Welder Red Seal · Question
A welder is preparing to weld two plates of 6061-T6 aluminum using the Gas Metal Arc Welding (GMAW) process. What type of filler metal is generally recommended for this application?
For welding 6061-T6 aluminum, ER4043 is a commonly recommended filler wire because it offers good crack resistance and ductility. ER5356 is also suitable, espec
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Question: A welder is preparing to weld two plates of 6061-T6 aluminum using the Gas Metal Arc Welding (GMAW) process. What type of filler metal is generally recommended for this application?
Answer options: ✅ ER4043
- ER5356
- ER308L
- E70S-6
Correct answer: ER4043
Explanation: For welding 6061-T6 aluminum, ER4043 is a commonly recommended filler wire because it offers good crack resistance and ductility. ER5356 is also suitable, especially when higher strength or colour match after anodizing is required, but ER4043 is a general-purpose choice. ER308L is for stainless steel, and E70S-6 is for carbon steel.
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