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2618A

ASTM B211 / AlCu2Mg1.5Ni / 2618A / T6511

Chemical Properties % Value
Silicon (Si)0,00 - 0,25
Tin (Sn)0,00 - 0,05
Manganese (Mn)0,00 - 0,20
Magnesium (Mg)1,20 - 1,80
Copper (Cu)1,80 - 2,70
Lead (Pb)0,00 - 0,05
Titanium (Ti)0,00 - 0,20
Iron (Fe)0,90 - 1,40
Zinc (Zn)0,00 - 0,15
Nickel (Ni)0,80 - 1,40
Aluminium (Al)Balance
Physical Properties Value
Density2.76 g/cm³
Melting Point535 °C
Thermal Expansion21.6 µm/m°C
Modulus of Elasticity70 GPa
Thermal Conductivity147 W/m.K
Electrical Resistivity36 % IACS
Mechanical Properties Value
Proof Strength372 MPa
Yield Strength441 MPa
Shear Strength262 MPa
Elongation A50 mm10%
Hardness115 HB

Aluminium Alloy 2618A (Aluminum 2618) is a high strength aluminium alloy. Alloy 2618 (2618A) has good machinability and is fair resistance to atmospheric attack. Aluminium Alloy 2618A (Aluminum 2618) is typically used in aerospace and defence components. It is commonly used for pistons and rotating aircraft parts due to it's ability to work in higher temperature applications. 2618 is also used in high performance autosport applications.

 

ALLOY DESIGNATIONS
 
2618A T6511 has the following standard designations and specifications.

As Extruded Round/Flat Bar and Tube; 2618A T6511, ASTM B221, UNS A92618, AIR 9048.150, ISO AlCu2Mg1.5Ni, WNR 3.1924, DTD 5014A

As Cold Drawn Round/Flat Bar and Tube; 2618A T6511, ASTM B211, UNS A92618, ISO AlCu2Mg1.5Ni, WNR 3.1924, EN 3553

 

Choosing Factors for 2618A T6511

  • Strength: High
  • Machining: Okay
  • Weldability: Bad
  • Formability: Good
  • Corrosion Resistance: Fair
  • Heat Treating: Yes
 

Some Well-Known Applications for 2618A T6511

In the engines and fuselages of aircraft,

In response to the needs of the high-tech industry,

It has a wide range of applications, including car pistons and gears.

 

SUPPLIED FORMS
 
2618A T6511 is produced/supplied in round/flat bar and tube forms.
  • Round/Flat Bar
  • Tube/Profile
DELIVERY:
Mechanical Properties
Thickness (mm) Proof Strength (Min.) Yield Strength (Min.) Elongation A50 mm %
Up to & incl. 10 Min 320 MPa Min 400 MPa %5
Over 10 mm up to & incl. 100 mm Min 340 MPa Min 420 MPa 5%