Union AlSi 7 Mg

Solid wire for GMAW of AlCu alloys. Provides higher strength and better ductility than AlSi filler alloys when welding AlCu alloys. Superior resistance to stress corrosion cracking where high-temperature properties are required. Thorough cleaning of the workpiece bevels is necessary prior to welding.

Zirconium micro-alloyed aluminium wire. The weld metal is uncritical in terms of hot cracks. Suitable especially for complicated welding constructions with critical tensions. Base material
should be cleaned near the seam. Pre-heating 150°C for plates > 15 mm.

Is used for aluminium-silicium casting alloy with a Si-content up to 12%. Good mechanical characteristics, excellent corrosion resistance and a low melting point ensure high-quality welding results.

UTP 485 is an aluminium stick electrode with 5% Si and a special coating. It is suitable for joining and surfacing AlSi alloys with a Si content of up to 7% and for dissimilar joints of different Al-alloys, such as:

3.3206 AlMgSi 0.5 - 3.2371 G-AlSi 7 Mg
3.3210 AlMgSi 0.7 - 3.2341 G-AlSi 5 Mg
3.2315 AlMgSi 1 - 3.2151 G-AlSi 6 Cu 4
3.3211 AlMg 1 SiCu

UTP 485 is suitable for welding plates of wall thicknesses> 2 mm. The soft arc produces a fl at, fi newly-rippled weld seam. Easy slag removal.