DIN 17221 : 1988被替代
HOT ROLLED STEELS FOR SPRINGS SUITABLE FOR QUENCHING AND TEMPERING - TECHNICAL DELIVERY CONDITIONS
出版：German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻
This standard is included in DIN Handbook 404. Applies to hot rolled semi-finished products; hot rolled and, where required, subsequently peeled or ground steel bars (rounds and flats); hot rolled ribbed spring steels; hot rolled wire; hot rolled wire flats, and hot rolled strip; made of the spring steels listed in Table 2, normally used for the production of quenched and tempered leaf springs, torsion bar springs, conical springs, helical springs, disc springs, spring washers, and any other springy components.
EURONORM 89 : 1971 - Identical
EURONORM 89 : 1971 - Identical
ISO 683-14 : 2004 - Corresponds
