Specifications ASTM A403 / ASME SA403 Dimensions ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 Size 1/8â?? NB TO 48â?? NB. (Seamless & 100% X-Ray Welded, Fabricated) Type Seamless / Welded / Fabricated Bending Radius R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom Thickness Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS