Dimensions Butt Weld Elbows 45°-90° LR & 3D, Elbows 90°-SR, 180° LR & SR according to ASME B16.9 NPS O.D.D 90° Long Radius Center-to-End  A 45°Long Radius Center-to-EndB 90° 3D Center-to-EndA 45°3D Center-to-EndB 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