
Aluminium buttweld fittings are designed to form a strong and permanent joint between two pieces of aluminium pipe. Palgotta Metal Pvt Ltd is the leading supplier of aluminum buttweld fittings. We are supplying different products like Aluminum elbows, reducers, tees, stubs etc. All our fittings are made under strict quality control protocols to ensure that they are safe to use in any environment.
We also carry Aluminum 90 degree elbows used to form a ninety degree angle in a pipe run. Some of these have an extended radius to allow for greater flow capacity. We are very flexible with our aluminum products to meet the specific needs and dimensions of each and every client. We believe in the best service and satisfaction for our customers. Contact us today to find out how we can assist you with your engineering projects.
Table of Content
What are Aluminium Buttweld Fittings?
Aluminium Buttweld Fittings are superior pipe fittings which are designed to make a reliable and secure connection between two pipes. They are widely used in the petrochemical industry, on ships and for other industrial applications.
What are the advantages of Aluminium Buttweld Fittings?
The main benefit of Aluminium Buttweld Fittings is that they produce a tight, leak-proof connection when combining two pieces of pipe. They are also malleable, which means that they can be adapted to suit specific applications, making them suitable for a wide range of uses.
What are the features of Aluminium Buttweld Fittings?
Due to the high corrosion resistance of these fittings they are ideal for use in harsh environments such as offshore oil rigs and chemical plants. They are also good thermal conductors and are easy to fit.

What are the applications of Aluminium Buttweld Fittings?
Aluminium Buttweld Fittings are often used in piping systems, oil and gas pipelines, chemical processing plants, water treatment facilities, and ships. They are also suitable for connecting pipes of different sizes and wall thicknesses.
In conclusion, Aluminum butt weld fittings provide a reliable and secure connection between two pieces of pipe while offering excellent corrosion resistance and thermal conductivity - making them ideal for many industrial applications. They can be customized to fit specific applications due to their malleable nature and are easy to install. As such, they have become an increasingly popular choice regarding pipe fittings.
In conclusion, Aluminum butt weld fittings provide a reliable and secure connection between two pieces of pipe while offering excellent corrosion resistance and thermal conductivity - making them ideal for many industrial applications. They can be customized to fit specific applications due to their malleable nature and are easy to install. As such, they have become an increasingly popular choice regarding pipe fittings.

The specifications of Aluminum Buttweld Fittings, including schedule, thickness and dimensions is listed in the table below.
The different types of Aluminum Buttweld Fittings available are listed below.


The Aluminum Buttweld Fittings weight chart is given in the table below.
| ASME b16.9 Fittings Normal Pipe Size |
ANSI b16 9 Pipe Fitting O D Y |
Wall Thickness
T (Pipe Elbow Sch.) |
LR 45 Deg Elbows Centre to Face B | SR 45 Deg Elbows Weight |
LR 90 Deg Elbows Centre to Face A | LR 90 Deg Elbows Weight In Below | SR 90 Deg Elbows Centre to Face A | SR 90 Deg Elbows Weight In Below | ||
| millimeter | inch. | millimeter | millimeter | Schedule | millimeter | kilogram | millimeter | kilogram | millimeter | kilogram |
| 15 | 1/2” | 21.3 | 2.78 | STD | 15.9 | 0.04 | 38.1 | 0.08 | – | – |
| 3.73 | X.S | 15.9 | 0.05 | 38.1 | 0.10 | – | – | |||
