ESAB Knowledge center

Should I use 4043 or 5356 filler alloy?

March 26, 2014

As a basic description we can say that 4043 is an aluminum filler alloy with 5% silicon added and that 5356 is an aluminum filler alloy with 5% magnesium added. There are some misconceptions within the industry that you can successfully weld any aluminum base alloy with either 4043 or 5356 filler alloy. I must start by saying that this is not the case. However, there are many common structural aluminum base alloys that can be welded with either 4043 or 5356. One such alloy is 6061.

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Posted in Aluminum Welding , Tagged with GTAW, Heliarc, TIG



Storage and Preparation of Aluminum Base Alloys and Filler Alloys

March 26, 2014

I have worked for many years in the welding fabrication of carbon steel, and I am moving into the welding fabrication of Aluminum. I have heard that the storage and preparation for aluminum base alloys and filler alloys are different. What are the differences, and how can they affect the quality of my welding?

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Posted in Aluminum Welding , Tagged with GTAW, Heliarc, TIG



The most suitable filler alloy for 6061-T6 component operating at 250 deg F

March 26, 2014

I am looking for some assistance with the selection of the most suitable filler alloy for a particular GMAW welded aluminum structure. Application: Structural component used for material handling manufactured from 6061-T6 in material thicknesses of 1/8 to 1/2 inch.

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Posted in Aluminum Welding , Tagged with GTAW, Heliarc, TIG



What is the best filler alloy for 5083 base alloy?

March 26, 2014

I have a situation were my customer is experiencing failures in their guided bend tests. The Base Metal is 5083 and the filler alloy is ER5556. The test plate is a 5mm thick single groove weld with a 70 degree included angle, no root gap and a 2mm nose. The weld is back gouged and welded from the second side. We are not sure if we are using the correct filler wire; our welding equipment supplier has suggested that we change to an ER5356 type wire. What is your professional advice on this issue?

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Posted in Aluminum Welding , Tagged with GTAW, Heliarc, TIG



What are the advantages of 4047 filler alloy?

March 26, 2014

I have been informed that there is a filler alloy (4047) that can sometimes be used in lieu of the commonly used filler alloy 4043. What are the advantages of using the 4047 filler alloy and when would it make sense to substitute it for filler alloy 4043.

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Posted in Aluminum Welding , Tagged with GTAW, Heliarc, TIG



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