ASME B16.11 socket welding 45° elbow, socket welding 90° elbow
The ASME B16.11 standard covers the specifications for forged steel fittings, including socket weld fittings. Socket welding elbows are a type of forged steel fitting designed to change the direction of the piping system,Haihao Group can provide socket welding 45° elbows and socket welding 90° elbows.

Socket weld ASTM A105 45 degree elbows
We manufacture socket welding elbows according to ASME B16.11 standard in the nominal pipe size ⅛ through 4.The materials can be carbon steel,stainless steel,alloy steel.The dimensions of socket welding 45 degree elbow and 90 degree elbow according to ASME B16.11 standard as follows:
ASME B16.11 Socket Welding 45° Elbow and 90° Elbow Dimensions:

Socket welding 45 degree elbow and 90 degree elbow
Nominal Pipe Size | Socker Bore Dia., B | Bore Diameter of Fittings, D | Socket Wall Thickness, C [Note (1)] | Body Wall,G | Socket Depth,J | Center-to-Bottom of Socket, A | |||||||||||||||||||
3000 | 6000 | 9000 | 3000 | 6000 | 9000 | 3000 | 6000 | 9000 | 90-deg Elbow | 45-deg Elbow | Tol.,± | ||||||||||||||
Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | Avg. | Min. | Avg. | Min. | Avg. | Min. | Min. | Min. | Min. | Min. | 3000 | 6000 | 9000 | 3000 | 6000 | 9000 | ||
⅛ | 11.2 | 10.8 | 7.6 | 6.1 | 4.8 | 3.2 | … | … | 3.18 | 3.18 | 3.96 | 3.43 | … | … | 2.41 | 3.15 | … | 9.5 | 11.0 | 11.0 | … | 8.0 | 8.0 | … | 1.0 |
¼ | 14.6 | 14.2 | 10.0 | 8.5 | 7.1 | 5.6 | … | … | 3.78 | 3.30 | 4.60 | 4.01 | … | … | 3.02 | 3.68 | … | 9.5 | 11.0 | 13.5 | … | 8.0 | 8.0 | … | 1.0 |
⅜ | 18.0 | 17.6 | 13.3 | 11.8 | 9.9 | 8.4 | … | … | 4.01 | 3.50 | 5.03 | 4.37 | … | … | 3.20 | 4.01 | … | 9.5 | 13.5 | 15.5 | … | 8.0 | 11.0 | … | 1.5 |
½ | 22.2 | 21.8 | 16.6 | 15.0 | 12.5 | 11.0 | 7.2 | 5.6 | 4.67 | 4.09 | 5.97 | 5.18 | 9.35 | 8.18 | 3.73 | 4.78 | 7.47 | 9.5 | 15.5 | 19.0 | 25.5 | 11.0 | 12.5 | 15.5 | 1.5 |
¾ | 27.6 | 27.2 | 21.7 | 20.2 | 16.3 | 14.8 | 11.8 | 10.3 | 4.90 | 4.27 | 6.96 | 6.04 | 9.78 | 8.56 | 3.91 | 5.56 | 7.82 | 12.5 | 19.0 | 22.5 | 28.5 | 13.0 | 14.0 | 19.0 | 1.5 |
1 | 34.3 | 33.9 | 27.4 | 25.9 | 21.5 | 19.9 | 16.0 | 14.4 | 5.69 | 4.98 | 7.92 | 6.93 | 11.38 | 9.96 | 4.55 | 6.35 | 9.09 | 12.5 | 22.5 | 27.0 | 32.0 | 14.0 | 17.5 | 20.5 | 2.0 |
1¼ | 43.1 | 42.7 | 35.8 | 34.3 | 30.2 | 28.7 | 23.5 | 22.0 | 6.07 | 5.28 | 7.92 | 6.93 | 12.14 | 10.62 | 4.85 | 6.35 | 9.70 | 12.5 | 27.0 | 32.0 | 35.0 | 17.5 | 20.5 | 22.5 | 2.0 |
