For security screen mesh in Brass, the controlling selection factors are the media being filtered, the cleaning regime and the service temperature. The grade data for Brass is summarized below together with every specification supplied.
Why Choose Brass for Security Screen Mesh
The decorative and spark-resistant screening alloy. For security screen mesh, this matters when good atmospheric and fresh-water resistance; unsuitable for ammonia service is the controlling requirement.
Alloy Properties
| Grade designation | H65 / CuZn35 |
|---|---|
| Magnetic response | Non-magnetic |
| Service temperature | approx. +200 °C |
| Corrosion characteristic | Good atmospheric and fresh-water resistance; unsuitable for ammonia service |
Corrosion Behavior in Filtration Service
Copper and brass security screen mesh resist atmospheric corrosion and fresh water well, tarnishing to a stable patina. Avoid ammonia and ammonium compounds (stress-corrosion cracking of brass) and strong oxidizing acids. In marine service, phosphor bronze outperforms plain brass.
Comparable Alloys
Within the copper family: brass for economy and appearance, phosphor bronze for fatigue strength and marine air, pure copper where conductivity (EMI shielding) is the point. For structural filtration duties, stainless 304/316 is the usual alternative.
Specifications of Security Screen Mesh Available in Brass
| Mesh count | Wire diameter (mm) | Aperture (mm) | Micron rating (u00b5m) | Open area (%) | Weight SS (kg/mu00b2) | Reference standard |
|---|---|---|---|---|---|---|
| 11-Mesh | 0.80 | 1.51 | 1509 | 42.7 | u2014 | SS316 marine grade |
| 12-Mesh | 0.80 | 1.32 | 1317 | 38.7 | u2014 | SS316 marine grade |
