Aluminium Alloy 3105 Strips/Coils/Sheets/Plates/Bars/Pipes/Tubes/Extrusions

Chenmicial Composition

Silicon

0.6

Iron

0.7

Copper

0.3

Manganese

0.30-0.8

Magnesium

0.20-0.8

Chromium

0.2

Zinc

0.4

Titanium

0.1

Aluminum

balance

Other Elements (each)

0.05

Other Elements (total)

0.15

Mechanical Properties

Mechanical property requirements for strain hardened H12 temper (¼ hard) as specified in ASTM B209 and ASME SB209

Thickness (inch)

Yield Strength Min. (ksi)

Tensile Strength (ksi)

Elongation (%)
Min.

Min.

Max.

0.017 – 0.019

15

19

26

1

0.020 – 0.031

15

19

26

1

0.032 – 0.050

15

19

26

2

0.051 – 0.080

15

19

26

3

Mechanical property requirements for strain hardened H14 temper (½ hard) as specified in ASTM B209 and ASME SB209

Thickness (inch)

Yield Strength Min. (ksi)

Tensile Strength (ksi)

Elongation (%)
Min.

Min.

Max.

0.017 – 0.019

18

22

29

1

0.020 – 0.031

18

22

29

1

0.032 – 0.050

18

22

29

2

0.051 – 0.080

18

22

29

2

Physical Properties

Property

3105 Data

Density, lb/in3

0.0983

Modulus of Elasticity, psi

10.0 x 106

Coefficient of Thermal Expansion, 68-212˚F, /˚F

12.1 x 10-6

Thermal Conductivity, Btu/ft hr ˚F

99

Specific Heat, Btu/lb ˚F

0.214

Electrical Resistivity, Microohm-in

1.504