SH 3520-1991
Technical specification for welding of chrome-molybdenum heat-resistant steel pipes in petrochemical engineering (English Version)
- Standard No.
- SH 3520-1991
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Petrochemical Industry
- Status
- 2005-04
- Replace By
- SH/T 3520-2004
- Latest
- SH/T 3520-2015
SH 3520-1991 history
- 2015 SH/T 3520-2015 Welding specification of chrome molybdenum steel in petrochemical industry
- 2004 SH/T 3520-2004 Welding specification of chrome molybdenum steel for petrochemical engineering
- 1970 SH 3520-1991 Technical specification for welding of chrome-molybdenum heat-resistant steel pipes in petrochemical engineering
