ER5356 is a stiffer wire and is used when higher strength weld properties are needed. Use a stainless steel wire brush to clean the aluminium before welding, this will help to remove the oxide layer.

Alloy 5356 is the most widely used aluminium filler alloy and can be classified as a general purpose, non-heat treatable alloy. It is typically chosen because of its relatively high shear strength,
mostly due to magnesium, which is the primary alloying element.

The 5xxx alloy base material, when welded with 5356, with weld pool chemistry greater than 3% magnesium and service temperatures in excess of 65°C, is susceptible to stress corrosion
cracking (SCC). Due to the magnesium addition, it does produce weld smut (an aluminium/magnesium deposit) along the weld, which can be cosmetically unappealing. The presence of
weld smut does not degrade the integrity of the weld. 

Actual Spool weight is 2kg on a standard 5kg spool. Reduced weight due to aluminium being lighter. 

Available in the following 5kg spools: 1.0mm