Pipe Fittings Dimensions & Materials: ASME B16.9, B16.11 Tables and Grades (2026)

ASME B16.9 butt-weld fitting dimensions diagram showing elbow centre-to-end A, tee dimensions C and M, reducer length H and cap length E

Pipe fittings dimensions and materials explained: NPS/DN/OD and schedule tables, ASME B16.9-2024 centre-to-end dimensions and tolerances, B16.11 forged classes, matching ASTM grades, marking and a printable inspection checklist, plus an interactive dimension finder.

What Is a Pipe and Pipe Class? Complete Engineering Guide (ASME B31.3)

Pipe class explained – pipe class A1B and line number 6"-P-1001-A1B-H, Aienginear guide

A pipe carries fluid; a pipe class is the specification that fixes every approved component for one service. This 2026 guide covers schedules, B31.3 wall thickness, B16.5 ratings, a sample A1B class sheet and branch table.