High Pressure SS Fittings , Forged Stainless Steel Socket Weld Coupling SW
ASTM A403 WP304 ASME B16.11 Forged SW High Pressure Stainless Steel Socket-Welding Coupling
Product Information
A Forged Stainless Steel Socket Weld Coupling is a type of pipe fitting that connects two pipes of the same size in a socket welding system, typically made from forged stainless steel for durability and corrosion resistance.
| Product Name | ASTM A403 WP304 ASME B16.11 Forged SW High Pressure Stainless Steel Socket-Welding Coupling |
| Size Range | Dimension: 1/8” to 4” |
| Wall Thickness | SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120,SCH140, SCH160, XXS |
| Standards | ASTM A403 |
| Pressure Class | 3000 LBS, 6000 LBS, 9000 LBS |
| Dimensions | ASME B16.11 |
· Advantages:
Corrosion Resistance: Stainless steel construction offers excellent resistance to corrosion in various environments.
Strength: Provides a durable and reliable connection between pipes.
Leak Resistance: Ensures a tight seal to prevent leaks in the piping system.
Standards & Materials: ASTM A403
ASTM A403 Stainless Steel Pipe Fittings refers to the material of forged and rolled austenitic stainless fittings for pressure pipes. Common grades are WP304/L, WP316/L. They can be used into many fields as engineering industry, energy conversion plants etc.
ASTM A403 Chemical Compositions (%)
| Grade A | Composition (%) | |||||||||
| Grade WP | UNS Designation | C | Mn | P | S | Si | Ni | Cr | Mo | Ti |
| WP304 | S30400 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 8.0-11.0 | 18.0-22.0 | ﹍ | ﹍ |
| WP304L | S30403 | 0.030E | 2.00 | 0.045 | 0.030 | 1.00 | 8.0-12.0 | 18.0-22.0 | ﹍ | ﹍ |
| WP310S | S31008 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 19.0-22.0 | 24.0-26.0 | ﹍ | ﹍ |
| WP316 | S31600 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 10.0-14.0 | 16.0-18.0 | 2.00-3.00 | |
| WP316L | S31603 | 0.030E | 2.00 | 0.045 | 0.030 | 1.00 | 10.0-14.0 | 16.0-18.0 | 2.00-3.00 | ﹍ |
| Wp321 | S32100 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 9.0-12.0 | 17.0-19.0 | ﹍ | |
Note:
- Where a ellipsis(﹍)appears in the table, there is no requirement and the element need to be analyzed for or reported
- The method of analysis for nitrogen shall be a matter of agreement between the purchaser and manufacturer
Dimensions of ASME B16.11 Socket-Welding (SW) Coupling
The drawing of ASME B16.11forged coupling with two socket welding (SW) ends, B: socket bore diameter; C: socket wall thickness; D: bore diameter of SW coupling; J: socket depth; E: laying length of SW coupling.
| NPS | B max. |
B min. |
J min. |
E |
| 1/8" | 11.2 | 10.8 | 9.5 | 6.5 |
| 1/4" | 14.6 | 14.2 | 9.5 | 6.5 |
| 3/8" | 18.0 | 17.6 | 9.5 | 6.5 |
| 1/2" | 22.2 | 21.8 | 9.5 | 9.5 |
| 3/4" | 27.6 | 27.2 | 12.5 | 9.5 |
| 1" | 34.3 | 33.9 | 12.5 | 12.5 |
| 1-1/4" | 43.1 | 42.7 | 12.5 | 12.5 |
| 1-1/2" | 49.2 | 48.8 | 12.5 | 12.5 |
| 2" | 61.7 | 61.2 | 16.0 | 19.0 |
| 2-1/2" | 74.4 | 73.9 | 16.0 | 19.0 |
| 3" | 90.3 | 89.8 | 16.0 | 19.0 |
| 4" | 115.7 | 115.2 | 19.0 | 19.0 |
| NPS | 3000# | 6000# | 9000# | |||
| C max. | C min | C max. | C min | C max. | C min | |
| 1/8" | 3.18 | 3.18 | 3.96 | 3.43 | - | - |
| 1/4" | 3.78 | 3.30 | 4.60 | 4.01 | - | - |
| 3/8" | 4.01 | 3.50 | 5.03 | 4.37 | - | - |
| 1/2" | 4.67 | 4.09 | 5.97 | 5.18 | 9.35 | 8.18 |
| 3/4" | 4.90 | 4.27 | 6.96 | 6.04 | 9.78 | 8.56 |
| 1" | 5.69 | 4.98 | 7.92 | 6.93 | 11.38 | 9.96 |
| 1-1/4" | 6.07 | 5.28 | 7.92 | 6.93 | 12.14 | 10.62 |
| 1-1/2" | 6.35 | 5.54 | 8.92 | 7.80 | 12.70 | 11.12 |
| 2" | 6.93 | 6.04 | 10.92 | 9.50 | 13.84 | 12.12 |
| 2-1/2" | 8.76 | 7.67 | - | - | - | - |
| 3" | 9.52 | 8.30 | - | - | - | - |
| 4" | 10.69 | 9.53 | - | - | - | - |
| NPS | 3000# | 6000# | 9000# | |||
| D max. | D min | D max | D min | D max | D min | |
| 1/8" | 7.6 | 6.1 | 4.8 | 3.2 | - | - |
| 1/4" | 10.0 | 8.5 | 7.1 | 5.6 | - | - |
| 3/8" | 13.3 | 11.8 | 9.9 | 8.4 | - | - |
| 1/2" | 16.6 | 15.0 | 12.5 | 11.0 | 7.2 | 5.6 |
| 3/4" | 21.7 | 20.2 | 16.3 | 14.8 | 11.8 | 10.3 |
| 1" | 27.4 | 25.9 | 21.5 | 19.9 | 16.0 | 14.4 |
| 1-1/4" | 35.8 | 34.3 | 30.2 | 28.7 | 23.5 | 22.2 |
| 1-1/2" | 41.6 | 40.1 | 34.7 | 33.2 | 28.7 | 27.2 |
| 2" | 53.3 | 51.7 | 43.6 | 42.1 | 38.9 | 37.4 |
| 2-1/2" | 64.2 | 61.2 | - | - | - | - |
| 3" | 79.4 | 76.4 | - | - | - | - |
| 4" | 103.8 | 100.7 | - | - | - | - |
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