1.1 This part of ISO 6931 applies to the grades of wrought stainless steels listed in table 1, which are used in the work-hardened condition in the form of wire up to about 10 mm in diameter, for the production of springs and spring parts that are exposed to corrosive effects and sometimes slightly increased temperatures (see A.1 in annex A). 1.2 In addition to the steels listed in table 1, certain of the steel grades covered by ISO 683-13 are also used for springs, although to a much lesser extent. In these cases, the physical properties (tensile strength etc.) shall be agreed between user and supplier. 1.3 In addition to this part of ISO 6931, the general technical delivery requirements of ISO 404 are applicable.