Haynes HR-160 description: HAYNES HR-160 RTW filler metal is used for the gas metal arc and gas tungsten arc welding of HAYNES HR-160 alloy. The alloy has outstanding resistance to high temperature corrosion, including sulfi dation and chloride attack in reducing and oxidizing atmospheres. The alloy also is a great candidate for thermal spray applications where resistance to high temperature abrasion and corrosion are required.