Welder Red Seal · Question
A welder is repairing a crack in a cast iron engine block using the Shielded Metal Arc Welding (SMAW) process. The crack is in a non-critical area and needs to be sealed. Which type of electrode would be most appropriate for this repair?
For welding cast iron, nickel-based electrodes like ENiFe-Cl (nickel-iron) or ENi-Cl (pure nickel) are typically used because they offer good ductility to accom
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Question: A welder is repairing a crack in a cast iron engine block using the Shielded Metal Arc Welding (SMAW) process. The crack is in a non-critical area and needs to be sealed. Which type of electrode would be most appropriate for this repair?
Answer options:
- E6010
- E7018 ✅ ENiFe-Cl (Nickel-Iron)
- E308L-16
Correct answer: ENiFe-Cl (Nickel-Iron)
Explanation: For welding cast iron, nickel-based electrodes like ENiFe-Cl (nickel-iron) or ENi-Cl (pure nickel) are typically used because they offer good ductility to accommodate the weld stresses and prevent cracking in the brittle cast iron. E6010 and E7018 are for carbon steels, and E308L-16 is for stainless steel.
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Question explanations
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