The first EJMA Standards were published in out of a clear need for standardization in a growing industry. The initial edition, by necessity, was brief and covered only applications involving axial movement. However, as the association's members conducted more extensive research and catalogued testing results, more detailed design data was incorporated. This iterative process has continued for decades, with each new edition reflecting the state of the art. This is why the standard you might find referenced as "Ejma Standard.pdf" is likely a very old, superseded version. The standard has been significantly revised and expanded through subsequent editions, culminating in the modern, digitally-native versions available today.
| Year | Impact Factor | | :--- | :--- | | 2020 | 1.567 | | 2021 | 1.87 | | 2022 | 2.1 | | 2023 | 1.8 | | 2024 | 1.7 | Ejma Standard.pdf
The "EJMA Standard" is far more than a simple PDF file; it is the result of over six decades of dedicated collaboration, research, and engineering excellence by the world's leading expansion joint manufacturers. It is the cornerstone of safe and reliable piping system design. The first EJMA Standards were published in out
The Expansion Joint Manufacturers Association (EJMA) Standards provide essential formulas and guidelines for designing, manufacturing, and testing metallic bellows expansion joints to ensure piping system safety [1]. These standards, critical for compliance with codes like ASME B31.3, cover fatigue life evaluation, material selection, and structural integrity under pressure and temperature [1]. For comprehensive engineering requirements and to purchase the official standards, visit the EJMA website. This iterative process has continued for decades, with
The APC structure depends on the submission date and the type of article:
The EJMA (Expansion Joint Manufacturers Association) Standard serves as the premier global authority for the design, application, and installation of metallic bellows expansion joints. Currently in its 11th edition, the standard provides critical technical guidelines for stress calculations (including hoop and meridional bending) and fatigue life expectancy. For more information, visit EJMA Standards EJMA Standards