MATERIAL 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 shown in the results chart for T6, T651, T73 and T7351 tempers. These properties are based on material properties charts of aluminum 7075 rod, bar and shapes which are given in MMPDS-01 (Metallic Materials Properties Development and Standardization).

Aluminum 7075 rod, bar and shapes material properties, which are given below, are tensile ultimate strength, tensile / compressive yield strengths, shear ultimate strength, bearing strength, Young's modulus, shear modulus, Poisson's ratio and density.

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.

RESULTS
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:

Aluminum 7075: Properties of aluminum 7075 alloy

Aluminum 7075 Plate and Sheet: Material properties of aluminum 7075 plate and sheet

Reference:

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