Almen Strips : Electronics Inc. (EI) manufactures and maintains the world’s largest inventory of Almen strips for global distribution. EI can provide strips to any specification, from standard MIL to rigid aerospace specifications. Almen “A”, “N” or “C” strips in Grades 3™, 2™, 1™ and 1-S™ are ready-to-use and are pre-qualified. Our “A” and “N” Almen strips have the lot number printed on both sides and a patented coverage check finish. These features add value to a quality shot peening process.
The Double-Sided Numbering System
Ensures that the lot number is legible after peening
Provides room for notes; for example, print numbers, procedure numbers, the date and the arc height reading
Gives a tracking method for meeting specifications, ISO and Nadcap audit requirements, and first-in, first-out requirements
Allows lot-to-lot comparison for process consistency
Part of Electronics Inc.’s comprehensive traceability and audit program
Denotes genuine EI product
Both “A” and “N” strips have the Double-Sided Numbering System
The Coverage Check Finish (U.S. Patent No. 6,568,239)
Lapses in coverage are easy to check visually
Contributes to a proper rotary-flap peening technique
Enhances capabilities of coverage checker tools
Both “A” and “N” strips have the Coverage Check Finish
*Grades 3, 2, 1 and 1S are trademarks of Electronics Inc
Almen Strips are classified into 3 types: 'A', 'N', and 'C'. They differ in their thickness, while they have the same width and length.
Almen strip of "A" type is predominantly used for shot peening with cast shot or cut wire shot.
"N" type strips are used usually for glass bead peen and ceramic bead peen.
"C" type almen strips are used more rarely and are thicker than the other types.