This Document specifies the classification, designations, ordering contents, manufacturing processes, technical requirements, inspection rules, packaging, marking, and quality certificate of screw-thread steel bars for the prestressing of concrete (hereinafter referred to as steel bars); and describes the corresponding test methods. This Document applies to finishing rolling screw-thread steel bars for prestressing concrete (hereinafter referred to as finishing rolling screw-thread steel bars for prestressing) produced using processes such as hot rolling, post-rolling residual heat treatment, or heat treatment; and to finishing rolling screw-thread steel bars for track panels produced using hot rolling processes.
Basic Data
Standard ID
GB/T 20065-2025 (GB/T20065-2025)
Description (Translated English)
Screw-thread steel bars for the prestressing of concrete
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
H44
Classification of International Standard
77.140.15
Word Count Estimation
17,162
Date of Issue
2025-08-29
Date of Implementation
2026-03-01
Older Standard (superseded by this standard)
GB/T 20065-2016, GB/T 33279-2017
Issuing agency(ies)
State Administration for Market Regulation; Standardization Administration of China
