180° Carbon Steel Elbow Long Radius And Short Radius Seamless/Welded Elbow
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.
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Product Introduction
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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 |
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| Wall Thickness | SCH5-STD-SCH XXS etc | |
| Outside Diameter |
1/2''-48''(Butt welding, seamless) 16''~110''(welding) |
- LR/SR Elbow BW180°
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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 |
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550 |
22 |
559.0 |
1676 1829 |
1118 1219 |
1118 1219 |
838 914 |
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