Din En 15800.pdf
Argimiro Krishnamoorthy
DIN EN 15800: A Standard for Cylindrical Helical Springs
Cylindrical helical springs are widely used in various applications, such as automotive, aerospace, medical, and industrial sectors. They are designed to store and release energy, absorb shock, or maintain a force between contacting surfaces. However, to ensure the quality and performance of these springs, they need to comply with certain specifications and standards.
One of the most important standards for cylindrical helical springs is DIN EN 15800, which was published in 2009 by the German Institute for Standardisation (Deutsches Institut für Normung) . This standard provides quality specifications, characteristic properties, and bases of calculation for cylindrical helical springs when used as compression springs . Compression springs are the most common type of springs, which are subjected to axial loads that tend to reduce their length.
DIN EN 15800 applies to cylindrical helical springs made of round wire with a diameter of 0.1 mm to 10 mm, which are cold coiled by winding on a mandrel. Cold coiling is a process that involves forming the wire into a spring shape at room temperature or slightly above. This method produces high-strength springs with good surface quality and dimensional accuracy .
The standard specifies the following aspects of cylindrical helical springs:
- Material selection and designation
- Spring geometry and dimensions
- Spring force and stiffness
- Spring deflection and stress
- Spring relaxation and fatigue
- Spring tolerances and deviations
- Spring testing and inspection
- Spring marking and documentation
The standard also provides tables and formulas for calculating the spring characteristics, such as spring rate, spring index, spring constant, spring load, spring deflection, spring stress, spring relaxation, and spring fatigue life. Moreover, the standard gives examples of how to apply the quality specifications and tolerances to different types of compression springs, such as cylindrical, conical, barrel-shaped, or hourglass-shaped springs.
DIN EN 15800 is intended to be used by manufacturers, designers, and users of cylindrical helical springs. It aims to ensure the quality and reliability of these springs in various applications. The standard is also compatible with other international standards for cylindrical helical springs, such as EN 13906-1 (Calculation and design), EN 10270-1 (Steel wire), EN 10270-2 (Oil hardened and tempered steel wire), EN 10270-3 (Stainless steel wire), and ISO 16269-6 (Statistical tolerance intervals) .
If you want to learn more about DIN EN 15800 or download a PDF copy of the standard, you can visit the websites of SAI Global Store , IHS Markit , or Normadoc . These websites provide access to standards, technical information, and regulations from various sources.
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