SY/T 5991-1994
Thread protectors for casing, tubing and delivery steel pipes (English Version)
- Standard No.
- SY/T 5991-1994
- Language
- Chinese, Available in English version
- Release Date
- 1995
- Published By
- Professional Standard - Petroleum
- Status
- 2010-12
- Replace By
- SY/T 5991-2010
- Latest
- SY/T 5991-2016
- Scope
- This standard specifies the classification, technical requirements, test methods, inspection rules, markings, packaging, etc. of external thread and coupling internal thread protectors for casings, oil pipes, and transportation steel pipes. This standard is applicable to the protectors for the external threads of casing, oil pipes and transportation steel pipes and the internal threads of couplings. It is also applicable to the protectors for the external threads of other steel pipes and the internal threads of couplings with similar requirements.
SY/T 5991-1994 history
- 2016 SY/T 5991-2016 Casing, tubing, line pipe and drill pipe thread protectors
- 2010 SY/T 5991-2010 Thread protectors for casing,tubing,line pipe and drill pipe
- 1995 SY/T 5991-1994 Thread protectors for casing, tubing and delivery steel pipes
