6061 / 6061-T6511 Aluminum
Alloy 6061 is a heat-treatable aluminum alloy. It is known for its excellent strength and corrosion resistance. Alloy 6061 is a more machinable aluminum and is the workhorse of heat-treated alloys. It is often used in various structural and fabrication applications. It is worth noting that long-term exposure to outside elements without painting or applying a clear coat finish will result in the material oxidizing (developing a white chalky surface).
Alloy 6061-T6511 is essentially the same as 6061-T651. The "T6511" designation is often used to indicate that the material meets specific industry standards for flatness and straightness. For extruded rod and bar shapes, the T6511 temper is also stress-relieved, but an applied straightening process ensures the bar is as straight as possible after extruding. Like 6061-T651, it offers high mechanical strength, stress corrosion resistance, and formability. It is commonly used in applications where precise flatness and straightness are required, such as in precision machinery and equipment.
Characteristics of alloy 6061:
Machinability = Good
Corrosion Resistance = Good
Weldability = Excellent
Bending/Forming = Fair
Magnetic = No
Heat Treatable = Yes
Common applications of alloy 6061:
- Aerospace: Aircraft components, including fuselages, wings, and structural parts.
- Automotive: Wheels, frames, suspension components, and engine parts.
- Structural applications.
- Production of sailboat, canoe, truck, and bus bodies.
- Scaffolding and transmission towers.
- Furniture.
- Marine fittings, hardware, boat hulls, and masts.
- Chemical equipment and hardware.
- Bike frames.
6063 / 6063-T5 Aluminum
Alloy 6063 is a heat-treatable aluminum alloy. It is a softer, more formable aluminum. Alloy 6063 offers good corrosion resistance. It is often used in architectural and structural applications. It is especially great in projects where the primary concern is for the final product to be lightweight and corrosion-resistant.
Alloy 6063-T5 is a temper condition indicating that it has been artificially aged after extrusion. The "-T5" temper provides improved mechanical properties compared to the as-extruded condition. It retains its excellent formability and corrosion resistance. This temper is commonly used in architectural and structural applications. Alloy 6063-T5 has been artificially aged for improved mechanical properties while retaining formability.
Characteristics of alloy 6063:
Machinability = Moderate
Corrosion Resistance = Good
Weldability = Excellent
Bending/Forming = Excellent
Magnetic = No
Heat Treatable = Yes
Common applications of alloy 6063:
- Architectural applications.
- Furniture: Frames, chairs, tables, and shelving.
- Automotive trim: Moldings and bumpers.
- Lighting fixtures and LED heat sinks.
- Railings and balustrades.
- Signage frames and structural components.
- Solar frames.
- Luggage racks.
- Irrigation tubing.
Finishes
What is a mill finish?
Mill finish means that items come to us exactly as they are finished at the mill. All materials can have some surface scuffs and scratches and may have a dull or matte finish.