6351 aluminum alloy is a stronger one among the 6 series alloys. Its strength is higher than that of 6061 alloy and slightly lower than that of 6082 alloy. For example, 6351-T6 profile requires a minimum tensile strength of 295Mpa and good extrusion formability.
6351 aluminum alloy is mostly used for Extruded structural materials for highway transportation facilities require gas, oil, and water pipelines with high material strength.