DIN 17742 applies to cold-coiled compression springs made from round wire with a diameter between 0.2 mm and 20 mm. It covers:
This standard does not cover hot-coiled springs, conical springs, or springs made from non-round wire. din 17742 pdf
This is the most referenced part of any DIN 17742 PDF. A typical table includes: DIN 17742 applies to cold-coiled compression springs made
| Material designation | C max% | Si max% | Mn% | Ni% | Fe% | Other | |----------------------|--------|---------|-----|-----|-----|-------| | 2.4496 (NiFe 48) | 0.05 | 0.3 | 0.3 – 0.6 | 47 – 49 | Balance | -- | | 2.4473 (NiFe 36) | 0.05 | 0.3 | 0.2 – 0.6 | 35.5 – 36.5 | Balance | Co ≤ 0.5, Cr ≤ 0.25 | This standard does not cover hot-coiled springs, conical
Critical takeaway: Even a 0.1% deviation in nickel content can ruin the magnetic or expansion properties. Hence, the PDF table must be consulted before alloy production.
Yes. The English translation is considered authentic and legally binding for international contracts. However, German courts may still require the German original.
This report provides an overview of DIN 17742, including its purpose, technical specifications, and relevance for engineering, design, and manufacturing. It does not reproduce the copyrighted standard text but summarizes its known provisions.