Aluminum Filler Classification

Date 01-24-2008 00:48

Can somebody point me in the right direction in understanding the electrode classifications for aluminum. ER4043, etc. I know the E is electrode and the R is rod. But I can't find a good explanation of the numbers. I know the first number is the alloy that is in the aluminum. 4 = silicon but I don't understand the other numbers. Thanks

By ssbn727 (*****)

Date 01-24-2008 10:22

Hi Scweld!

Welcome to the forum!!!

Here's a link that will definitely help you find the answers to your questionsregarding Aluminum:

http://www.alcotec.com/us/en/education/knowledge/index.cfm

Here's another one on Alloy data and another one with an alloy selection chart:

http://www.alcotec.com/us/en/support/Alloy-Data-Sheets.cfm

http://www.alcotec.com/us/en/support/Alloy-Selection-Chart.cfm

Hope this helps.

Rspectfully,
Henry

By swnorris (****)

Date 01-24-2008 14:08

2 = copper
3 = manganese
5 = magnesium
6 = magnesium and silicon
7 = zinc
8 = other elements
9 = not used

By 803056

Date 01-25-2008 03:20

Try AWS A5.10 Specification for Bare Aluminum Filler Metal (the exact title is most likely different from what I wrote, but close enough) for the chemistry of the filler metal.

You can also contact the Aluminum Association for additional information about their alloy numbering system.

Best regards - Al

By Milton Gravitt (***)

Date 01-25-2008 20:36

AWS A5.10/A5.10M:1999 Specification for Bare Aluminium and Aluminium-Alloy Welding Electrodes and Rods maybe this will help.