MECHANICAL PROPERTIES OF ALUMINUM 7075 BAR, ROD AND SHAPES

Aluminum 7075 alloy room-temperature material properties of rolled, drawn, or cold finished rod, bar and shapes are given for T6, T651, T73 and T7351 tempers.

INPUT PARAMETERS
Temper
Thickness* inch
 

Notes*:

  • For rolled, drawn, or cold-finished aluminum 7075; for round rod maximum diameter is 4 inches; for square bar, maximum size is 3½ inches; for rectangular bar, maximum thickness is 3 inches with corresponding width of 6 inches; for rectangular bar less than 3 inches in thickness, maximum width is 10 inches.
  • For extrusion aluminum 7075, the mechanical properties are to be based upon the thickness at the time of quench.

MECHANICAL PROPERTIES
Specification ---
Basis ---
Temperature Room-temperature
Tensile Ultimate Strength, Ftu Longitudinal (L) --- ksi
Long Transverse (LT) ---
Short Transverse (ST) ---
Tensile Yield Strength, Fty Longitudinal (L) ---
Long Transverse (LT) ---
Short Transverse (ST) ---
Compressive Yield Strength, Fcy Longitudinal (L) ---
Long Transverse (LT) ---
Short Transverse (ST) ---
Shear Ultimate Strength, Fsu ---
Bearing Ultimate Strength, Fbru e/D=1.5 ---
e/D=2.0 ---
Bearing Yield Strength, Fbry e/D=1.5 ---
e/D=2.0 ---
Young's Modulus (Tension), E --- 103 ksi
Young's Modulus (Compression), Ec ---
Shear Modulus, G ---
Poisson's Ratio, μ --- -
Density, ω --- lb/in3

Notes:

  • e - edge distance (measured in the loading direction), D - diameter of the hole.
  • In those instances where the direction in which the material will be used is not known, the lesser of the applicable longitudinal or transverse properties should be used.
  • Caution - 7075-T6/T651 rolled, drawn, or cold-finished bar, rod, and shapes exhibit poor stress-corrosion cracking resistance in LT grain direction.
  • Caution - 7075-T6/T6510/T6511, extrusion bar, rod, and shapes exhibit poor stress-corrosion cracking resistance in ST grain direction.

Definitions:

A Basis: The lower value of either the statistically calculated number T99, or the specification minimum (S-basis). T99 indicates that at least 99 percent of the population is expected to equal or exceed the statistically calculated mechanical property value with a confidence of 95 percent.

S Basis: S-values are minimum values given in the material specifications and standards. Their statistical bases are not defined.

Longitudinal Direction: Direction parallel to the flow in a worked material (grain direction).

Long Transverse: Transverse direction having the largest dimension (width direction).

Short Transverse: Transverse direction having the smallest dimension (thickness direction)

Solution heat treatment: Heating the alloy to a suitable temperature, waiting at that temperature long enough to allow constituents to dissolve and rapid cooling to hold the constituents in solution.

Modulus of elasticity (Young’s modulus): The rate of change of unit tensile or compressive stress with respect to unit tensile or compressive strain for the condition of uniaxial stress within the proportional limit.

Poisson’s ratio: The ratio of lateral unit strain to longitudinal unit strain under the condition of uniform and uniaxial longitudinal stress within the proportional limit.

Shear stress: A form of a stress acts parallel to the surface (cross section) which has a cutting nature.

Stress: Average force per unit area which results strain of material.

Supplements:

Reference:

  • MMPDS-01, Metallic Materials Properties Development and Standardization (2003)