JB/T 4702-2000
B-type socket-weld flange (English Version)
- Standard No.
- JB/T 4702-2000
- Language
- Chinese, Available in English version
- Release Date
- 2000
- Published By
- Professional Standard - Machinery
- Status
- 2013-03
- Replace By
- NB/T 47022-2012
- Latest
- NB/T 47022-2012
- Scope
- This standard specifies the structural type and series dimensions of type B flat welding flanges for steel pressure vessels. This standard is applicable to type B flat welding flanges of steel pressure vessels with nominal pressures from 0.25MPa to 4.0MPa and operating temperatures above -20 to 350°C. This standard applies to corrosion allowance ≤ 2mm. When the corrosion margin is 3mm, the thickness of the nipple should be increased by 2mm.
JB/T 4702-2000 history
- 2012 NB/T 47022-2012 B-type socket-weld flange
- 2000 JB/T 4702-2000 B-type socket-weld flange
JB/T 4702-2000 B-type socket-weld flange was changed to NB/T 47022-2012 B-type socket-weld flange.
