ISO 9327-1:1999
Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 1: General requirements

Standard No.

ISO 9327-1:1999

Release Date

1999

Published By

International Organization for Standardization (ISO)

Latest

ISO 9327-1:1999

Scope

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. 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). 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.

ISO 9327-1:1999 Referenced Document

• ISO 10474:1991 Steel and steel products; inspection documents
• ISO 3651-1:1998 Determination of resistance to intergranular corrosion of stainless steels - Part 1: Austenitic and ferritic-austenitic (duplex) stainless steels - Corrosion test in nitric acid medium by measurement of loss in mass (Huey test)
• ISO 3651-2:1998 Determination of resistance to intergranular corrosion of stainless steels - Part 2: Ferritic, austenitic and ferritic-austenitic (duplex) stainless steels - Corrosion test in media containing sulfuric acid
• ISO 404:1992 Steel and steel products; general technical delivery requirements
• ISO 4948-1:1982 Steels; Classification; Part 1 : Classification of steels into unalloyed and alloy steels based on chemical composition
• ISO 683-13:1986 Heat-treated steels, alloy steels and free-cutting steels — Part 13: Wrought stainless steels
• ISO 6929:1987 Steel products; Definitions and classification Bilingual edition
• ISO 9327-2 Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 2: Non-alloy and alloy (Mo, Cr and CrMo) steels with specified elevated temperature properties*， 1999-06-01 Update
• ISO 9327-3 Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 3: Nickel steels with specified low temperature properties*， 1999-06-01 Update
• ISO 9327-4 Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 4: Weldable fine grain steels with high proof strength*， 1999-06-01 Update
• ISO 9327-5 Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 5: Stainless steels*， 1999-06-01 Update
• ISO/TR 15461:1997 Steel forgings - Testing frequency, sampling conditions and test methods for mechanical tests
• ISO/TR 9769:1991 Steel and iron; review of available methods of analysis

ISO 9327-1:1999 history

• 1999 ISO 9327-1:1999 Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 1: General requirements