Din 17742 Pdf | FHD |

Alloy 2.4475 must match the expansion of borosilicate glass. The PDF provides the exact curve of expansion from 20°C to 450°C. A mismatch, even by 5%, results in cracked seals and hermetic failure.

Explains the material numbering system (Werkstoffnummer). For example: din 17742 pdf

Mu-metal (2.4499) requires a specific annealing cycle in hydrogen atmosphere. The DIN 17742 PDF includes mandatory notes on heat treatment to achieve the specified permeability (μ4 ≥ 60,000). A non-compliant alloy will allow stray magnetic fields, ruining image quality. Alloy 2

DIN 17742 is a standard published by the Deutsches Institut für Normung (DIN) in Germany. Its full title translates to: "Rolled strips of nickel-iron alloys for thermostat bimetals – Technical delivery conditions." Without a unified standard like DIN 17742, manufacturers

This standard specifies the chemical composition, mechanical properties, dimensional tolerances, and testing methods for strips used in the production of thermostatic bimetals. These bimetals are essential components in devices that convert temperature changes into mechanical displacement, such as:

Without a unified standard like DIN 17742, manufacturers would face inconsistencies in expansion behavior, spring properties, and reliability—leading to product failures.