GB/T 9124-2010 Specification for steel pipe flanges (Text of Document is in English) - Beijing translation compay

Foreword
1 Scope
2 Normative Reference
3 Materials
4 Pressure – temperature rated values
5 Dimensions and tolerance
5.1 Dimensions
5.2 Dimensional tolerance
6 Joint sealing face
7 Fasteners and gaskets
7.1 Fasteners
7.2 Gasket
8 Type and dimensions of welded end
9 Machining and Manufacturing
10 Test
11.1 Inspection
11.2 Acceptance
12 Labeling
13 Requirements of supply
Annex A (Normative) Types and dimensions of welded end
Annex B (Normative) Press-temperature rated value of Class designated flange
Annex C (Informative) Reference mass
Annex D (Informative) Data under the contract of goods order
Annex E (Informative) Pipe schedule number and wall thickness of steel pipes
Annex F (Informative) Reference dimensions of some flanges with PN designation other than the scope of this standard
Annex G (Informative) Material selection of ASME B16.5 standard steel pipe flange and pressure-temperature rated value