1½ | 49.2 | 48.8 | 41.6 | 40.1 | 34.7 | 33.2 | 28.7 | 27.2 | 6.35 | 5.54 | 8.92 | 7.80 | 12.70 | 11.12 | 5.08 | 7.14 | 10.15 | 12.5 | 32.0 | 38.0 | 38.0 | 20.5 | 25.5 | 25.5 | 2.0 |
2 | 61.7 | 61.2 | 53.3 | 51.7 | 43.6 | 42.1 | 38.9 | 37.4 | 6.93 | 6.04 | 10.92 | 9.50 | 13.84 | 12.12 | 5.54 | 8.74 | 11.07 | 16.0 | 38.0 | 41.0 | 54.0 | 25.5 | 28.5 | 28.5 | 2.0 |
2½ | 74.4 | 73.9 | 64.2 | 61.2 | … | … | … | … | 8.76 | 7.67 | … | … | … | … | 7.01 | … | … | 16.0 | 41.0 | … | … | 28.5 | … | … | 2.5 |
3 | 90.3 | 89.8 | 79.4 | 76.4 | … | … | … | … | 9.52 | 8.30 | … | … | … | … | 7.62 | … | … | 16.0 | 57.0 | … | … | 32.0 | … | … | 2.5 |
4 | 115.7 | 115.2 | 103.8 | 100.7 | … | … | … | … | 10.69 | 9.35 | … | … | … | … | 8.56 | … | … | 19.0 | 66.5 | … | … | 41.0 | … | … | 2.5 |
General note: Dimensions are in millimeters.
Note (1): Average of socket wall thickness around periphery shall not be less than listed values.The minimum values are permitted in localized areas.

Socket welding 45 degree elbow and 90 degree elbow
Nominal Pipe Size | Socker Bore Dia., B | Bore Diameter of Fittings, D | Socket Wall Thickness, C [Note (1)] | Body Wall,G | Socket Depth,J | Center-to-Bottom of Socket, A | |||||||||||||||||||
3000 | 6000 | 9000 | 3000 | 6000 | 9000 | 3000 | 6000 | 9000 | 90-deg Elbow | 45-deg Elbow | Tol.,± | ||||||||||||||
Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | Avg. | Min. | Avg. | Min. | Avg. | Min. | Min. | Min. | Min. | Min. | 3000 | 6000 | 9000 | 3000 | 6000 | 9000 | ||
⅛ | 0.440 | 0.420 | 0.299 | 0.239 | 0.189 | 0.126 | … | … | 0.125 | 0.125 | 0.156 | 0.135 | … | … | 0.095 | 0.124 | … | 0.38 | 0.44 | 0.44 | … | 0.31 | 0.31 | … | 0.03 |
¼ | 0.575 | 0.555 | 0.394 | 0.334 | 0.280 | 0.220 | … | … | 0.149 | 0.130 | 0.181 | 0.158 | … | … | 0.119 | 0.145 | … | 0.38 | 0.44 | 0.53 | … | 0.31 | 0.31 | … | 0.03 |
⅜ | 0.710 | 0.690 | 0.523 | 0.463 | 0.389 | 0.329 | … | … | 0.158 | 0.138 | 0.198 | 0.172 | … | … | 0.126 | 0.158 | … | 0.38 | 0.53 | 0.62 | … | 0.31 | 0.44 | … | 0.06 |
½ | 0.875 | 0.855 | 0.652 | 0.592 | 0.494 | 0.434 | 0.282 | 0.222 | 0.184 | 0.161 | 0.235 | 0.204 | 0.368 | 0.322 | 0.147 | 0.188 | 0.294 | 0.38 | 0.62 | 0.75 | 1.00 | 0.44 | 0.50 | 0.62 | 0.06 |
¾ | 1.085 | 1.065 | 0.854 | 0.794 | 0.642 | 0.582 | 0.464 | 0.404 | 0.193 | 0.168 | 0.274 | 0.238 | 0.385 | 0.337 | 0.154 | 0.219 | 0.308 | 0.50 | 0.75 | 0.88 | 1.12 | 0.50 | 0.56 | 0.75 | 0.06 |
1 | 1.350 | 1.330 | 1.079 | 1.019 | 0.845 | 0.785 | 0.629 | 0.569 | 0.224 | 0.196 | 0.312 | 0.273 | 0.448 | 0.392 | 0.179 | 0.250 | 0.358 | 0.50 | 0.88 | 1.06 | 1.25 | 0.56 | 0.69 | 0.81 | 0.08 |
