AWS A5.10-12
ER 4009
AMS 4245
AMS 4215
UNS A03550
USWC 4245(C)


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.

                                                                                             Chemical Composition:

SIFeMnCuZnMgAlTiOther impurityOther element
Note: Single values are maximum unless otherwise noted.

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c355, ams 4245 data sheet