Forged Fittings, Socket-Welding and Threaded
Purpose and Scope of ASME B16.11-2021
ASME B16.11, Forged Fittings, Socket-Welding and Threaded, is part of the ASME B16 series of standards and applies specifically to small-bore, high-pressure fittings manufactured from forged materials. The term "forged" indicates that these fittings possess superior strength, making them suitable for the most severe service conditions encountered in industrial piping.
The standard ensures uniformity and high reliability for fittings used primarily in sizes from NPS 1/8 through NPS 4 (DN 6 through DN 100). It covers:
The standard does not cover the actual installation welding requirements; those must be found in the applicable ASME Piping Code (like B31.3) governing the piping system.
Application and Use
ASME B16.11 fittings are the primary choice for connections in auxiliary piping, instrument lines, and small-bore lines in high-pressure or high-temperature service where leakage resistance is critical. It is used by:
The standard provides the high-quality components necessary for critical connections in severe-service piping, complementing the high-integrity design requirements of the ASME Boiler and Pressure Vessel Code and B31 Piping Codes.
| SDO | ASME: American Society of Mechanical Engineers |
| Document Number | B16.11 |
| Publication Date | Sept. 19, 2022 |
| Language | en - English |
| Page Count | 34 |
| Revision Level | |
| Supercedes | |
| Committee |