ISO 683-3-2019 pdf free.Heat-treatable steels, alloy steels and free-cutting steels – Part 3:Case-hardening steels. A comparison between the designation of steels given in this document with various designation systems is given in AniiexL 5 Information to be supplied by the purchaser 5.1 Mandatory information The following information shall be supplied by the purchaser at the time of enquiry and order: a) quantity to be delivered; b) designation of the product form (slab, bloom, billet, round bar or square bar, wire rod, wide flats, sheet, plate, strip, forging. etc.); c) either the designation of the dimensional standard(s) and the dimensions and tolerances selected from this or these (see Z) or, for example, in the case of drop forgings, the designation of the drawing or any other document covering the dimensions and tolerances required for the product; d) a reference to this document. i.e. ISO 6833; e) the designation of the steel type given in Table& f) standard designation for a test report 2.2 or, if required, any other type of inspection document in accordance with ISO 10474 (or in accordance with another regional standard, e.g. EN 10204 or JIS G 0415). 5.2 Options and/or supplementary or special requirements A number of…