GB/T 9124.2-2019
Steel pipe flanges—Part 2: Class designated (English Version)
- Standard No.
- GB/T 9124.2-2019
- Language
- Chinese, Available in English version
- Release Date
- 2019
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 9124.2-2019
- Replace
- GB/T 9112-2010 GB/T 9113-2010 GB/T 9114-2010 GB/T 9115- GB/T 9115-2010 GB/T 9116-2010 GB/T 9117-2010 GB/T 9118-2010 GB/T 9119-2010 GB/T 9120-2010 GB/T 9121-2010 GB/T 9122-2010 GB/T 9123-2010 GB/T 9124-2010
- Scope
- This part of GB/T9124 specifies the types and parameters, types and specifications, technical requirements, tests, inspection and acceptance, signs and marks, and supply requirements of Class series steel pipe flanges and flange covers. This part applies to steel pipe flanges and flange covers with nominal pressure Class 150-Class 2500 and nominal size DN15-DN600 (CNPS bar-NPS24).
GB/T 9124.2-2019 Referenced Document
- GB 3531 Steel plates for low temperature pressure vessels
- GB 713 Steel plates for boilers and pressure vessels
- GB/T 1047 Pipework components—Definition and selection of nominal size
- GB/T 1048 Pipework components—Definition and selection of nominal pressure
- GB/T 12228 General purpose industrial valves.Specification of carbon steel forgings
- GB/T 12229 General Purpose industrial valves.Specification of carbon steel castings
- GB/T 12230 Specifications for stainless steel castings for general valves*， 2023-05-23 Update
- GB/T 152.4 Fasteners--Counterbores for hexagon bolts and nuts
- GB/T 16253 Steel castings for pressure purposes*， 2019-08-30 Update
- GB/T 1804 General tolerances Tolerances for linear and angular dimensions without individual tolerance indications
- GB/T 3274 Hot-rolled plates、sheets and strips of carbon structural steels and high strength low alloy structural steels
- GB/T 4237 Hot rolled stainless steel plate,sheet and strip
- GB/T 700 Carbon structural steels
- GB/T 711 Hot-rolled quality carbon structural steel plates sheets and strips
- GB/T 9125 Fasteners for pipe flange joints
- JB 4743 Nickel-copper alloy forgings for pressure vessels
- JB/T 5263 Specification for steel casting for power station valves
- JB/T 9625 Specification for pressure retaining casting of boiler pipe fittings
- NB/T 47008 Carbon steel and alloy steel forgings for pressure equipment
- NB/T 47009 Alloy steel forgings for low temperature pressure equipment
- NB/T 47010 Stainless steel and heat-resistant steel forgings for pressure equipment
GB/T 9124.2-2019 history
- 2019 GB/T 9124.1-2019 Steel pipe flanges—Part 1：PN designated
- 2011 GB/T 9115-2010 Steel pipe welding neck flanges
- 2005 GB/T 2506-2005 Marine steel pipe flanges of fillet weld-on
- 2000 GB/T 9124-2000 Specification for steel pipe flanges
- 1989 GB/T 2508-1989 Marine combination pipe flanges,slip-on steel outer flanges,fillet weld-on steel inner flanges
GB/T 9124.2-2019 has been changed from GB/T 9112-2010 Types and parameters for steel pipe flanges.
GB/T 9124.2-2019 has been changed from GB/T 9113-2010 Integral steel pipe flanges.
GB/T 9124.2-2019 has been changed from GB/T 9114-2010 Hubbed screwed steel pipe flanges.
GB/T 9124.2-2019 has been changed from GB/T 9115-2010 Steel pipe welding neck flanges.
GB/T 9124.2-2019 has been changed from GB/T 9116-2010 Hubbed slip-on-welding steel pipe flanges.
GB/T 9124.2-2019 has been changed from GB/T 9117-2010 Hubbed socket welding steel pipe flanges.
GB/T 9124.2-2019 has been changed from GB/T 9118-2010 Loose hubbed steel pipe flanges with welding neck collor.
GB/T 9124.2-2019 has been changed from GB/T 9119-2010 Slip-on-welding plate steel pipe flanges.
GB/T 9124.2-2019 has been changed from GB/T 9120-2010 Loose plate steel pipe flanges with weld-neck collar and with weld ring neck.
GB/T 9124.2-2019 has been changed from GB/T 9121-2010 Loose plate steel pipe flanges with weld-on collar.
GB/T 9124.2-2019 has been changed from GB/T 9122-2010 Loose plate steel pipe flanges with lapped pipe end and pressed collar with long neck.
GB/T 9124.2-2019 has been changed from GB/T 9123-2010 Steel pipe blank flanges.
GB/T 9124.2-2019 has been changed from GB/T 9113-2010 Integral steel pipe flanges.
GB/T 9124.2-2019 has been changed from GB/T 9114-2010 Hubbed screwed steel pipe flanges.