Stainless Steel A182 Pipe Fittings
ASTM A182 is standard for Forged Steel Pipe Fittings and Flanges which contains Stainless Steel and Alloy Steel. Forged Steel Pipe Fittings Elbow are divided into Socket Weld Elbow and Threaded Elbow.
The specification of ASTM A182 Stainless Steel Forged Pipe Fittings includes forged fittings, stainless steel, rolled alloy, forged alloy, pipe flanges as well as high-temperature service. There are various grade: ASTM A182 F304/304L/304H, 316/316L, 321, 310S, 317, 347, 904L，1.4404, 1.4437.
Later then forgings and hot working, it would be cooled down to a certain temperature before heat treatment.
Socket Weld Fittings
A Socket Weld Fittings is a pipe attachment detail in which a pipe is inserted into a recessed area of a Valve, fitting or flange. Once correctly inserted, fillet type sealing welds are applied to join the pipe to the fitting.
Different from buttweld fittings, Socket Weld fittings are mainly used for small pipe diameters (Small Bore Piping);
Socket welds can be used to change the direction of travel for pipe networks as well as join pipes at different angles and of different diameters.
| Socket Weld Fittings Specification | |
| Shape | Elbow, Tee, Cross, Coupling, Union, Cap, Reducing Insert, Sockolet |
| Size Range | 1/8″ – 4″ / DN6 – DN100 |
| Pressure Rating | Class 3000lbs, 6000lbs, 9000lbs |
| Standard | ASME B16.11, BS3799, EN 10241, MSS SP-83, MSS SP-97 |
| Carbon Steel | ASTM A105 / A105N, ASTM A350 LF2/LF3, ASTM A694 F42 / 46 / 56 / 60 / 65, P235GH, P265GH, P280GH, P355GH |
| Alloy Steel | ASTM A182 F11 / 12 / 5 / 9 / 91 / 92 / 22 |
| Stainless Steel | ASTM A182 F304/304L/304H, 316/316L, 321, 310S, 317, 347, 904L，1.4404, 1.4437. |
| Duplex Stainless Steel | ASTM A182 F51, F53, F44 |
Steel Pipe Fittings Elbow
The function of elbow is to change direction or flow in a piping system. There are the 45°, 90° and 180° elbows
Elbow is a pipe fitting that changes the direction of piping. According to the Angle, there are 45° and 90°180° three most commonly used. Elbow material can be divided into carbon steel, alloy steel and stainless-steel.
According to the production method, it can be divided into pushing, pressing, forging, casting, etc.
According to its radius of curvature, there are long radius elbow and short radius elbow. Long radius elbow refers to its radius of curvature is equal to 1.5 times the outside diameter of the pipe, that is, R=1.5D; A short radius elbow means that its radius of curvature is equal to the outer diameter of the pipe, that is, R= 1.0d.(D is the diameter of the elbow, and R is the radius of curvature).
