Corrosion behavior of Hydro long-life alloys
Materials and processing for high-performance applications
| Seam welded tubes |
|
 |
 |
| Hydro long-life alloy HA3905-G after 20 days SWAAT |
EN AW-3003 after 5 days SWAAT |
| <br> |
|
| Fins |
|
 |
 |
| Hydro long-life alloy HA3980-N after 20 days SWAAT |
EN AW-3003 +1.5% Zn after 20 days SWAAT |
For the manufacture of brazed automotive heat exchangers, we supply a whole range of brazing alloys and core alloys, which are tailored to individual customer requirements for all customary brazing processes.
Beside the standard alloys, Hydro has developed special "long-life alloys" combining high strength after brazing with excellent corrosion resistance.
As an example, longitudinally seam-welded tubes and finstock made from Hydro long-life alloys display outstanding service life in corrosion tests such as SWAAT.
In comparison to conventional alloys, such as EN AW-3003, the service life of these alloys is up to 10 times longer.
Material data sheet HA 3905-G
Material data sheet HA 3917-J
Material data sheet HA 3968-K
Material data sheet HA 3980-N
