ISO 7452:2013 熱間圧延鋼板—寸法と形状の公差 | ページ 2

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 7452 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 3, Steels for structural purposes.

This third edition cancels and replaces the second edition (ISO 7452:2002), which has been technically revised.

1 Scope

This International Standard specifies requirements for tolerances for hot-rolled steel plates made on a reversing mill with the following characteristics:

• a) nominal thickness: 3 mm ≤ t ≤ 400 mm;
• b) nominal width: w ≥ 600 mm.

This International Standard applies to, but is not limited to, steel grades defined in all parts of ISO 630, in ISO 9328-1 to ISO 9328-6 and in ISO 683-1, ISO 683-2, ISO 683-10 and ISO 683-11.

This International Standard does not apply to stainless steel.

If not otherwise agreed, the tables in Annex A apply to steel grades defined in Annex A of all parts (except Part 1) of ISO 630 or in ISO 9328-1 to ISO 9328-6.

If not otherwise agreed, the tables in Annex B apply to steel grades defined in Annex B of all parts (except Part 1) of ISO 630 or in ISO 9328-1 to ISO 9328-6.

For steel grades defined in ISO 683-1, ISO 683-2, ISO 683-10 and ISO 683-11, the selection of Annex A or B is done at the time of enquiry and order.

This International Standard does not include continuous mill products, custom-made plate, checker plate or bulb plate for flooring or wide flats.

This International Standard does not include the following steel products, which are covered by other International Standards:

• sheet and strip – refer to ISO/TC 17/SC 12 “Continuous mill flat rolled products”;
• tubular products – refer to ISO/TC 5/SC 1 “Steel tubes”.

2 Normative references

The following referenced documents are indispensable for the application 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.

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 6929 apply.

Bibliography