Stainless Steel Elbow
Stainless Steel Elbow
Stainless steel elbows are vital components in piping systems that facilitate directional changes in the flow of liquids, gases, or slurries. These fittings are essential in industries like petrochemical, pharmaceutical, food processing, water treatment, and more, providing strength, durability, and corrosion resistance. Stainless steel elbows come in a variety of sizes, angles, and specifications to meet different piping requirements.
What is a Stainless Steel Elbow?
A stainless steel elbow is a type of pipe fitting that allows for a change in the direction of fluid flow in a pipeline. These elbows are typically welded, but they can also be threaded or socket-welded, depending on the system’s requirements. The elbow’s function is to alter the direction of the pipe system, making it possible to redirect the flow to another pipe or process line.
Types of Stainless Steel Elbows
Technical Data Specification
Parameter | Specification |
---|---|
Material Grades | 304, 304L, 316, 316L, 321, 310S, 347, Duplex 2205 |
Standard | ASME B16.9, ASME B16.28, MSS SP-43, DIN 2605 |
Type | Seamless, Welded |
Size Range | 1/2″ NB to 48″ NB |
Wall Thickness (WT) | SCH 5S, SCH 10S, SCH 40S, SCH 80S, SCH 160 |
Bend Radius | 1D, 1.5D, 2D, 3D, 5D, Custom |
Connection Type | Butt Weld, Socket Weld, Threaded |
Angle | 45°, 90°, 180°, Custom |
Surface Finish | Sandblasted, Pickled, Polished, Mirror Finish |
Pressure Rating | Up to 2500# |
Tolerances | According to ASME B16.9 or client specifications |
End Preparation | Beveled Ends (BE), Plain Ends (PE) |
Corrosion Resistance | Excellent resistance to rust, pitting, and stress corrosion cracking |
Testing | Hydrostatic Testing, Radiography Testing (RT), PMI, Hardness Testing |
Applications | Oil & Gas, Petrochemical, Power Plants, Chemical Industry, Water Treatment |
Stainless Steel Elbow Dimensions
45-Degree Elbow Dimensions Chart (in lbs)
NPS O.D.
D90 deg LR Center-to-End
A45 deg Long Radius Center-to-End B 90 deg 3D Center-to-End A 45 deg 3D Center-to-End B
1/2 21.3 38 16 – –
3/4 26.7 38 19 57 24
1 33.4 38 22 76 31
1¼ 42.2 48 25 95 39
1½ 48.3 57 29 114 47
2 60.3 76 35 152 63
2½ 73 95 44 190 79
3 88.9 114 51 229 95
3½ 101.6 133 57 267 111
4 114.3 152 64 305 127
5 141.3 190 79 381 157
6 168.3 229 95 457 189
8 219.1 305 127 610 252
10 273 381 159 762 316
12 323.8 457 190 914 378
14 355.6 533 222 1067 441
16 406.4 610 254 1219 505
18 457 686 286 1372 568
20 508 762 318 1524 632
22 559 838 343 1676 694
24 610 914 381 1829 757
26 660 991 406 1981 821
28 711 1067 438 2134 883
30 762 1143 470 2286 964
32 813 1219 502 2438 1010
34 864 1295 533 2591 1073
36 914 1372 565 2743 1135
38 965 1448 600 2896 1200
40 1016 1524 632 3048 1264
42 1067 1600 660 3200 1326
44 1118 1676 695 3353 1389
46 1168 1753 727 3505 1453
48 1219 1829 759 3658 1516
90 Degree Elbow Dimensions Chart (in lbs)
Inch. ND millimeter Center to center Radius Center to end Back to face
D O A B K
1/2 15 21,34 76,20 38,10 15,87 47,62
3/4 20 26,67 57,15 28,57 11,11 42,86
1 25 33,40 76,20 38,10 22,22 55,56
1 1/4 32 42,16 95,25 47,60 25,40 69,85
1 1/2 40 48,26 114,30 57,15 28,57 82,55
2 50 60,32 152,40 76,20 34,92 106,40
2 1/2 65 73,02 190,50 95,25 44,45 131,80
3 80 88,90 228,60 114,30 50,80 158,75
3 1/2 90 101,60 266,70 133,35 57,15 184,15
4 100 114,30 304,80 152,40 63,50 209,55
5 125 141,30 381,00 190,50 79,38 261,90
6 150 168,27 457,20 228,60 95,25 312,70
8 200 219,07 609,60 304,80 127,00 414,30
10 250 273,05 762,00 381,00 158,75 517,50
12 300 323,85 914,40 457,20 190,50 619,10
14 350 355,60 1066,80 533,40 222,25 711,20
16 400 406,40 1219,20 609,60 254,00 812,80
18 450 457,20 1371,60 685,80 285,74 914,40
20 500 508,00 1524,00 762,00 317,50 1016,00
22 550 558,80 1676,40 838,20 342,90 1117,60
24 600 609,60 1828,80 914,40 381,00 1219,20
