Elbow 90 Degree Long Radius Sch 40, sch 80 Butt Welded, Threaded, Socket Weld, Carbon Steel ASTM A234 WPB, Galvanis, Stainless Steel ASTM A403 WP304 / WP304L, ASTM A403 WP316 / WP316L, Zinc Plated and Hot Dip galvanized Standard ASME B16.9 Size 1/2 inch - 48 inch