This Part of GB/T 20801 specifies the basic requirements for the fabrication and assembly of pressure piping. These basic requirements include regulations on fabrication, welding, preheating, heat treatment, assembly, erection and piping cleaning, etc. This Part is applicable to the fabrication and assembly of pressure pipework components defined in the scope of GB/T 20801.1.
Basic Data
Standard ID
GB/T 20801.4-2020 (GB/T20801.4-2020)
Description (Translated English)
Pressure piping code - Industrial piping - Part 4: Fabrication and assembly
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
J74
Word Count Estimation
44,482
Date of Issue
2020-11-19
Date of Implementation
2021-06-01
Older Standard (superseded by this standard)
GB/T 20801.4-2006
Regulation (derived from)
National Standard Announcement No. 26 of 2020
Issuing agency(ies)
State Administration for Market Regulation, China National Standardization Administration
