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2618A

ASTM B221 / AlCu2Mg1.5Ni / 2618A / T6

化学性质 % 值
Silicon (Si)0,10 - 0,25
Manganese (Mn)0,00 - 0,25
Magnesium (Mg)1,30 - 1,80
Copper (Cu)1,90 - 2,70
Titanium (Ti)0,04 - 0,10
Iron (Fe)0,90 - 1,30
Zinc (Zn)0,00 - 0,10
Nickel (Ni)0,90 - 1,20
Aluminium (Al)Balance
物理特性
Density2.76 g/cm³
Melting Point549 °C
Thermal Expansion21.6 µm/m°C
Modulus of Elasticity71 GPa
Thermal Conductivity147 W/m.K
Electrical Resistivity37 % IACS
机械性能
Proof Strength350 MPa
Yield Strength420 MPa
Shear Strength260 MPa
Elongation A50 mm%6
Hardness120 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 T6 has the following standard designations and specifications.

Extruded Round/Flat Bar, Forgings and Tubes per; 2618A T6, ASTM B221, UNS A92618, DTD 717, DTD 5084A, ISO AlCu2Mg1.5Ni, WNR 3.1924, 

 

Choosing Factors for 2618A T6

  • Strength: High
  • Machining: Okay
  • Weldability: Weak
  • Formability: Okay
  • Corrosion Resistance: Mediocre
  • Heat Treating: Yes
 

Some Well-Known Applications for 2618A T6

In aircraft engines in the aerospace industry,

In autosports industry,

It has many areas of use, mainly in the defense industry.

 

SUPPLIED FORMS
 
2618A T6 is produced/supplied in round/flat bar and tube forms.
  • Round/Flat Bar
  • Tube/Profile
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