3105 Aluminum Sheet

3105 aluminum sheet is a 98% aluminum alloy with minor additions for improved strength. It is routinely stocked nationwide across our network of 40+ branches.

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Typical Standards

GradeSizes Routinely Stocked
TemperThickness (Metric/Imperial)WidthLength
3105-OInquire for sizes
3105-H22Inquire for sizes
3105-H24Inquire for sizes
3105-H26Inquire for sizes
3105-H28Inquire for sizes

General Info About 3105 Aluminum Sheet

3105 aluminum sheet is 98% pure aluminum with the addition of specific alloys for strength improvement. This alloy can’t be hardened by heat treatment. It has excellent weldability, formability, and corrosion resistance.

More Details About 3105 Aluminum Sheet

  • Advantages/Disadvantages

    It has excellent corrosion resistance and formability. On the other hand, it is not heat-treatable.

  • Industries

    Typically, this aluminum grade is used for the manufacturing of residential siding, rain carrying goods, and mobile homes.

  • Machining

    The use of oil lubricants is recommended when machining this aluminum grade.

  • Welding

    It has excellent weldability.

  • Heat Treatment

    It is not heat-treatable except for annealing during cold welding.

Chemical Properties

SiFeCuMnMgCrZnTi
0.60%0.70%0.30%0.30-0.80%0.20-0.80%0.20%0.40%0.10%

Mechanical Properties

GradeStrength (Metric/Imperial)Elongation
TemperUltimate Tensile Strength (min - max)Ultimate Yield Strength% at 50mm
3105-O110-155 MPa / 15,194 - 22,480 psi-16
3105-H12130-175 MPa / 18,854 - 25,381 psi115 MPa / 16,679 psi2
3105-H14160-205 MPa / 23,206 - 29,732 psi145 MPa / 21,030 psi2
3105-H16185-230 MPa / 26,831 - 33,358 psi170 MPa / 24,656 psi1
3105-H18215 MPa / 31,183 psi190 MPa / 27,557 psi1

Frequently Asked Questions

  • What is the difference between 3003 H14 vs 3105 H24?

    ANSWER:

    There are a couple differences between 3003 H14 and 3105 H24. One of them is the Brinell Hardness; 3003 H14 has 42 BHN and 3105 H24 has 47 BHN. Another difference is the Fatigue Strength; 3003 H14 has only 60 MPa, whereas 3105 H24 has 74 MPa. In the alloy composition, 3003 H14 contains more Magnesium than 3105 H24. But 3105 H24 contains a little bit of Titanium, Chromium and Copper that 3003 H14 does not have.

  • What are the specifications of 3105 H24 aluminum?

    ANSWER:

    3105 H24 aluminum has a yield strength of 152 MPa and ultimate tensile strength of 179 MPa.

  • What are the specifications of 3105 H14 aluminum?

    ANSWER:

    3105 H14 aluminum has a yield strength of 152 MPa and a tensile strength of 172 MPa.

  • What is 3105 painted aluminum sheet?

    ANSWER:

    3105 painted aluminum sheet is an alloy that contains 1.2% manganese to increase the strength over pure aluminum. Painted aluminum sheet is specifically designed so that it offers a hard, abrasive resistance coat, but also gives alloy flexibility for forming and fabricating. 3105 painted aluminum is often used for sign making, mobile homes, residential siding, and in sheet metal work.

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