Welder Red Seal · Question
A pipe welder is fabricating a small-diameter pipe assembly with several joints in the 2G (horizontal) and 5G (horizontal rolled) positions. The client specifies high-strength, crack-resistant welds for critical service. Which electrode is best suited for both filling and capping these joints?
E7018 electrodes are low-hydrogen, providing excellent ductility and high tensile strength, with good out-of-position welding characteristics, making them ideal
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Question: A pipe welder is fabricating a small-diameter pipe assembly with several joints in the 2G (horizontal) and 5G (horizontal rolled) positions. The client specifies high-strength, crack-resistant welds for critical service. Which electrode is best suited for both filling and capping these joints?
Answer options:
- E6010
- E6013 ✅ E7018
- E7014
Correct answer: E7018
Explanation: E7018 electrodes are low-hydrogen, providing excellent ductility and high tensile strength, with good out-of-position welding characteristics, making them ideal for critical pipe welding applications where crack resistance and strength are paramount. E6010 is primarily for root passes, and E6013/E7014 are not typically specified for high-strength critical applications.
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Question explanations
- A welder is fabricating a pressure vessel component using FCAW-G with an E70T-1 wire. The procedure specifies
- A welder is preparing to weld 20 mm (0.8 in) thick high-strength low-alloy (HSLA) steel using FCAW-G. The weld
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