28 700 711,20 2133,60 1066,80 441,90 1422,40
180 Degree Elbow Dimensions Chart (in lbs)
Normal Pipe Size Outside Daimeter
DASME 180 degree Long Rad ASME 180 degree Short Rad
Center to Center O Back to Face K Center to Center O Back to Face K
1/2 21.3 76 48 … …
3/4 26.7 76 51 … …
1 33.4 76 56 51 41
1.1/4 42.2 95 70 64 52
1.1/2 48.3 114 83 76 62
2 60.3 152 106 102 81
2.1/2 73 190 132 127 100
3 88.9 229 159 152 121
3.1/2 101.6 267 184 178 140
4 114.3 305 210 203 159
5 141.3 381 262 254 197
6 168.3 457 313 305 237
8 219.1 610 414 406 313
10 273 762 518 508 391
12 323.8 914 619 610 467
14 355.6 1067 711 711 533
16 406.4 1219 813 813 610
18 457 1372 914 914 686
20 508 1524 1016 1016 762
22 559 1676 1118 1118 838
24 610 1829 1219 1219 914
Normal Pipe Size Outside Daimeter D 180 degree Long Rad 180 degree Short Rad
Center to Center O Back to Face K Center to Center O Back to Face K
Stainless Steel ELbow Weight Chart
45-degree Elbow Weight Chart (in lbs)
Nominal Pipe Size (NPS) Schedule 40 Schedule 80 Schedule 160
1/2″ 0.6 0.9 1.3
3/4″ 0.8 1.2 1.7
1″ 1.1 1.6 2.2
1 1/4″ 1.4 2.1 3.0
1 1/2″ 1.8 2.7 3.7
2″ 2.6 4.0 5.5
2 1/2″ 4.1 6.2 8.4
3″ 5.7 8.6 11.5
4″ 8.6 12.7 17.0
5″ 11.3 17.0 22.7
6″ 14.5 21.8 29.5
8″ 20.5 30.7 41.0
10″ 28.0 42.0 56.0
12″ 36.8 55.2 73.5
14″ 48.3 72.4 96.5
16″ 60.5 90.7 120.5
18″ 74.4 111.6 148.0
20″ 89.9 134.9 179.5
24″ 114.0 171.0 228.0
30″ 162.0 243.0 324.0
36″ 212.0 318.0 424.0
42″ 274.0 411.0 548.0
48″ 352.0 528.0 704.0
90-degree Elbow Weight Chart (in lbs)
Nominal Pipe Size (NPS) Schedule 40 Schedule 80 Schedule 160
1/2″ 0.7 1.0 1.4
3/4″ 1.0 1.4 2.0
1″ 1.3 1.9 2.6
1 1/4″ 1.6 2.4 3.3
1 1/2″ 2.1 3.0 4.0
2″ 2.9 4.4 5.9
2 1/2″ 4.5 6.8 9.1
3″ 6.5 9.7 12.9
4″ 9.7 14.6 19.5
5″ 12.7 19.0 25.3
6″ 16.5 24.8 33.0
8″ 23.0 34.5 46.0
10″ 31.5 47.3 63.7
12″ 40.9 61.4 81.9
14″ 53.1 79.7 106.0
16″ 66.0 99.0 132.0
18″ 80.7 121.0 160.0
20″ 97.5 146.0 194.0
24″ 123.5 185.0 246.0
30″ 177.0 265.5 354.0
36″ 234.0 351.0 468.0
42″ 304.0 456.0 608.0
48″ 388.0 582.0 776.0
180 Degree Elbow Weight Chart (in lbs)
Nominal Pipe Size (NPS) Schedule 40 Schedule 80 Schedule 160
1/2″ 1.1 1.5 2.0
3/4″ 1.4 2.0 2.8
1″ 1.8 2.7 3.6
1 1/4″ 2.3 3.4 4.5
1 1/2″ 3.0 4.4 5.9
2″ 4.3 6.4 8.5
2 1/2″ 6.7 10.1 13.4
3″ 9.4 14.1 18.7
4″ 14.0 20.9 27.8
5″ 18.5 27.5 36.7
6″ 24.0 35.8 47.8
8″ 33.0 49.5 66.0
10″ 44.5 66.8 89.0
12″ 56.0 84.0 112.0
14″ 71.0 106.5 142.0
16″ 88.0 132.0 176.0
18″ 108.0 162.0 216.0
20″ 128.0 192.0 256.0
24″ 160.0 240.0 320.0
Material Grade
- 304/304L:
- Most widely used grade.
- Excellent corrosion resistance and weldability.
- Applications: General-purpose piping, food and beverage industry.
- 316/316L:
- Enhanced corrosion resistance due to added molybdenum.
- Suitable for marine and highly corrosive environments.
- Applications: Chemical processing, pharmaceutical equipment.
- 321:
- Stabilized with titanium to prevent carbide precipitation.
- Excellent for high-temperature applications.
- Applications: Heat exchangers, aerospace systems.
- 347:
- Stabilized with columbium for improved intergranular corrosion resistance.
- Applications: High-temperature service.
- Duplex 2205:
- High yield strength and excellent resistance to chloride stress corrosion cracking.
- Applications: Offshore oil rigs, seawater systems.
- Super Duplex 2507:
- Exceptional resistance to pitting and crevice corrosion.
- Applications: Aggressive chemical environments, deepwater subsea systems.
- 904L:
- High alloy with excellent resistance to acid attacks.
- Applications: Fertilizer plants, acid processing systems.
- 410/420:
- High strength with moderate corrosion resistance.
- Applications: Wear-resistant piping, industrial processes.
Application
- Oil and Gas Pipelines
- Water Treatment Plants
- Petrochemical
- Construction
- Pressure Vessels
- Phosphate Mining
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