1 Scope
This standard specifies the structural type and dimension series of B-type socket-weld flange for steel pressure vessels.
This standard is applicable to B-type socket-weld flange for steel pressure vessels with nominal pressure between 0.25~4.0MPa and working temperature beyond -20~350℃.
This standard also applies where the corrosion allowance is less than or equal to 2mm. Where the corrosion allowance reaches 3mm, the joint shall be thickened by 2mm.
2 Normative References
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies. For undated references, the latest edition (including all the amendments) of the normative document applies.
Foreword I
1 Scope 1
2 Normative References 1
3 Structural Type and Dimension 1
4 Selection Requirements 1
