ASME B16.11 socket weld cap is to close the ends of tubes pipes that insert the pipe in weld together. There are various size, dimensions, weight material. It is widely used at construction, engineering fabrication work.  In contrast to butt weld fittings,socket weld fittings are mainly used for small pipe diameters  generally for piping whose nominal diameter is NPS 2 smaller.

Socket Weld Fittings are a family of high pressure forging fittings that used only in conjunction with ANSI Pipe are available in the same size range.

Even though there are some similarities between the shapes of the two welds, but socket weld is still considered to be different a fillet weld.

ASME B16.11 Socket Weld Cap Size

Socket Weld Cap Material

Carbon Steel Material Grades

ASTM A105 / A105N, A350 LF2/LF3, A694 F42 / F46 / F56 / F60 / F65

Alloy Steel Material Grades

ASTM A182 F5 / F9 / F11 / F12 / F22 / F91 / F92

Stainless Steel Material Grades

ASTM A182 F304/304L/304H, F316/316L, F321, F310S, F317, F347, F904L

Duplex Stainless Steel Material Grades

ASTM A182 F51 / F53 / F44 / F55

ASME B16.11 Socket Weld Pipe Cap Dimension

1) The even thickness around the socket bore shall be less than the average value, the thickness at partial areas can be the min one.

2) Considering the tolerance of outside diameter of pipe, the diameters of some socket bore can be a little larger than the ones specified in B16.11.

3) When the sizes of the connecting pipes are conformed to the ones specified in this catalog, the sizes of the connecting pipes shall be provided in the purchase specification.

4) When the fittings are reducing,the structure sizes shall be same as the ones of the straight fittings B J D shall be machined per the according reducing ends.

5) Fittings can also be manufactured as the mixed connectings of SW THRD.

Socket Weld Cap Weight Chart in KG