• Source: 2014 aluminium alloy

2014 aluminium alloy (aluminum) is an aluminium-based alloy often used in the aerospace industry.
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.
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.
Prior to the adoption of The Aluminum Association alloy designations in 1954, 2014 was known by the industry conventional designation "14S".




Chemical composition


The alloy composition of 2014 is:

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


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:

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


Typical material properties for 2014 aluminium alloy are:

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


2014 aluminium alloy is discussed in the following standards:

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






Further reading


"Properties of Wrought Aluminium and Aluminium Alloys: 2014, Alclad 2014". Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, Vol 2, ASM Handbook, ASM International, 1990, p. 67-68.




Aluminium alloy table

Kata Kunci Pencarian:

• Aluminium
• Inalum
• Duralumin
• Gajah Tunggal
• Skandium
• Kapal cepat rudal kelas Sampari
• Paduan titanium
• Kapal cepat rudal kelas Clurit
• Airbus A350
• Magnesium
• 2014 aluminium alloy
• Aluminium alloy
• 2024 aluminium alloy
• 6061 aluminium alloy
• Aluminium–copper alloys
• 6060 aluminium alloy
• 6082 aluminium alloy
• Aluminium–magnesium alloys
• 3003 aluminium alloy
• Aluminium–silicon alloys