Crossword clues for Welding gas 5 lettersAnswerClueARGONWelding gasARGONNoble gas used in weldingARGONInert gas used in weldingARGONGas used in arc weldingALKYNEWelding gasACETYLENEWelding gasETHENEWelding gasETHYNEFlammable gas used in weldingACETYLENEGas used in welding.