6063 Aluminum Bar

One of the most popular alloys in the 6000 series, 6063 aluminum bar is known for its superior finish and is available from Kloeckner Metals nationwide in a variety of tempers.

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Typical Standards

GradeSizes Routinely Stocked
TemperThickness (Metric/Imperial)WidthLength
6063-T5Inquire for sizes
6063-T6Inquire for sizes

General Info About 6063 Aluminum Bar

Alloy 6063 is one of the most popular aluminum alloys in the 6000 series. It has a high-quality surface finish and is a good candidate for extrusions.

More Details About 6063 Aluminum Bar

  • Advantages/Disadvantages

    Aluminum 6063 has a number of advantages, namely good electrical conductivity, good extrudability, and a high-quality surface finish. When heat-treated, it offers good corrosion resistance. It can also be anodized in the T5, T52, T32, T54, and T6 tempers.

    Its main disadvantage is that it has a poor strength-to-weight ratio.

  • Industries

    6063 aluminum bar shows up in the architectural, building products, irrigation, appliance, and transportation industries.

  • Applications

    You will find 6063 aluminum bar in irrigation systems, heatsinks, electrical components, railings, furniture, door and window frames, and architectural and building products.

  • Machining

    6063 aluminum bar is considered to have good machinability.

  • Welding

    6063 can be welded with tungsten inert gas welding. After welding, you may find that the properties near the weld have lost strength. The piece can undergo heat treatment to restore a higher temper.

  • Heat Treatment

    Aluminum 6063 can be heat treated at 522°C (970°F) and quenched in water. This will result in the T4 temper. To produce other tempers, you can age the aluminum.

Chemical Properties

97.5% max0.10% max0.10% max0.35%0.45 - 0.90%0.10% max0.20 - 0.60% max0.10% max0.10% maxMax 0.05% Each; Max 0.15% Total

Mechanical Properties

GradeStrength (Metric/Imperial)Hardness
TemperUltimate Tensile Yield StrengthBrinell
6063-T5186 MPa/27,000 PSI 145 MPa/21,000 PSI 60
6063-T6 241 MPa/35,000 PSI214 MPa/31,000 PSI 73

Frequently Asked Questions

  • How does 6061 aluminum compare to 6063 aluminum?


    When it comes to aluminum bar, 6061 has excellent corrosion resistance, good workability, and good machinability. It is used for all types of fabrication projects including aerospace, medical assemblies, transportation, and structural components.

    In comparison, 6063 has superior corrosion resistance and a fine appearance and finish. Beyond their mechanical properties, 6063 is an attractive alternative to 6061. For that reason, you’ll find it in lightweight applications that require a superior finish in addition to corrosion resistance. It is a favorite for outdoor architectural trims.

  • What is the difference between 6063 T5 and 6063 T6?


    The main difference between T5 and T6 is strength. T6 is higher strength than T5. Otherwise, the performance is similar.

Services provided to 6063 Aluminum Bar products

Cut to Length

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Weld Prep

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Plasma Cutting

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Shot Blasting

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Industries served by 6063 Aluminum Bar


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