BS ISO 630-1:2021 pdf download – Structural steels Part 1: General technical delivery conditions for hot-rolled products.
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) the quantity required; b) the type of product; c) the nominal dimensions and tolerances on dimensions and shape of the product; d) the number of the relevant part of ISO 630; e) the steel name (grade) or designation; f) all required options (see 5.2); g) inspection document to be issued (see 7.1). 5.2 Options A number of options for agreement between the manufacturer and purchaser are specified in this document and listed below. If the purchaser does not specify any of these options at the time of enquiry and order, the products shall be supplied in accordance with the basic specification (see 5.1): a) specification of the steelmaking process (see 6.1); b) required delivery condition (see 6.2), applicable for ISO 630‑2 and ISO 630‑5; c) product analysis (see 6.3.2); d) alternative weldability formula (see 6.3.3); e) mechanical properties after additional heat treatment (see 6.4.1); f) specification of special classes for the reduction of area (see 6.4.4); g) deviating surface condition standard (see 6.5); h) deviating frequency of testing (see 8.2); i) specification of an analytical method (see 9.1); j) deviating testing temperature for the impact test (see 9.3); k) testing of impact properties in the transverse direction (see 9.3); l) ultrasonic testing upon agreement with a referenced standard (see 9.5); m) marking method (see Clause 10); n) information to be given by marking (see Table 1);o) suitability for hot-dip galvanizing upon agreement with a referenced standard (applicable for ISO 630-2, ISO 630-3, ISO 630-4 and ISO 630-6). 6 Requirements 6.1 Steelmaking process 6.1.1 Unless a special steelmaking process has been agreed upon at the time of enquiry and order, the steelmaking process for steels in accordance with this document shall be at the discretion of the manufacturer. If a special steelmaking process has been specified, this shall be reported in the inspection document. 6.1.2 The method of deoxidation shall be as given in the individual parts of ISO 630. 6.2 Delivery condition The delivery conditions are given in the individual parts of ISO 630. 6.3 Chemical composition 6.3.1 Heat analysis The heat analysis reported by the steel producer shall comply with the requirements of the individual parts of ISO 630 and shall be included in the relevant inspection document. If CEV or P cm is applied, the heat analyses of all elements which are needed for calculation of CEV and P cm shall be reported.