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ASTM A350 Gr. Lf2 Blind Flange
Source :admin   Time:5/18/2017 9:17:45 PM   hit:

  ASTM A350 Gr. Lf2 Blind Flange

        ASTM A350 Gr. Lf2 Blind Flange are also named heavy WN flanges, which are hot formed from a circular section of steel plate having a very small co-axial hole in the flange center. The steel around the hole is shear-formed downward and outward by a tapered die plug which is forced by the small hole forming an integral neck on the weld neck flange. A supporting ring die is radiused at its inner corner to form a suitable fillet radius at the junction of the neck with the flange proper. A suitable pre-forming or post-forming operation may be required to compensate for any deflection in the work piece out of planar configuration.

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