A high strength Mg free tube alloy suited for controlled atmosphere brazing.
Standard process capabilities: width 10-1400mm; thickness 0.050-3.18mm
Elongation A50 A50
8 % at 20 °C
Tensile strength Rm
160 - 220 MPa at 20 °C
Yield strength Rp0.2 Rp0.2
160 MPa at 20 °C
1.2 - 1.6 %
0.4 - 0.7 %
0.4 - 0.8 %
0.1 - 0.5 %
Corrosion potential after brazing -690 mV vs SCE
The FA7929 alloy is designed as a high strength alloy with good corrosion resistance suitable for welded or folded tubes. In combination with suitable n-, header- and side plate alloys this material provides substantial down-gauging opportunities based on its high post braze strength. Furthermore, this product enables easy handling in the heat exchanger production process due to its good formability and outstanding brazeability. The product performance can be further adjusted by adding a sacrificial alloy on the waterside to improve the corrosion resistance.
This material data has been provided by Gränges.