Alloy 6061 plate and sheet are intended for use where good strength and workability are required. For airframe applications alloy 6061 is considered an inherently corrosion-resistant alloy. Welding of alloy 6061 may require special precautions to avoid unsatisfactory properties in weld and heat-affected zones of welded joints. Welding of alloy 6061 is not acceptable to NAVFAC or NAVSEA as a method of joining.