GB/T 13402-2010 in English

《GB/T 13402-2010大直径钢制管法兰》由TC237（全国管路附件标准化技术委员会）归口，主管部门为中国机械工业联合会。

1 Scope
This Standard specifies the types, dimensions and requirements, materials, pressure-temperature ratings, dimension tolerances, testing, inspection and acceptance, supply requirements, and designation and marking of the large diameter steel pipe flanges.
This standard is applicable to the large diameter steel pipe flanges and blind flanges with the nominal pressure range of Class 75 to Class 900 and the nominal size range of NPS 26 to NPS 60.

2 Normative References

The following standards contain provisions which, through reference in this text, constitute provisions of this Standard. For dated reference, subsequent amendments to (excluding corrigendum), or revisions of, any of these publications do not apply. However, the parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.

Contents
Foreword I
1 Scope
2 Normative References
3 Types, Dimensions and Requirements
4 Materials
5 Pressure-Temperature Ratings
6 Dimension Tolerances
7 Testing
8 Inspection and Acceptance
9 Supply Requirements
10 Designation and Marking
Appendix A (Normative) Pressure-Temperature Limit Ratings for Flanges
Appendix B (Informative) Reference Mass of Flanges
Appendix C (Informative) Order Contract Data of Flanges
Appendix D (Informative) Material Selection and Pressure-Temperature Ratings of Steel Pipe Flanges Given in ASME B16.47