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Introduction of Stainless Steel Socket Weld Coupling
Couplings are a kind of forged fittings used to connect small size bored pipes providing a connection between two ends of the pipes in different types including threaded and socket weld. Socket weld (SW), a connection type that a pipe or fittings are inserted into a pipe is inserted into a sunken area at the end of another pipes or fittings.
Metal material of socket weld couplings can also divided into several different types, such as carbon steel carbon steel socket weld couplings, alloy steel carbon steel socket weld couplings, pipeline steel socket weld couplings and stainless steel socket weld couplings.
Manufacturing Standard of Stainless Steel Socket Weld Couplings
All different kinds of couplings, including stainless steel socket weld couplings should follow the manufacturing standard ASME B16.11. In 1992, American government compiled ASME series standard basing on the need and requirement from industry. ASME B16.11 standards includes ratings, dimensions, tolerances, markings and material requests for all socket weld and threaded fittings.
Specification of ASME B16.11 Socket Weld Couplings
| Type | Elbow, Tee, Cross, Coupling, Cap, Lateral |
| Shape | Straight and Reducing Fittings |
| Size Range | 1/8" - 4" / DN6 - DN100 |
| Pressure Rating | Class 3000lbs, 6000lbs, 9000lbs |
| Carbon Steel | ASTM A105 / A105N, A350 LF2/LF3, ASTM A694 F42 / F46 / F56 / F60 / F65 |
| Alloy Steel | ASTM A182 F5 / F9 / F11 / F12 / F22 / F91 / F92 |
| Stainless Steel | ASTM A182 F304/304L/304H, F316/316L, F321, F310S, F317, F347, F904L |
| Duplex Stainless Steel | ASTM A182 F51, F53, F44 |
Weight Chart of B16.11 Socket Weld Couplings
| DN | NPS | 3000 | 6000 | 9000 |
| 6 | 1/8 | 0.05 | 0.06 | - |
| 8 | 1/4 | 0.06 | 0.07 | - |
| 10 | 3/8 | 0.08 | 0.10 | - |
| 15 | 1/2 | 0.13 | 0.16 | 0.29 |
| 20 | 3/4 | 0.20 | 0.28 | 0.47 |
| 25 | 1 | 0.28 | 0.48 | 0.68 |
| 32 | 1-1/4 | 0.48 | 0.65 | 1.08 |
| 40 | 1-1/2 | 0.52 | 0.94 | 1.12 |
| 50 | 2 | 0.95 | 1.65 | 1.95 |
| 65 | 2-1/2 | 1.52 | - | - |
| 80 | 3 | 1.75 | - | - |
| 100 | 4 | 2.8 | - | - |
Common Materials of Stainless Steel Socket Weld Couplings
A182 is the generic terms of alloy steel and stainless steel material used in forged fittings. There are so many different grades under A182 type. During them, A182 F304/304L/304H, F316/316L, F321, F310S, F317, F347, F904L are the most commonly sued stainless steel in forged fitting and flanges, of course include stainless steel socket weld couplings.
How Many Types of Socket Weld Coupling
Straight Coupling
Reducing Coupling
Socket Weld Full Coupling
Socket Weld Half Coupling
Carbon Steel Socket Weld Coupling
Stainless Steel Socket Weld Coupling
Introduction of Stainless Steel Socket Weld Coupling
Couplings are a kind of forged fittings used to connect small size bored pipes providing a connection between two ends of the pipes in different types including threaded and socket weld. Socket weld (SW), a connection type that a pipe or fittings are inserted into a pipe is inserted into a sunken area at the end of another pipes or fittings.
Metal material of socket weld couplings can also divided into several different types, such as carbon steel carbon steel socket weld couplings, alloy steel carbon steel socket weld couplings, pipeline steel socket weld couplings and stainless steel socket weld couplings.
Manufacturing Standard of Stainless Steel Socket Weld Couplings
All different kinds of couplings, including stainless steel socket weld couplings should follow the manufacturing standard ASME B16.11. In 1992, American government compiled ASME series standard basing on the need and requirement from industry. ASME B16.11 standards includes ratings, dimensions, tolerances, markings and material requests for all socket weld and threaded fittings.
Specification of ASME B16.11 Socket Weld Couplings
| Type | Elbow, Tee, Cross, Coupling, Cap, Lateral |
| Shape | Straight and Reducing Fittings |
| Size Range | 1/8" - 4" / DN6 - DN100 |
| Pressure Rating | Class 3000lbs, 6000lbs, 9000lbs |
| Carbon Steel | ASTM A105 / A105N, A350 LF2/LF3, ASTM A694 F42 / F46 / F56 / F60 / F65 |
| Alloy Steel | ASTM A182 F5 / F9 / F11 / F12 / F22 / F91 / F92 |
| Stainless Steel | ASTM A182 F304/304L/304H, F316/316L, F321, F310S, F317, F347, F904L |
| Duplex Stainless Steel | ASTM A182 F51, F53, F44 |
Weight Chart of B16.11 Socket Weld Couplings
| DN | NPS | 3000 | 6000 | 9000 |
| 6 | 1/8 | 0.05 | 0.06 | - |
| 8 | 1/4 | 0.06 | 0.07 | - |
| 10 | 3/8 | 0.08 | 0.10 | - |
| 15 | 1/2 | 0.13 | 0.16 | 0.29 |
| 20 | 3/4 | 0.20 | 0.28 | 0.47 |
| 25 | 1 | 0.28 | 0.48 | 0.68 |
| 32 | 1-1/4 | 0.48 | 0.65 | 1.08 |
| 40 | 1-1/2 | 0.52 | 0.94 | 1.12 |
| 50 | 2 | 0.95 | 1.65 | 1.95 |
| 65 | 2-1/2 | 1.52 | - | - |
| 80 | 3 | 1.75 | - | - |
| 100 | 4 | 2.8 | - | - |
Common Materials of Stainless Steel Socket Weld Couplings
A182 is the generic terms of alloy steel and stainless steel material used in forged fittings. There are so many different grades under A182 type. During them, A182 F304/304L/304H, F316/316L, F321, F310S, F317, F347, F904L are the most commonly sued stainless steel in forged fitting and flanges, of course include stainless steel socket weld couplings.
How Many Types of Socket Weld Coupling
Straight Coupling
Reducing Coupling
Socket Weld Full Coupling
Socket Weld Half Coupling
Carbon Steel Socket Weld Coupling
Stainless Steel Socket Weld Coupling
