1050 sheet and 1100 filler

[Cheesie]

Got a job coming up I've been using 5356 filler on most things haven't had a problem yet,but looking a little further i should maybe be using 1050 filler,
local supplier recommends using 1100 filler

 

[500e]

Alloy 5356 Aluminium Welding 5356

To contact anyone in the team call 01494 484844 or email sales@aircraftmaterials.com
We have dealt with them good firm

 

[Cheesie]

Thanks Brad I got a chart of hobart,
I've found old posts on here that says to use 1050 filler which made me a little nervous,
I use 5356 for most except cast but going by hobart and as you've posted 1100 filler is best suited for the 1xxx series, sheet, I've been using 5356 to weld my fittings which are normally 6 series to 1050 again never had a problem but reading through old posts here 4043 is best,

 

[Cheesie]

You'll just find the 5356 is stronger than the 1050 so you can end up with a harder zone, for tanks that vibrate/expand this can have a greater propensity for cracking.

All standard alloys have a crack sensitivity depending on level of silicon and mangnesium.

This is due to the formation of excess levels of Mg2Si (Magnesium Silicates).

Hence some welds on certain alloys crack on cooling. Hot shortness.

Thanks Brad I've done a bit more reading on it I've just been going with the flow, I've a marine tank to do and a radiator to fab, this is what's caused me to look into it more