Pure Copper sintered metal powder filters is stocked to ISO 4022. The alloy provides good atmospheric resistance with a stable patina; outstanding conductivity and is non-magnetic; the practical service limit is approx. +200 °C. Property data, alloy comparison and the specification table follow.
Why Choose Pure Copper for Sintered Metal Powder Filters
The EMI/RFI shielding and Faraday-cage mesh material. For sintered metal powder filters, this matters when good atmospheric resistance with a stable patina; outstanding conductivity is the controlling requirement.
Alloy Properties
| Grade designation | C11000 |
|---|---|
| Magnetic response | Non-magnetic |
| Service temperature | approx. +200 °C |
| Corrosion characteristic | Good atmospheric resistance with a stable patina; outstanding conductivity |
Corrosion Behavior in Filtration Service
Copper and brass sintered metal powder filters 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 Sintered Metal Powder Filters Available in Pure Copper
| Micron rating (u00b5m) | Thickness (mm) | Form | Available shapes | Reference standard |
|---|---|---|---|---|
| 0.5 | 1.5-3.0 | Powder | Disc / cup / tube / sheet | ISO 4022 |
| 2 | 1.5-3.0 | Powder | Disc / cup / tube / sheet | ISO 4022 |
| 10 | 1.5-3.0 | Powder | Disc / cup / tube / sheet | ISO 4022 |
| 40 | 2.0-3.0 | Powder | Disc / cup / tube / sheet | ISO 4022 |
| 100 | 2.0-3.0 | Powder | Disc / cup / tube / sheet | ISO 4022 |