ALUMINUM 6061 TUBE AND PIPE PROPERTIES
Aluminum 6061 drawn tube and pipe roomtemperature material properties for T6/T4 tempers are shown in the results charts of the following calculator.
Calculator:
RESULTS 
Parameter 
Symbol 
Value 
Unit 
Specification 


Basis 


Temperature 
Roomtemperature 
Tensile Ultimate Strength 
F_{tu}, Longitudinal (L) 


ksi 
F_{tu}, Long Transverse (LT) 


Tensile Yield Strength 
F_{ty}, Longitudinal (L) 


F_{ty}, Long Transverse (LT) 


Compressive Yield Strength 
F_{cy}, Longitudinal (L) 


F_{cy}, Long Transverse (LT) 


Shear Ultimate Strength 
F_{su} 


Bearing Ultimate Strength 
e/D=1.5 
F_{bru} 


e/D=2.0 


Bearing Yield Strength 
e/D=1.5 
F_{bry} 


e/D=2.0 


Young's Modulus (Tension) 
E 


10^{3} ksi 
Young's Modulus (Compression) 
E_{c} 


Shear Modulus 
G 


Poisson's Ratio 
μ 


 
Density 
ω 


lb/in^{3} 
Note: e  edge distance (measured in the loading direction), D  diameter of the hole
Note: 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.
Note: Allowable stresses for welded structures are generally lower than
allowable stresses for the same material when not welded. The heat of welding
anneals the material around the weld so the strength of heattreated material is
reduced in this zone. Typical values for all forms of welded 6061T6 : F_{tu} : 24, F_{ty}: 20, F_{cy}: 20,
F_{su}: 15 , F_{sy}: 12, F_{bru}: 50 , F_{bry}: 30 (unit: ksi)
Definitions:
A Basis: The lower value of either the statistically calculated number T99, or the specification
minimum (Sbasis). 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: Svalues 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 6061: Properties of aluminum 6061 alloy
Aluminum 6061 Bar, Rod and Shapes: Material properties of aluminum 6061 rolled, drawn, coldfinished or extrusion rod, bar and shapes
Aluminum 6061 Plate and Sheet: Material properties of aluminum 6061 plate and sheet
Reference:

MMPDS01, Metallic Materials Properties Development and Standardization (2003)