Piping Related Abbreviations (S)

SCH is an abbreviation of SCHedule, and in piping terms this indicates the wall thickness of a pipe.

SMAW is an abbreviation of Shielded Metal Arc Welding.
Shielded Metal Arc Welding (Electrode) is a high quality, very high deposition rate welding process.

SMLS is an abbreviation of Seamless pipe or fitting.

SMYS is an abbreviation of Specified Minimum Yield Strength .
for steel pipes manufactured in accordance with a stated specification. This is a commonly used term in the oil and gas industry for steel pipes under the jurisdiction of the US Department of Transportation.

SOL is an abbreviation of SockOLet
Sockolet® is a registered name by Bonney Forge Corporation.

SR is an abbreviation of Short Radius Elbow.
Elbows are split into two groups which define the distance over which they change direction; the center line of one end to the opposite face. This is known as the "center to face" distance and is equivalent to the radius through which the elbow is bent. The center to face distance for a Short Radius elbow is even to nominal pipe size, while the center to face distance for a Long Radius elbow abbreviated LR always is 1.1/2 x Nominal Pipe Size (1.1/2D).

SST is an abbreviation of Stainless STeel.
Stainless is a term coined early in the development of these steels for cutlery applications. It was adopted as a generic name for these steels and now covers a wide range of steel types and grades for corrosion or oxidation resistant applications.
Stainless steel contains a maximum of 1.2% carbon, a minimum of 10.5% chromium and other alloying elements. The presence of chromium confers on stainless steel its principal quality.. its corrosion resistance.
The alloying elements, depending on their percentages, give stainless steels their physical, chemical and mechanical properties. The presence of alloying elements is the starting point for obtaining the desired properties, various production processes facilitating this. The carbon and iron steel base, together with the addition of various alloying elements, provide the balance of each grade and dertermine which stainless "family" it belongs.
The most frequently used alloying elements are.. nickel, molybdenum, titanium, niobium, manganese, nitrogen, copper, silicon, aluminium and vanadium.

SW is an abbreviation of Socket Weld(ing).
A Socket Weld is a pipe attachment detail in which a pipe is inserted into a recessed area of a valve, fitting or flange. Socket Weld fittings are mainly used for small pipe diameters (Small Bore Piping); generally for piping whose nominal diameter is NPS 2 or smaller. To join pipe to valves and fittings or to other sections of pipe, fillet-type seal welds be used.