Know More about Rolled Pipe, Root Edge, Root Face, etc.

Show that you are care to your family, and that's what I've done last night. I have to taken care a few problems in my family, start from my daughter and the others, and I feel so free now because the problems step by step will solved, I hope. And now continue with the Pipe and Fabrication, now we will know more about Rolled Pipe, Root Edge, Root Face, etc.

Rolled Pipe.

rolled pipe

Pipe produced from a forged billet which is pierced by a conical mandrel between two diametrically opposed rolls. The pierced shell is subsequently rolled and expanded over mandrels of increasingly large diameter. Where closer dimensional tolerances are desired, the rolled pipe is cold- or hot-drawn through dies and then machined. One variation of this process produces the hollow shell by extrusion of the forged billet over amandrel in a vertical, hydraulic piercing press.

Root Edge.
A root face of zero width.

Root Face.

nomenclature root face

That portion of the groove face adjacent to the root of the joint.
This portion is also referred to as the root land.

Root of Joint.
That portion of a joint to be welded where the members to be joined come closest to each other. In cross section, the root of a joint may be a point, a line, or an area.

Root Opening.

root opening

The separation, between the members to be joined, at the root of the joint.

Root Penetration.

root penetration

The depth which a groove weld extends into the root of a joint as measured on the centerline of the root cross section. Sometimes welds are considered unacceptable if they show incomplete penetration.

Root Reinforcement.
Weld reinforcement at the side other than that from which the welding was done.

Root Surface.
The exposed surface of a weld on the side other than that from which the welding was done.

Run.
The portion of a fitting having its end in line, or nearly so, as distinguished from branch connections, side outlets, etc.