeline sections into a single engineering network.
Materials used
- Stainless steels (austenitic and corrosion-resistant grades)
- Carbon structural steels
- Alloy steels for specific operating conditions
Important note from EV Group China experts: The DIN 2576 standard is historical and is currently considered obsolete. In modern engineering practice, the current harmonized standard DIN EN 1092-1 (type 01) should be used for the selection and production of flanges.