Cadmium fumes are released from welding which type of material?

• A. Cold rolled steel
• B. Hot rolled steel
• C. Stainless steel
• D. Aluminum

Answer: (C)

Cadmium fumes appear when you weld material that contains cadmium, such as cadmium-coated or cadmium-bearing components. Some stainless steels are used with cadmium-containing coatings or alloys, so welding them can release cadmium fumes. The other options—plain carbon steels and aluminum—do not typically include cadmium in their base metal or common coatings, so they don’t produce cadmium fumes in normal welding. That’s why stainless steel is the correct choice.