| 20 | 3/4” | 26.7 | 2.87 | STD | 11.1 | 0.04 | 28.6 | 0.08 | – | – |
| 3.91 | X.S | 11.1 | 0.05 | 28.6 | 0.11 | – | – | |||
| 25 | 1” | 33.4 | 3.38 | STD | 22.2 | 0.09 | 38.1 | 0.15 | 25.4 | 0.11 |
| 4.55 | X.S | 22.2 | 0.11 | 38.1 | 0.19 | 25.4 | 0.14 | |||
| 32 | 11/4” | 42.2 | 3.56 | STD | 25.4 | 0.14 | 47.6 | 0.28 | 31.75 | 0.18 |
| 4.85 | X.S | 25.4 | 0.2 | 47.6 | 0.39 | 31.75 | 0.24 | |||
| 40 | 11/2” | 48.3 | 3.68 | STD | 28.6 | 0.2 | 57.1 | 0.4 | 38.1 | 0.26 |
| 5.08 | X.S | 28.6 | 0.25 | 57.1 | 0.5 | 38.1 | 0.35 | |||
| 50 | 2” | 60.3 | 3.91 | STD | 34.9 | 0.36 | 76.2 | 0.72 | 50.8 | 0.5 |
| 5.54 | X.S | 34.9 | 0.5 | 76.2 | 1.0 | 50.8 | 0.68 | |||
| 65 | 21/2” | 73.0 | 5.16 | STD | 44.4 | 0.73 | 95.2 | 1.46 | 63.5 | 0.95 |
| 7.01 | X.S | 44.4 | 0.91 | 95.2 | 1.82 | 63.5 | 1.27 | |||
| 80 | 3” | 88.9 | 5.49 | STD | 50.8 | 1.1 | 114.3 | 2.18 | 76.2 | 1.45 |
| 7.62 | X.S | 50.8 | 1.45 | 114.3 | 2.86 | 76.2 | 1.95 | |||
| 100 | 4” | 114.3 | 6.02 | STD | 63.5 | 2.1 | 152.4 | 4.2 | 101.6 | 2.8 |
| 8.56 | X.S | 63.5 | 2.9 | 152.4 | 5.7 | 101.6 | 3.9 | |||
| 125 | 5” | 141.3 | 6.65 | STD | 79.4 | 3.4 | 190.0 | 6.8 | 127.0 | 4.8 |
| 9.5 | X.S | 79.4 | 5.0 | 190.0 | 10.0 | 127.0 | 6.5 | |||
| 150 | 6” | 168.3 | 7.11 | STD | 95.2 | 5.1 | 229.0 | 10.1 | 152.4 | 6.8 |
| 10.97 | X.S | 95.2 | 7.7 | 229.0 | 15.3 | 152.4 | 10.2 | |||
| 200 | 8” | 219.1 | 8.18 | STD | 127.0 | 10.2 | 305.0 | 20.4 | 203.0 | 13.6 |
| 12.7 | X.S | 127.0 | 15.5 | 305.0 | 30.9 | 203.0 | 20.9 | |||
| 250 | 10” | 273.9 | 9.27 | STD | 159.0 | 18.1 | 381.0 | 36.1 | 254.0 | 24.1 |
| 12.7 | X.S | 159.0 | 24.4 | 381.0 | 48.8 | 254.0 | 32.5 | |||
| 300 | 12” | 323.9 | 9.52 | STD | 190.0 | 26.6 | 457.0 | 53.1 | 305.0 | 35.4 |
| 12.7 | X.S | 190.0 | 35.0 | 457.0 | 70.0 | 305.0 | 46.7 | |||
| 350 | 14” | 355.6 | 9.52 | STD | 222.0 | 34.1 | 533.0 | 68.1 | 356.0 | 45.4 |
| 12.7 | X.S | 222.0 | 45.0 | 533.0 | 90.0 | 356.0 | 60.0 | |||
| 400 | 16” | 406.4 | 9.52 | STD | 254.0 | 45.0 | 610.0 | 89.3 | 406.0 | 59.5 |
| 12.7 | X.S | 254.0 | 59.0 | 610.0 | 118.0 | 406.0 | 78.7 | |||
| 450 | 18” | 457.0 | 9.52 | STD | 286.0 | 56.5 | 686.0 | 113.0 | 457.0 | 75.6 |
| 12.7 | X.S | 286.0 | 75.0 | 686.0 | 150.0 | 457.0 | 100.0 | |||
| 500 | 20” | 508.0 | 9.52 | STD | 318.0 | 85.0 | 762.0 | 140.0 | 508.0 | 93.5 |
| 12.7 | X.S | 318.0 | 112.5 | 762.0 | 186.0 | 508.0 | 124.0 | |||
| 600 | 24” | 610.00 | 9.52 | STD | 381.0 | 101.5 | 914.0 | 203.0 | 610.0 | 135.0 |
| 12.7 | X.S | 381.0 | 134.5 | 914.0 | 269.0 | 610.0 | 179.0 | |||
The Aluminum Buttweld Fittings tolerance chart is listed in the table given below in detail.
| BW Fittings ANSI B16.9 Tolerance (45 And 90 degree) Elbow, End Cap, Tee, Reducer) | 90 Deg. & 45 Deg. Elbow and Tee |
Reducer & Long Lap Joint Stub End |
Cap | |||
| Fitting Dimension (NPS) | Outside Daimeter Diameter at Bevel |
Inside Diameter at End |
Wall Thick T | Center-to-End Dimension A ,C ,B |
Over-all Length H |
Over-all Length F |
| 1/2 to 2-1/2 | +0.06 | Not less than 87.5% of nominal Thickness |
+/- 0.06 | +/- 0.06 | +/- 0.12 | |
| -0.03 | ||||||
| 3 to 3-1/2 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.12 | |
| 4 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.12 | |
| 5 to 8 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.25 | |
| 10 to 18 | +0.16 | +/- 0.12 | +/- 0.09 | +/- 0.09 | +/- 0.25 | |
| -0.12 | ||||||
| 20 to 24 | +0.25 | +/- 0.19 | +/- 0.09 | +/- 0.09 | +/- 0.25 | |
| -0.19 | ||||||
| 26 to 30 | +0.25 | +/- 0.19 | +/- 0.12 | +/- 0.19 | +/- 0.38 | |
| -0.19 | ||||||
| 32 to 48 | +0.25 | +/- 0.19 | +/- 0.19 | +/- 0.19 | +/- 0.38 | |
| -0.19 | ||||||
The dimensions available for Aluminum Buttweld Fittings is listed in the table given below.
