This Part of GB/T 21833 specifies the order content, dimensions, shapes, masses, technical requirements, test methods, inspection rules, packing, marking, and quality certification of seamless austenitic-ferritic (duplex) stainless steel tubes and pipes for heat exchanger. This Part applies to seamless austenitic-ferritic (duplex) stainless steel tubes and pipes for heat exchanger (hereinafter referred to as steel tubes).
Basic Data
Standard ID
GB/T 21833.1-2020 (GB/T21833.1-2020)
Description (Translated English)
Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes - Part 1: Tubes for heat exchanger
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
H48
Classification of International Standard
77.140.75
Word Count Estimation
14,171
Date of Issue
2020-04-28
Date of Implementation
2020-11-01
Issuing agency(ies)
State Administration for Market Regulation, China National Standardization Administration
