ASME B16.11 Socked Weld Elbow SW Manufacturer
Socket Weld Elbows are forged steel fittings used to change the direction of flow in small-bore piping systems. Manufactured according to ASME B16.11, these elbows are designed for high-pressure and high-temperature service where strong, leak-proof connections are required.
They are commonly available in 45° and 90° angles and are joined to pipes by socket welding, ensuring excellent strength and resistance to leakage.
What is a Socket Weld Elbow?
A Socket Weld Elbow is a forged pipe fitting used to change the direction of flow in small-diameter, high-pressure piping systems. It is designed according to ASME B16.11 and is available in 45° and 90° angles.
Specification of Socket Weld Elbow (SW Elbow)
- Standard: ASME B16.11
- Sizes: ½” to 4” NB
- Pressure Ratings: Class 3000, 6000, 9000
- Connection Type: Socket Weld (pipe inserted into socket and welded)
- Angles: 45°, 90°
Materials Grades
- Carbon Steel: ASTM A105, A350 LF2
- Alloy Steel: ASTM A182 F5, ASTM A182 F9, F11, F22, A182 F91
- Stainless Steel: ASTM A182 F304/304L, F316/316L, F321
- Duplex & Super Duplex: ASTM A182 F51, F53, F55
- Nickel Alloys: Inconel 600, Inconel 625, Monel 400, Hastelloy C22, Alloy 20
Dimensions Socket Weld Elbows ASME B16.11

| Class 3000 Socket Weld Elbows ASME B16.11 | |||||
| NPS | Socket Bore | Depth Socket | Bore DIA | Socket WT | Body WT |
| B | J | D | C | G | |
| 1/2 | 21.95 21.70 | 10 | 16.6 15 | 4.65 4.10 | 3.75 |
| 3/4 | 27.30 27.05 | 13 | 21.7 20.2 | 4.90 4.25 | 3.90 |
| 1 | 34.05 33.80 | 13 | 27.4 25.9 | 5.70 5.00 | 4.55 |
| 1.1/4 | 42.80 42.55 | 13 | 35.8 34.3 | 6.05 5.30 | 4.85 |
| 1.1/2 | 48.90 48.65 | 13 | 41.7 40.1 | 6.35 5.55 | 5.10 |
| 2 | 61.35 61.10 | 16 | 53.5 51.7 | 6.95 6.05 | 5.55 |
| 2.1/2 | 74.20 73.80 | 16 | 64.2 61.2 | 8.75 7.65 | 7.00 |
| 3 | 90.15 89.80 | 16 | 79.5 46.4 | 9.50 8.30 | 7.60 |
| 4 | 115.80 115.45 | 19 | 103.8 100.7 | 10.70 9.35 | 8.55 |
| NPS | Center to bottom of socket A | ||||
| 90° | 45° | ||||
| 1/2 | 15.5 | 11.5 | |||
| 3/4 | 19.5 | 12.5 | |||
| 1 | 22 | 14 | |||
| 1.1/4 | 27 | 17 | |||
| 1.1/2 | 32 | 21 | |||
| 2 | 38 | 25 | |||
| 2.1/2 | 41.5 | 29 | |||
| 3 | 57.5 | 31.5 | |||
| 4 | 66.5 | 41.5 | |||
| Class 6000 Socket Weld Elbows ASME B16.11 | |||||
| NPS | Socket Bore | Depth Socket | Bore DIA | Socket WT | Body WT |
| B | J | D | C | G | |
| 1/2 | 21.95 21.70 | 10 | 12.5 11 | 5.95 5.20 | 4.80 |
| 3/4 | 27.30 27.05 | 13 | 16.3 14.8 | 6.95 6.05 | 5.55 |
| 1 | 34.05 33.80 | 13 | 21.5 19.9 | 7.90 6.95 | 6.35 |
| 1.1/4 | 42.80 42.55 | 13 | 30.2 28.7 | 7.90 6.95 | 6.35 |
| 1.1/2 | 48.90 48.65 | 13 | 34.7 33.2 | 8.90 7.80 | 7.15 |
| 2 | 61.35 61.10 | 16 | 43.6 42.1 | 10.90 9.50 | 8.75 |
| NPS | Center to bottom of socket A | ||||
| 90° | 45° | ||||
| 1/2 | 19.5 | 12.5 | |||
| 3/4 | 22.5 | 14.5 | |||
| 1 | 27 | 17 | |||
| 1.1/4 | 32 | 21 | |||
| 1.1/2 | 38 | 25 | |||
| 2 | 41 | 29 | |||
General notes..
- Dimensions are in millimeters unless otherwise indicated.
- Socket Bore (B) – Maximum and minimum dimensions.
- Bore Diameter (D) – Maximum and minimum dimensions.
- Socket wall thickness – (C) – Average of Socket wall thickness.
- Dimensional tolerances center to bottom of socket – (A)
NPS 1/2 and NPS 3/4 = +/- 1.5 mm
NPS 1 to NPS 2 = +/- 2 mm
NPS 2.1/2 to NPS 4 = +/- 2.5 mm
Download ASME B16.11 Socket Weld Elbow Dimension specification
Download ASME B16.11 latest edition
Related Products
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- ASME B16.11 Socket Weld Coupling
- ASME B16.11 Threaded Elbow
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