C6161 is a material with high strength and excellent wear resistance and corrosion resistance, and is used for shafts, bushes, gear pinions, etc. On vehicles, engines, ships, etc. C6161 as a bar is the alloy with the lowest Al content of 7 to 10% between aluminum bronze and copper with a high proportion. In addition, the main components are manganese, nickel, and iron, while Pb (lead) contains 0.02%. This is a type of aluminum bronze (ABx1), which is the old name. There are standards for plate material and bar material.