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Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications

This Standard Practice provides requirements for wrought and fabricated butt-welding fittings intended for low pressure, corrosion resistant applications. Requirements covered include pressure ratings, size, marking, materials, metal thickness, dimensions, testing, and tolerances.
This Standard Practice covers only fittings made for use with Schedule 5S or 10S pipe, for all Nominal Pipe Sizes (NPS) listed in ASME B36.19M, except that short pattern stub ends suitable for use with Schedule 40S are also shown.


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October 27, 2021

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