Alloy 6013 has been developed as a better alternative to 6262 and 6061 alloys commonly used in ABS pistons and valve blocks. The combination of magnesium, silicon and copper additions result in a harder matrix which results in better machinability and higher mechanical properties. This product is available in screw machine stock form, along with selected cold-finished squares and rectangles. It is also available in impact stock.This alloys offers better machinability as compared to 6061 and similar machinability to 6262. Superior strength, fatigue, and creep resistance is seen as compared to both alloys. Information is given on structure, development of the alloy, and current applications. Also, a summary of properties listed above is presented.