ISO 10679:2019 Steels – Cast tool steels. This document specifies tool steel compositions for castings. NOTE Annex A gives information on ISO grade designation and available UNS numbers which are similar to the ISO grade designation. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4990, Steel castings — General technical delivery requirements 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 4990 apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — ISO Online browsing platform: available at https://www.iso.org/obp — IEC Electropedia: available at hup://www.electropedia.org/ 4 Information to be supplied by the purchaser The purchaser shall supply, in the enquiry and order, the following information: a) the grade required (see Table 1) b) the heat treatment condition, including none or as-cast, for delivery to purchaser and, if required, Brinell hardness related to composition and heat treatment; c) the surfaces which will be machined by the purchaser or user; d) part drawings or solid model for each casting. 5 General conditions for delivery Materials delivered in accordance with this document shall conform to the applicable requirements of ISO 4990, including the supplementary requirements that are indicated on the enquiry and purchase order. Welding may be carried out only when approved by the purchaser. 6 Chemical composition The chemical composition shall conform to the values given in Table 1. 7 Heat treatment Heat treatment shall be agreed between the manufacturer and the purchaser. The annealing temperature and Brinell hardness given in Table 2 are for in formation only. 8 Marking Marking shall be as specified in Iso 4990. 9 Supplementary requirements A list of normative supplementary requirements for use at the option of the purchaser is included in ISO 4990 and is ordinarily considered suitable for use with this document. The supplementary requirements shall only apply when agreed upon by the manufacturer and purchaser as specified on the enquiry and purchase order. Other requirements may be specified upon agreement between the manufacturer and purchaser.ISO 10679 pdf download.
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