6061 T6 Aluminum tread plate is a heat treatable 6000 series aluminum alloy. It is an alloy that has been formed with silicon and magnesium. It is one of the most versatile alloys and offers a wide range of mechanical properties. It has a lower strength than other comparable aluminums, With medium to high strength, good toughness and a good surface finish, it maintains most of the good qualities of aluminum. Welded by all methods and can be furnace brazed. 6061 T6 aluminum tread plate has an ultimate tensile strength of at least 42,000 psi, yield strength of at least 35,000 psi and ultimate shear strength of 27,000 psi.