| NPS (Normal Pipe Size) | O.D. (Outside Diameter) | Ave. I.D. (Inside Diameter) |
Mani. WALL |
Normal Weight |
Maxi. W.P. psi |
| 1/4" | .540 | .282 | .119 | .105 | 1130 |
| 3/8" | .675 | .403 | .126 | .146 | 920 |
| 1/2" | .840 | .526 | .147 | .213 | 850 |
| 3/4" | 1.050 | .722 | .154 | .289 | 690 |
| 1" | 1.315 | .936 | .179 | .424 | 630 |
| 1-1/4" | 1.660 | 1.255 | .191 | .586 | 520 |
| 1-1/2" | 1.900 | 1.476 | .200 | .711 | 470 |
| 2" | 2.375 | 1.913 | .218 | .984 | 400 |
| 2-1/2" | 2.875 | 2.290 | .276 | 1.500 | 420 |
| 3" | 3.500 | 2.864 | .300 | 2.010 | 370 |
| 3-1/2" | 4.000 | 3.326 | .318 | 2.452 | 350 |
| 4" | 4.500 | 3.786 | .337 | 2.938 | 320 |
| 5" | 5.563 | 4.768 | .375 | 4.078 | 290 |
| 6" | 6.625 | 5.709 | .432 | 5.610 | 280 |
| 8" | 8.625 | 7.565 | .500 | 8.522 | 250 |
| 10" | 10.750 | 9.493 | .593 | 12.635 | 230 |
| 12" | 12.750 | 11.294 | .687 | 17.384 | 230 |
| 14" | 14.000 | 12.410 | .750 | 20.852 | 220 |
| 16" | 16.000 | 14.213 | .843 | 26.810 | 220 |
| 18" | 18.000 | 16.014 | .937 | 33.544 | 220 |
| 20" | 20.000 | 17.814 | 1.031 | 41.047 | 220 |
| 24" | 24.000 | 21.418 | 1.218 | 58.233 | 210 |
The standards of Aluminum Buttweld Fittings is explained in detail in the table given below.
| ASME B16.9 Fittings | Factory-Made Wrought Buttwelding Fittings | Long Radius Elbows, Long Radius Reducing Elbows, Long Radius Returns, Short Radius Elbows, Short Radius 180-deg Rerurns, 3D elbows, Straight Tees, Straight Crosses, Reducing Tees, Crosses, Lap Joint Stub Ends, Caps, Reducers |
| ASME B16.28 | Short Radius Elbows, Short Radius 180-deg Returns | |
| MSS SP43 | Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications | Long Radius Elbows, Straight and Reducing-on-the-Outlet Tees, Lap Joint Stub ends, caps, long radius 180 Degree returns, concentric reducers, eccentric reducers |
| MSS SP75 | Long Radius Elbows, 3R elbows, straight tees, reducing outlet tees, caps, reducers |
The pressure rating for Aluminum Buttweld Fittings is listed below in detail.
| Pressure-Temperature ratings for ASME B16.9 Buttweld fittings (psig) | |||||
|---|---|---|---|---|---|
| Temperature Ratings | Pressure Class | ||||
| 150 | 300 | ||||
| 1/4 - 1 inch. | 1 1/4 - 2 inch. | 2 1/2 - 3 inch. | |||
| (oF) | (oC) | ||||
| -20 to 150 | -29 to 66 | 300 | 2000 | 1500 | 1000 |
| 200 | 93 | 265 | 1785 | 1350 | 910 |
| 250 | 121 | 225 | 1575 | 1200 | 825 |
| 300 | 149 | 185 | 1360 | 1050 | 735 |
| 350 | 177 | 150 | 1150 | 900 | 650 |
| 400 | 204 | - | 935 | 750 | 560 |
| 450 | 232 | - | 725 | 600 | 475 |
| 500 | 260 | - | 510 | 450 | 385 |
| 550 | 288 | - | 300 | 300 | 300 |
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