ASME B16.9 — butt-weld elbows, NPS 1/2 through 24. Short radius available NPS 2 and larger. 45° short radius elbows are not standardized in ASME B16.9 — values shown use a 1 x nominal-diameter radius.
All dimensions in mm (inches in brackets). A = center-to-end. Per ASME B16.9, 90° short radius elbows are produced in NPS 2 through 24 only; 45° short radius elbows are not covered by the standard (1 x nominal-diameter radius).