GB/T 5777-1996
Seamless steel pipe and tubing--Methods for ultrasonic testing (English Version)
- Standard No.
- GB/T 5777-1996
- Language
- Chinese, Available in English version
- Release Date
- 1996
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2009-04
- Replace By
- GB/T 5777-2008
- Latest
- GB/T 5777-2019
- Scope
- This standard specifies the principles, methods, comparative samples, equipment, conditions, procedures, result evaluation and report of ultrasonic flaw detection of seamless steel pipes. This standard applies to ultrasonic testing of longitudinal and transverse defects of seamless steel pipes for various purposes. The flaw detection methods described in this standard are mainly used to detect defects that destroy the metal continuity of steel pipes, but cannot effectively detect layered defects. This standard applies to steel pipes with an outer diameter equal to or greater than 6 mm and a ratio of wall thickness to outer diameter not greater than 0.2. The inspection of steel pipes with a ratio of wall thickness to outer diameter greater than 0.2 requires a special method agreed upon by both the supplier and the purchaser according to Appendix A of this standard.
GB/T 5777-1996 history
- 2019 GB/T 5777-2019 Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections
- 2009 GB/T 5777-2008 Ultrasonic testing method for seamless steel pipe
- 1996 GB/T 5777-1996 Seamless steel pipe and tubing--Methods for ultrasonic testing
