Active standard | Published: 20/04/2026

ASME B16.47:2025

Large Diameter Steel Flanges: NPS 26 through NPS 60 Metric/Inch Standard

Available languages: English

Available design: electronic (protected pdf), Print design

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Detail information

Designation: ASME B16.47:2025

Publication date: 20/04/2026

Pages: 142

Country: American technical standard

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Anotation

This standard covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for pipe flanges in sizes NPS 26 through NPS 60. Included are flanges with rating class designations 75, 150, 300, 400, 600, and 900 with requirements given in both SI (Metric) and U. S. Customary units, with diameter of bolts and flange bolt hole expressed in inch units. This standard is limited to flanges made from cast or forged materials and blind flanges made from cast, forged, or plate materials. See more

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