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. D | 90 deg LR Center-to-End A | 45 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 D | ASME 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
