1.1 ISO 9327的这一部分涵盖了锻件（见注释1）和轧制或锻件的交货技术条件 由下列国际使用的钢材制造的压力用钢筋（见注2）: a)具有规定室温性能和补充的非合金和合金铁素体或马氏体钢 ISO 9327-2中涵盖的高温性能要求； b)具有ISO 9327-3所涵盖的特定低温性能的镍钢； c）具有高强度（室温、高温和低温）的可焊接细晶粒钢 温度等级）包含在ISO 9327-4中； d)奥氏体和奥氏体-铁素体钢（室温和高温等级） ISO 9327-5。 注1根据ISO 6929，锻件一词在此包括开式模锻件，也包括环轧产品 作为封闭模锻件。 注2除ISO 9327第2至第5部所涵盖的国际上使用的压力用钢外，还有 在地区或全国范围内用于相同应用的其他钢材。这些其他钢材不应因此而被排除在外 国际标准，前提是它们符合船舶建造的相关国际或国家标准。 注3以下国际标准也适用于压力用途的钢产品:ISO 9328第1至5部分， ISO 9329第1至4部分，ISO 9330第1至6部分，ISO 4978。 1.2在特殊情况下，本国际标准要求的变更或增补可能构成 查询和命令时的协议主题（见附件C）。 1.3除本国际标准的要求外，一般技术交付要求 ISO 404适用，除非下文另有说明。

1.1 This part of ISO 9327 covers the technical delivery conditions for forgings (see note 1) and for rolled or forged bars for pressure purposes manufactured from the following internationally used steels (see note 2): a) non-alloy and alloy ferritic or martensitic steels with specified room temperature properties and supplementary requirements for elevated temperature properties covered in ISO 9327-2; b) nickel steels with specified low temperature properties covered in ISO 9327-3; c) weldable fine grain steels with high proof strength (room temperature, elevated temperature and low temperature grades) covered in ISO 9327-4; d) austenitic and austenitic-ferritic steels (room temperature and elevated temperature grades) covered in ISO 9327-5. NOTE 1 In accordance with ISO 6929 the term forgings covers here open die forgings including ring rolled products as well as closed die forgings. NOTE 2 Additional to the internationally used steels for pressure purposes covered in parts 2 to 5 of ISO 9327, there are other steels used regionally or nationally for the same application. These other steels shall not be precluded by this International Standard provided that they comply with the relevant International or National Standards for vessel constructions. NOTE 3 The following International Standards also apply for steel products for pressure purposes: ISO 9328 parts 1 to 5, ISO 9329 parts1 to 4, ISO 9330 parts 1 to 6, ISO 4978. 1.2 In special cases variations of the requirements of this International Standard or additions to them may form the subject of an agreement at the time of enquiry and order (see annex C). 1.3 In addition to the requirements of this International Standard the general technical delivery requirements in ISO 404 apply, unless otherwise indicated in the following.