Aerospace Material Specification 4245 is composed of aluminum alloy C355 welding wire in gas-tungsten-arc (GTAW) and gas-metal-arc (GMAW) welding. Contains a low amount of iron to create higher tensile properties. Designed for joining and repairing. This alloy is an Aluminum-Copper-Silicon alloy used for casting alloys made of similar composition.
Available in multiple diameters and sizes in straight length wire and in spools.
SI Fe Mn Cu Zn Mg Al Ti Other impurity Other element
4.5-5.5 0.20 0.10 1.0-1.5 0.10 0.40-0.60 Bal 0.10-0.20 0.05 0.15