Morrill Industries, Inc.  stocks a large selection of Butt Weld fittings for a standardized method of designing and planning your piping system. We offer a 90° 3R Butt Weld Elbow in many different sizes, in which you can call us for a custom size. 3R means 3 times the radius as the nominal pipe size. Items are available in Carbon Steel, 304/304L, & 316/316L Stainless Steel.