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In Stock Wn 300 4 Plate Dimensions 20-Blind With Fasteners 20 Inch Blind Flange
,ANSI B16.5 A105 Weld Neck Flange,A105N Weld neck flange,A105 weld neck flange,A105 Bind flange,A105 Slip on Flanges
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Heat treatment is not a mandatory requirement except for flanges above Class 300, flanges of special design where the design pressure or design temperature are not known and for items over 4¡± NPS and above Class 300. When heat treatment is required, annealing, normalizing, normalize and temper, normalize and quench and tempering shall be the applied methods.
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