ALUMINIUM ALLOYS - YIELD STRENGTH AND TENSILE STRENGTH


Aluminum yield strength, tensile strength and ductility values at room temperature are given in the following aluminum strength chart. Aluminum has typical tensile strength between 40 MPa to 700 MPa. The mechanical strength of aluminum can be increased by cold working and alloying. Copper, magnesium, silicon, manganese and zinc are used as alloying elements. Aluminum doesn't become brittle at low temperatures and retains its ductility.

Typical room temperature yield strength, tensile strength and ductility values for some of the aluminum alloys are given in the following chart.

Yield Strength, Tensile Strength and Ductility Values for Aluminum Alloys
Material Yield Strength Tensile Strength % Elong.
MPa (ksi) MPa (ksi)
Aluminum Alloy 1100 Annealed (O Temper) 34 (5) 90 (13) 40
Aluminum Alloy 1100 Strain hardened (H14 Temper) 117 (17) 124 (18) 15
Aluminum Alloy 2024 Annealed (O Temper) 75 (11) 185 (27) 20
Aluminum Alloy 2024 Heat Treated and aged (T3 Temper) 345 (50)  485 (70) 18
Aluminum Alloy 2024 Heat Treated and aged (T351 Temper) 325 (47) 470 (68) 20
Aluminum Alloy 6061 Annealed (O Temper) 55 (8) 124 (18) 30
Aluminum Alloy 6061 Heat Treated and aged (T6 and T651 Tempers) 276 (40) 310 (45) 17
Aluminum Alloy 7075 Annealed (O Temper) 103 (15) 228 (33) 17
Aluminum Alloy 7075 Heat Treated and aged (T6 temper) 505 (73) 572 (83) 11
Aluminum Alloy 356.0
As cast
124 (18) 164 (24) 6
Aluminum Alloy 356.0 Heat Treated and aged (T6 temper) 164 (24) 228 (33) 3.5

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