压力用途的钢锻件和轧制或锻造的棒材 交货技术条件 第1部分:一般要求

[中文适用范围]： ISO 9327 的本部分涵盖了锻件（见注 1）和由以下国际使用钢制造的用于压力用途的轧制或锻造棒材（见注 2）的技术交货条件： a) 非合金和合金铁素体或马氏体具有指定室温性能和 ISO 9327-2 中涵盖的高温性能补充要求的钢； b) 具有 ISO 9327-3 规定的低温性能的镍钢； c) ISO 9327-4 中涵盖的具有高保证强度（室温、高温和低温等级）的可焊接细晶粒钢； d) ISO 9327-5 涵盖的奥氏体钢和奥氏体-铁素体钢（室温和高温等级）。 注 1：根据 ISO 6929，术语“锻件”涵盖开式模锻件，包括环轧产品以及闭式模锻件。 注 2：除了 ISO 9327 第 2 至 5 部分中涵盖的国际上用于压力用途的钢之外，还有其他地区或国家用于相同应用的钢。 这些其他钢材不应被本国际标准排除，只要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。 2 在特殊情况下，本国际标准的要求有所变化或对它们的补充可以构成询价和订购时协议的主题（见附件 C）。 3 除本国际标准的要求外，ISO 404 中的一般技术交付要求也适用，除非下文另有说明。 [外文原描述]： 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.