2014_aluminium_alloy Knowpia

2014 aluminium alloy (aluminum) is an aluminium-based alloy often used in the aerospace industry.^[1]

It is easily machined in certain tempers, and among the strongest available aluminium alloys, as well as having high hardness. However, it is difficult to weld, as it is subject to cracking.^[2]

2014 is the second most popular of the 2000-series aluminium alloys, after 2024 aluminium alloy. It is commonly extruded and forged. The corrosion resistance of this alloy is particularly poor. To combat this, it is often clad with pure aluminium. If unclad 2014 aluminium is to be exposed to the elements, it should be painted as a corrosion protection measure.^[3]

Prior to the adoption of The Aluminum Association alloy designations in 1954, 2014 was known by the industry conventional designation "14S".^[4]

Chemical composition edit

The alloy composition of 2014 is:^[2]

Aluminium: Remainder
Chromium: 0.1% max
Copper: 3.9% - 5%
Iron: 0.7% max
Magnesium: 0.2% - 0.8%
Manganese: 0.4 - 1.2%
Remainder: Each 0.05% max
Remainder: Total 0.15% max
Silicon: 0.5% - 1.2%
Titanium: 0.15% max
Titanium + Zinc: 0.2% max
Zinc: 0.25% max

2014A Aluminium Alloy edit

2014A is an alloy of aluminium that is very similar (but not entirely identical) to 2014. Because of the naming similarity, the two can be confused. The alloy composition of 2014A is:^[1]

Aluminium: Remainder
Chromium: 0.1% max
Copper: 3.9% - 5%
Iron: 0.5% max (versus 0.7 for 2014)
Magnesium: 0.2% - 0.8%
Manganese: 0.4 - 1.2%
Remainder: Each 0.05% max
Remainder: Total 0.15% max
Silicon: 0.5% - 0.9% (versus 0.5-1.2 for 2014)
Titanium: 0.15% max
Titanium + Zinc: 0.2% max
Zinc: 0.25% max

Properties edit

Typical material properties for 2014 aluminium alloy are:^[5]

Density: 2.80 g/cm³, or 175 lb/ft³.
Young's modulus: 73 GPa, or 11 Msi.
Electrical conductivity: 34 to 50% IACS.
Ultimate tensile strength: 190 to 480 MPa, or 28 to 70 ksi.
Thermal Conductivity: 130 to 190 W/m-K.
Thermal Expansion: 23 μm/m-K.

Standards edit

2014 aluminium alloy is discussed in the following standards:^[5]

ASTM B 209: Standard Specification for Aluminium and Aluminium-Alloy Sheet and Plate
ASTM B 210: Standard Specification for Aluminium and Aluminium-Alloy Drawn Seamless Tubes
ASTM B 211: Standard Specification for Aluminium and Aluminium-Alloy Bar, Rod, and Wire
ASTM B 221: Standard Specification for Aluminium and Aluminium-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

References edit

^ ^a ^b "Datasheets - Aluminium Alloy - BS-L - L168 T6511 - 2014A Bar | Smiths Metals Ltd". Archived from the original on 2019-09-20. Retrieved 2012-11-27.
^ ^a ^b "2014 Aluminum Material Property Data Sheet - Product availability and request a quote".
^ Marks' Standard handbook for Mechanical Engineers, 8th Ed., McGraw Hill, pp. 6-50 to 6-56
^ Oberg, Erik; et al. (2004). Machinery's Handbook (27th ed.). Industrial Press Inc. p. 578. ISBN 978-0-8311-2700-8.
^ ^a ^b 2014 (3.1255, H15, A92014) Aluminum. Retrieved on 2014-12-01.

Aluminium alloy table edit

[Wilson-1] "Datasheets - Aluminium Alloy - BS-L - L168 T6511 - 2014A Bar | Smiths Metals Ltd". Archived from the original on 2019-09-20. Retrieved 2012-11-27.

[autogenerated1-2] "2014 Aluminum Material Property Data Sheet - Product availability and request a quote".

[3] Marks' Standard handbook for Mechanical Engineers, 8th Ed., McGraw Hill, pp. 6-50 to 6-56

[4] Oberg, Erik; et al. (2004). Machinery's Handbook (27th ed.). Industrial Press Inc. p. 578. ISBN 978-0-8311-2700-8.

[makeitfrom-5] 2014 (3.1255, H15, A92014) Aluminum. Retrieved on 2014-12-01.

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