The aluminum alloy used to make aluminum 6061 T6 Round Bar is well-known for its high heat capabilities and resistance to oxidation. One of the top producers and suppliers of aluminum 6061 T6 round bars, among other kinds, is Siddhgiri Tubes. Aluminum, chromium, titanium, magnesium, manganese, zinc, copper, iron, and silicon make up the substance. There are other trace elements.