Beijing Hownew Energy Technology Group Co., Ltd
Hownew Energy Technology Group Co., Ltd.
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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) |
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 |
22 |
559.0 | 1676 1829 | 1118 1219 | 1118 1219 | 838 914 |