Shielding Gasses Sample Clauses

Shielding Gasses. Shielding gasses used in the gas tungsten arc welding of stainless steel shall be either argon, helium, or an argon-helium mixture. Shielding gasses used in the gas metal arc welding of stainless steel shall be an argon-oxygen mixture consisting of argon plus 1 to 5 percent oxygen. All shielding gasses shall flow from the electrode holder and any trailing cup at a rate sufficient to protect the weld from atmospheric contamination.