The 30 mesh specification of phosphor bronze wire mesh is defined by ASTM E2016 / ISO 9044. The tables below reproduce the standard row — wire diameter, aperture and open area — and convert the count to a micron rating for filtration selection. The technical drawing redraws to the values selected.
30 Mesh Specification Row (ASTM E2016 / ISO 9044)
| Mesh count | Wire diameter (mm) | Aperture (mm) | Micron rating (u00b5m) | Open area (%) | Alloy |
|---|---|---|---|---|---|
| 30-Mesh | 0.300 | 0.547 | 547 | 41.7 | CuSn6 (C51900) |
30 Mesh to Micron & Aperture
| Openings per inch | 30 |
|---|---|
| Aperture (opening width) | 0.55 mm |
| Micron rating | 547 µm |
| Standard wire diameter | 0.3 mm |
| Open area | 41.6 % |
Aperture = (25.4 mm ÷ mesh count) − wire diameter. The micron rating equals the aperture in micrometres; actual retention also depends on particle shape and cake formation.
Wire Diameter Options at 30 Mesh
| Option | Wire dia | Aperture | Micron | Open area | Weight (SS) |
|---|---|---|---|---|---|
| Heavy wire | 0.390 mm | 0.457 mm | 457 µm | 29.1 % | 2.35 kg/m² |
| Standard wire | 0.300 mm | 0.547 mm | 547 µm | 41.7 % | 1.39 kg/m² |
| Fine wire | 0.225 mm | 0.622 mm | 622 µm | 53.9 % | 0.78 kg/m² |
Heavier wire adds strength and abrasion life but closes the aperture; finer wire opens the aperture and raises throughput at the cost of durability. Specify mesh count AND wire diameter to fix the aperture unambiguously.
Open Area & Flow at 30 Mesh
The standard 30 mesh weave presents an open area of about 41.6%. At this count the mesh presents little flow resistance; selection is normally driven by particle retention and mechanical strength rather than pressure drop.
30 Mesh Cloth Weight
Standard 30 mesh stainless cloth weighs approximately 1.39 kg/m² (density 7.93 g/cm³ basis; brass and copper weave roughly 10% heavier, aluminum about one third). Use this figure for roll handling and freight estimation.
Typical Applications for 30 Mesh Phosphor Bronze Wire Mesh
30 mesh phosphor bronze wire mesh is commonly specified for general straining and sieving, paint and coating filtration, grease filters, insect screening, grain cleaning and pre-filtration ahead of fine media.
Plain, Twill or Dutch Weave at This Rating?
Plain square weave is the standard at this count: every opening is a true square of the stated aperture, retention is absolute for hard spherical particles, and the cloth is easy to clean.
What Phosphor Bronze Wire Mesh Does
Screening and filtering in marine, fuel and fatigue-loaded duties where tin-bronze cloth outlasts brass and stays non-magnetic.
Fitting & Care
- Back fine bronze cloth with a coarser support mesh when used against pressure.
- Rinse sea-water strainers with fresh water during maintenance to slow fouling.
