Welder Red Seal · Question
A welder is joining two pieces of 304L stainless steel using the Gas Tungsten Arc Welding (GTAW) process. The application requires excellent corrosion resistance in a corrosive chemical environment. Which of the following filler metals would be most appropriate?
For welding 304L stainless steel, ER308L is the most appropriate filler metal as it matches the base metal's composition, providing similar corrosion resistance
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Question: A welder is joining two pieces of 304L stainless steel using the Gas Tungsten Arc Welding (GTAW) process. The application requires excellent corrosion resistance in a corrosive chemical environment. Which of the following filler metals would be most appropriate?
Answer options: ✅ ER308L
- ER309LMo
- ER4043
- E316L-16
Correct answer: ER308L
Explanation: For welding 304L stainless steel, ER308L is the most appropriate filler metal as it matches the base metal's composition, providing similar corrosion resistance and mechanical properties. ER309LMo is used for dissimilar joints or higher strength, ER4043 is an aluminum filler metal, and E316L-16 is used for 316L stainless steel, offering higher resistance to pitting corrosion due to molybdenum.
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