ASTM F1267 covers the requirements for standard (raised) expanded metal. Reproduced below: the complete specification table, the tolerance classes, and the companion and equivalent standards referenced when ordering to this document.
ASTM F1267 — Scope
ASTM F1267 specifies the designation system, dimensions and tolerances of standard (raised) expanded metal — mesh count or nominal opening, wire diameter and the permissible aperture deviations. Alloy chemistry, mechanical testing and delivery condition are governed by separate documents in the same standards family.
Tolerance Classes
ASTM F1267 defines tolerance limits on the average aperture and on the maximum single aperture, tightening as the aperture gets finer. For test-sieve duty the tighter ISO 3310-1 tolerances apply instead of the general cloth tolerances — specify sieve grade explicitly if the mesh will be used for particle-size analysis.
Specifications Defined by ASTM F1267
| Mesh designation (SWD x LWD) | SWD (mm) | LWD (mm) | Strand width (mm) | Strand thickness (mm) | Open area (%) |
|---|---|---|---|---|---|
| 6x12 | 6 | 12 | 1.0 | 1.0 | 62 |
| 10x20 | 10 | 20 | 1.5 | 1.5 | 66 |
| 12.5x25 | 12.5 | 25 | 2.0 | 2.0 | 60 |
| 16x34 | 16 | 34 | 2.0 | 2.0 | 70 |
| 22x50 | 22 | 50 | 3.0 | 3.0 | 67 |
| 30x60 | 30 | 60 | 3.5 | 3.0 | 72 |
| 50x100 | 50 | 100 | 5.0 | 4.0 | 75 |
Equivalent Standards
Where direct equivalents exist (ISO ↔ ASTM ↔ DIN), they are listed on the parent Standard (Raised) Expanded Metal page. Confirm against the specification table on this page — nominally equivalent documents can differ in tolerance limits.
Companion Standards
ASTM F1267 controls the geometry of standard (raised) expanded metal. Companions frequently cited alongside it: ISO 565 / ASTM E11 (test-sieve aperture series), ISO 3310-1 (test sieves of metal wire cloth), ISO 4783 (selection of wire and aperture combinations), ISO 9044 (industrial woven wire cloth), and ISO 2941 (collapse/burst rating for finished filter elements).