1¼ | 1.695 | 1.675 | 1.410 | 1.350 | 1.190 | 1.130 | 0.926 | 0.866 | 0.239 | 0.208 | 0.312 | 0.273 | 0.478 | 0.418 | 0.191 | 0.250 | 0.382 | 0.50 | 1.06 | 1.25 | 1.38 | 0.69 | 0.81 | 0.88 | 0.08 |
1½ | 1.935 | 1.915 | 1.640 | 1.580 | 1.368 | 1.308 | 1.130 | 1.070 | 0.250 | 0.218 | 0.351 | 0.307 | 0.500 | 0.438 | 0.200 | 0.281 | 0.400 | 0.50 | 1.25 | 1.50 | 1.50 | 0.81 | 1.00 | 1.00 | 0.08 |
2 | 2.426 | 2.406 | 2.097 | 2.037 | 1.717 | 1.657 | 1.533 | 1.473 | 0.273 | 0.238 | 0.430 | 0.374 | 0.545 | 0.477 | 0.218 | 0.344 | 0.436 | 0.62 | 1.50 | 1.62 | 2.12 | 1.00 | 1.12 | 1.12 | 0.08 |
2½ | 2.931 | 2.906 | 2.529 | 2.409 | … | … | … | … | 0.345 | 0.302 | … | … | … | … | 0.276 | … | … | 0.62 | 1.62 | … | … | 1.12 | … | … | 0.10 |
3 | 3.560 | 3.535 | 3.128 | 3.008 | … | … | … | … | 0.375 | 0.327 | … | … | … | … | 0.300 | … | … | 0.62 | 2.25 | … | … | 1.25 | … | … | 0.10 |
4 | 4.570 | 4.545 | 4.086 | 3.966 | … | … | … | … | 0.421 | 0.368 | … | … | … | … | 0.337 | … | … | 0.75 | 2.62 | … | … | 1.62 | … | … | 0.10 |
General note: Dimensions are in inches.
Note (1): Average of socket wall thickness around periphery shall not be less than listed values.The minimum values are permitted in localized areas.

Socket weld 90 degree elbow
Meanwhile,we manufacture & supply different types of socket welding pipe fittings according to ASME B16.11 standard as follows:
- ASME B16.11 socket welding 45° elbows,socket welding 90° elbows
- ASME B16.11 socket welding tees
- ASME B16.11 socket welding crosses
- ASME B16.11 socket welding bosses
- ASME B16.11 socket welding caps
- ASME B16.11 socket welding couplet
- ASME B16.11 socket welding full coupling,socket welding half coupling
Haihao Group manufacture & supply & export pipeline products more than 30 years,which contain butt welding pipe fittings(elbows,tees,reducers,caps,bends,crosses,etc),forged pipe fittings(socket weld/threaded elbows, tees, reducers, crosses, couplings, union, outlet, nipple, etc),steel pipes(seamless steel pipes, SAW/ERW steel pipes, casing and tubing pipes,etc) and forged flanges(weld neck flange, slip on flange, blind flange, lap joint flange, plate flange, threaded flange, socket weld flange, orifice flange, spectacle blind flange, weld overlay cladding flange,etc).We supply the products in different standards such as ANSI/ASME, ASTM, BS, EN, JIS, GOST, ISO, MSS, etc.If you want to know more about our pipeline products,please email us:sales@haihaogroup.com