3004 aluminium alloy is an alloy in the wrought aluminium-manganese family (3000 or 3xxx series). It is similar to the 3003 alloy, except for the addition of approximately 1% magnesium. It can be cold worked (but not, unlike some other types of aluminium alloys, heat treated) to produce tempers with a higher strength but a lower ductility. Like most other aluminium-manganese alloys, 3003 is a general-purpose alloy with moderate strength, good workability, and good corrosion resistance. It is commonly rolled and extruded, but typically not forged. As a wrought alloy, it is not used in casting.

The machinability of 3004 aluminum is considered to be excellent, especially in the hard temper. As is typical of the aluminum alloys an oil lubricant should be used for machining, although light cuts may be done dry.

3003 Aluminum Alloy contains Manganese as its major alloying element. 3003 Aluminum is an alloy with very good corrosion resistance and moderate strength. It is not heat treatable and develops strengthening from cold working only. 3003 Aluminum Alloy has good machinability and welding is readily accomplished by means of conventional welding methods. Commonly used in chemical equipment, ductwork, and in general sheet metal work. 3003 Aluminum is typically used in stampings and the manufacturing of pressure vessels, builder’s hardware, garage doors, awning slats, refrigerator panels, gas lines, gasoline tanks, heat exchangers, drawn and spun parts, and storage tanks. All of our 3003 Aluminum Sheet is protected on one side with a protective vinyl film.