Super Duplex Steel Buttweld Fittings are incredibly strong and highly corrosion resistant. They are the ideal choice for any application that requires superior strength, excellent resistance to pitting and crevice corrosion, as well as superior mechanical properties even in extreme temperatures.
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These fittings also exhibit good weldability and formability, ensuring a secure connection between two pipes or other components. Super duplex steel buttweld fittings provide the highest level of performance and reliability for your project needs. They offer extreme durability and long-lasting performance in any environment, making them an excellent choice for commercial, industrial and residential applications. With their thermal stability, they can handle extreme temperatures without suffering from corrosion or breakdowns due to heat exposure. Investing in super duplex steel buttweld fittings will ensure reliable and long-lasting performance that you can depend on. With these fittings, you can rest assured knowing your project is backed by the highest quality materials available. Shop our selection today to find the perfect Super Duplex Steel Buttweld Fitting for your application needs.
When it comes to highly corrosive environments, super duplex steel fittings are a great choice due to their enhanced resistance against acid and other chemical compounds. They have an extremely high chromium content which provides excellent protection against pitting and crevice corrosion, even in seawater. Super Duplex Steel Buttweld Fittings are also highly resistant to stress corrosion cracking and greater strength than conventional stainless steels, making them ideal for use in a wide range of industries. These fittings are available in various sizes and configurations to meet your needs, so you can be sure to find the perfect fit for your application. Shop our selection today to find the best Super Duplex Steel Buttweld Fitting for your project. Investing in quality materials will ensure long-term performance and reliability that you can count on.
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 |
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 |
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 |
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 |
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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