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2014

AMS QQ-A-200/2 / AlCu4SiMg / 2014 / T6

Chemical Properties % Value
Silicon (Si)0,50 - 0,90
Chromium (Cr)0,00 - 0,10
Manganese (Mn)0,40 - 1,20
Magnesium (Mg)0,20 - 0,80
Copper (Cu)3,90 - 5,00
Titanium (Ti)0,00 - 0,15
Iron (Fe)0,00 - 0,50
Zinc (Zn)0,00 - 0,25
Nickel (Ni)0,00 - 0,10
Aluminium (Al)Balance
Physical Properties Value
Density2.80 g/cm³
Melting Point505 °C
Thermal Expansion22.8 µm/m°C
Modulus of Elasticity72 GPa
Thermal Conductivity160 W/m.K
Electrical Resistivity%40 IACS
Mechanical Properties Value
Proof Strength424 MPa
Yield Strength493 MPa
Shear Strength290 MPa
Elongation A50 mm7%
Hardness140 HB
2014 T6 Temperature – Ultimate Tensile Strength Graph
2014 T6 Temperature – Ultimate Tensile Strength Graph
2014 T6 Thickness – Ultimate Tensile Strength Graph
2014 T6 Thickness – Ultimate Tensile Strength Graph
2014 T6 Diameter – Ultimate Tensile Strength Graph
2014 T6 Diameter – Ultimate Tensile Strength Graph
2014 T6 Diameter-Yield Tensile Strength
2014 T6 Diameter-Yield Tensile Strength
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2014-T6 aluminum alloy is a copper-based wrought aluminum alloy developed for engineering applications requiring high strength. This alloy provides very high mechanical strength especially due to the T6 temper, which is achieved through precipitation hardening. The 2014 alloy is widely used in aerospace and defense industries because of its high strength, good machinability, and fatigue resistance. However, due to its copper content, its corrosion resistance is lower compared with some other aluminum alloys, and surface protection methods are commonly applied.

The 2014-T6 alloy stands out with its high tensile and yield strength. Typically, the tensile strength of 2014-T6 is around 480 MPa, which makes it suitable for many structural applications. This strength level is noticeably higher than that of 6061-T6 alloy. However, 7075-T6 alloy can generally reach even higher strength values. The 2014 alloy provides a balanced combination of strong mechanical performance and good machinability between these alloys.

In terms of corrosion resistance, the 2014-T6 alloy does not perform as well as 5000-series and 6000-series aluminum alloys. For example, 5052 or 5083 alloys have significantly better corrosion resistance, especially in marine environments. Therefore, 2014 alloy is commonly used with surface protection treatments such as anodizing, painting, or protective coatings. It has good coatability and its service life can be improved significantly through hard anodizing or protective coatings.

From a machinability perspective, the 2014-T6 alloy offers significant advantages. It produces clean chips and stable cutting behavior during machining operations. Because of this property, it is widely used in the production of aircraft fasteners, precision machine parts, and high-strength mechanical components. However, its bendability in the T6 temper is limited, and softer tempers are generally preferred for forming operations requiring large deformation. In addition, its weldability is limited and mechanical fastening methods are often used instead.

In terms of vibration and fatigue behavior, the 2014-T6 alloy performs very well. Due to its high fatigue strength, it is used in structures exposed to high stress such as aircraft structural components, wing fittings, spacecraft parts, and defense systems. For example, 2024 alloy is also widely used in the aerospace sector, while 2014 alloy can provide better machinability and improved elevated-temperature performance in certain applications. Because of these characteristics, the 2014-T6 alloy is considered an important material for high-performance engineering applications.

ALLOY DESIGNATIONS

2014 T6 may be available in the following standards.
• 2014 T6 Plate; ASTM B209,ISO AlCu4SiMg,UNS A92014,AIR 9048.040
• 2014 T6 Sheet; ASTM B209,ISO AlCu4SiMg,UNS A92014,AIR 9048.040
• 2014 T6 Cold Drawn Round Bar; AMS 4121,AMS QQ-A-225/4,ASTM B211,UNS A92014,ASTM B928
• 2014 T6 Cold Drawn Flat Bar; AMS 4121,AMS QQ-A-225/4,ASTM B211,UNS A92014,ASTM B928
• 2014 T6 Cold Drawn Wire; AMS 4121,AMS QQ-A-225/4,ASTM B211,UNS A92014,ASTM B928
• 2014 T6 Cold Drawn Tube; AMS 4121,AMS QQ-A-225/4,ASTM B211,UNS A92014,ASTM B928
• 2014 T6 Extrusion Round Bar; AMS QQ-A-200/2,ASTM B221,UNS A92014,AMS 4153
• 2014 T6 Extrusion Flat Bar; AMS QQ-A-200/2,ASTM B221,UNS A92014,AMS 4153
• 2014 T6 Extrusion Wire; AMS QQ-A-200/2,ASTM B221,UNS A92014,AMS 4153
• 2014 T6 Extrusion Tube; AMS QQ-A-200/2,ASTM B221,UNS A92014,AMS 4153

 

Choosing Factors for 2014 T6

  • Strength: Very good
  • Machining: Very good
  • Weldability: Poor
  • Formability: Okay
  • Corrosion Resistance: Weak
  • Heat Treating: Yes
     

Some Well-Known Applications for 2014 T6
As a high-resistant material in aerospace,
As equipment material in the defense and military industry,
Automotive industry is also one of the areas where it is used.

 

SUPPLIED FORMS
2014 T6 is produced/supplied in plate/sheet, round/flat bar and tube/profile forms.
  • Plate/Sheet
  • Rod / Round Bar / Flat Bar
  • Tube/Profile
 
DELIVERY:
Mechanical Properties
Thickness (mm) Proof Strength (Min.) Yield Strength (Min.) Elongation A50 mm %
Over 25 up to & incl. 75 415 MPa 460 MPa %7
Over 150 up to & incl. 200 350 MPa 430 MPa %6
Over 200 up to & incl. 250 320 MPa 420 MPa %5