ASME ANSI B16.9 Factory-Made Wrought Butt Welding Fittings

Material of ASME ANSI B16.9 factory-made wrought butt welding fittings

Wrought fittings covered by this standard shall be complied with ASTM A234, A420, A815, B361, B363, B366. The term wrought denotes fittings made of pipe, tubing, plate, or forgings. Fittings made from block forgings may only be supplied subject to agreement between manufacturer and purchaser. Standard fitting was manufactured in conformance with this standard, including all dimensional requirements, is certified by a prefix "WP" in the material grade designation marking. Special fitting was manufactured in conformance with this standard except that dimensional requirements are as agreed between the purchaser and manufacturer, is certified by a supplementary suffix to the material grade designation marking. S9 applies for fittings in accordance with ASTM A234 and A403. S6 applies for fittings according to ASTM A420. S8 applies for fittings as per ASTM A815. SPLD applies for fittings in accordance with ASTM B 361, B363, and B366. Where adjacent openings in fittings are mot in parallel planes, they shall be jointed by a circular arc on the external surfaces. The arc may be terminated in tangents.

Each fitting shall be permanently marked to show the following

A. Manufacturer's name or trademark.

B. Material identification, either the ASTM or ASME grade designation.

C. Schedule number or nominal wall thickness in mm.

D. Size. The nominal pipe size(NPS) identification number related to the end connections shall be used.

E. A manufacturer may supplement these mandatory markings with others, including a DN size designation, but confusion with the required marking shall be avoided.

Depth of stamping of ASME ANSI B16.9 factory-made wrought butt welding fittings

Where steel stamps are used, care shall be taken so that the marking is not deep enough or sharp enough to cause cracks or to reduce the wall thickness of the fitting below the minimum allowed.

Product shows of ASME ANSI B16.9 factory-made wrought butt welding fittings

Pipe fitting in our company includes long radius elbows, long radius-reducing elbows, long radius returns, short radius elbows, short radius 180 deg returns, straight tees and crosses, reducing outlet tees and reducing outlet crosses, lap joint stub ends, pipe caps, steel reducers.

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