Asme B1864 Pdf Jun 2026

is the American Society of Mechanical Engineers standard that specifies dimensions, tolerances, markings, and related requirements for butt-weld fittings of cast stainless steels (commonly used in piping systems). It covers types, sizes, material grades, wall thicknesses, and inspection/identification practices to ensure compatibility and safe welding/assembly in pressure piping.

: Covers flat countersunk (82° and 100°), oval, pan, fillister, hex, and truss heads. Some styles, like the Truss Head asme b1864 pdf

: The 1998 edition, reaffirmed in 2005, is the most commonly referenced standalone PDF. The American Society of Mechanical Engineers - ASME What is Inside the Standard? is the American Society of Mechanical Engineers standard

: Includes slotted and recessed head tapping screws, as well as metallic drive screws recognized as "American National Standard". and truss heads. Some styles