6061 Aluminum Pipe

6061 aluminum pipe is very versatile and has a wide range of applications. Kloeckner Metals proudly stocks it across North America.

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General Info About Aluminum 6061

6061 aluminum pipe is known to be very versatile and it is used in a wide range of applications. It has excellent corrosion resistance, good machinability and workability. It also has a high strength-to-weight ratio and is therefore ideal for applications that are required to be light.

More Details About Aluminum 6061

  • Advantages/Disadvantages

    6061 aluminum pipe has excellent weldability, good machinability and workability, and is very versatile. It is also know to have a high strength-to-weight ratio and is very light. Therefore it is used in a wide range of applications.

  • Industries

    6061 aluminum pipe is used in a wide range of industries, including the aerospace, medical, aircraft, and structural industries.

  • Applications

    You will find 6061 aluminum pipe in railway car components, boats, bridge components, and pipe fittings.

  • Machining

    6061 has good machinability in the T6 temper. However, it is not as easy to machine when it is in the annealed condition.

  • Welding

    6061 has excellent weldability. Gas tungsten arc welding is the most common approach for thinner sections. Gas metal arc welding is recommended for heavier sections. While 4043 can be used for welding, T6’s mechanical properties may decrease.

  • Heat Treatment

    6061 aluminum pipe can be heat treated at 990°F. The piece will need enough time to be even, thoroughly heated, followed by quenching in water.

    Precipitation hardening can take place at 320°F for 18 hours. The process would be followed by air cooling, followed again by heating to 350°F and, again, air cooling.

Typical Standards

Tempers
T6
T6511

Chemical Properties of 6061

AlMgSiFeCuCrZnTiMnRemainder
95.85 - 98.56%0.8 - 1.2%0.40 - 0.8%0.0 - 0.7%0.15 - 0.40%0.04 - 0.35%0.0 - 0.25%0.0 - 0.25%0.0 - 0.15%0.05% each, 0.15% total

Mechanical Properties

TemperStrength PSIBrinell HardnessPoisson's Ratio
Ultimate Tensile StrengthYield StrengthBrinellRockwell
6061-T6511290 MPa or 45,000 KSI270 MPa or 40,000 KSI95B600.33
6061-T6310MPa or 42,000 KSI270 MPa or 39,000 KSI95B600.33

Frequently Asked Questions about Aluminum Bar 6061

  • What is the density of Aluminum 6061?

    ANSWER:

    Aluminum 6061 has a density of 2.7 g/cc (metric) or 0.0975 lb/in³ (imperial).

  • What is the thermal conductivity of aluminum 6061?

    ANSWER:

    The thermal conductivity, or diffusivity, of both aluminum 6061 tempers is 68 mm²/s (imperial) or 170 W/m-K.

  • What is the tensile strength of aluminum 6061?

    ANSWER:

    The tensile strength of aluminum 6061 depends on its temper.

    • T6: Ultimate tensile strength of 310 MPa or 45 PSI & tensile yield strength of 270 MPa or 39 PSI
    • T6511: Ultimate tensile strength of 290 MPa or 42 PSI & tensile yield strength of 270 MPa or 40 PSI
  • What is the difference between 6061-T6 and 6061-T6511?

    T6 and T6511 are both tempers, or variants, of 6061 aluminum. They have the same alloy composition, but have different mechanical properties are a result of their different processing. Some notable differences:

    • T6511 has slightly higher fatigue strength (100 vs. 96 MPa)
    • T6 has higher shear strength (210 vs 170 MPa)
    • T6 has higher ultimate tensile strength (310 vs. 290 MPa)

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