JB/T 4703-2000
Welding neck flange (English Version)
- Standard No.
- JB/T 4703-2000
- Language
- Chinese, Available in English version
- Release Date
- 2000
- Published By
- Professional Standard - Machinery
- Status
- 2013-03
- Replace By
- NB/T 47023-2012
- Latest
- NB/T 47023-2012
- Scope
- This standard specifies the structural type and series dimensions of long-neck butt welding flanges for steel pressure vessels. This standard is applicable to long-neck butt welding flanges of steel pressure vessels with nominal pressures of 0.6MPa to 6.40MPa and operating temperatures above -70 to 450°C. This standard applies to corrosion allowance ≤3mm.
JB/T 4703-2000 history
- 2012 NB/T 47023-2012 Welding neck flange
- 2000 JB/T 4703-2000 Welding neck flange
JB/T 4703-2000 Welding neck flange was changed to NB/T 47023-2012 Welding neck flange.
