Based on the curvature radius of carbon steel elbows, they can be divided into long radius elbows and short radius elbows. A long radius elbow means its curvature radius is equal to 1.5 times the outer diameter of the pipe, i.e., R=1.5D. A short radius elbow means its curvature radius is equal to the outer diameter of the pipe, i.e., R=1.0D. (D represents the diameter of the elbow, and R represents the curvature radius. D can also be expressed in multiples.)
When classified by pressure rating, there are approximately seventeen types, which are the same as the American pipe standards. These include: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS, Sch80, Sch100, Sch120, Sch140, Sch160, and XXS, with STD and XS being the most commonly used.
According to the angle of the elbow, there are 45° elbows, 90° elbows, and 180° elbows.
| Product Introduction | Material | 20#,20G,ASTM A105,ASTM A234 WPB,ASTM A860 WPHY42,ASTM A860 WPHY46,ASTM A860 WPHY52,ASTM A860 WPHY56,ASTM A860 WPHY60,ASTM A860 WPHY65,ASTM A860 WPHY70,ASTM A420 WPL3,ASTM A420 WPL6 etc. |
| Manufacturing Standards | ASME/ANSI B16.9 MSS-SP-43 JIS B2311/2220 DIN2615/2616/2617 ISO 3419,ISO 5251 |
| Wall Thickness | SCH5-STD-SCH XXS etc |
| Outside Diameter | 1/2''-48''(Butt welding, seamless) 16''~110''(welding) |
- LR/SR Elbow BW180°
ASME B16.9
| Nominal Size | Outside Diameter at Bevel | Center to Center | Back to Face |
| 180°Returns |
| DN | NPS | OD | O | K |
| LR | SR | LR | SR |
15
20
25 | 1/2
3/4
1 | 21.3
26.7
33.4 | 76
76
76 | 51 | 48
51
56 | 41 |
32
40
50 | 1 1/4
1 1/2
2 | 42.2
48.3
60.3 | 95
114
152 | 64
76
102 | 70
83
106 | 52
62
81 |
65
80
90
100 | 2 1/2
3
3 1/2
4 | 73.0
88.9
101.6
114.3 | 190
229
267
305 | 127
152
178
203 | 132
159
184
210 | 100
121
140
159 |
125
150
200 | 5
6
8 | 141.3
168.3
219.1 | 381
457
610 | 254
305
406 | 262
313
414 | 197
237
313 |
250
300
350 | 10
12
14 | 273.0
323.8
355.6 | 762
914
1067 | 508
609
711 | 518
619
711 | 391
467
533 |
400
450
500 | 16
18
20 | 406.4
457.0
508.0 | 1219
1372
1524 | 813
914
1016 | 813
914
1016 | 610
686
762 |
| 550
600
650 | 22
24
26 | 559.0
610.0
660.0 | 1676
1829 | 1118
1219 | 1118
1219 | 838
914 |
Product Tags:
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180° Carbon Steel Elbow Long Radius And Short Radius Seamless/Welded Elbow Images
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