This Part of GB/T 18442 specifies the technical requirements for material, design, manufacture and inspection of the inner vessels of static vacuum insulated cryogenic pressure vessels (hereinafter referred to as the inner vessels) that are manufactured by pressure strengthening technology. This Part is applicable the inner vessels that meet the following conditions at the same time. a) in accordance with the provisions of 1.2 of GB/T 18442.1, the medium is frozen liquefied gas; b) the material is austenitic stainless steel; c) the nominal thickness is not less than 4mm and not more than 24mm, consisting of a single diameter cylinder and a standard oval head; d) the strain strengthening is completed at room temperature. This Part is not applicable to the inner vessels that contain mediums of which the toxicity hazard is moderate and above.
Basic Data
Standard ID
GB/T 18442.7-2017 (GB/T18442.7-2017)
Description (Translated English)
Static vacuum insulated cryogenic pressure vessels - Part 7: Rules of pressure strengthening for inner vessels
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
A82
Classification of International Standard
23.020.40
Word Count Estimation
23,279
Date of Issue
2017-11-01
Date of Implementation
2018-05-01
Regulation (derived from)
National Standard Announcement 2017 No. 29
Issuing agency(ies)
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
