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7178

ASTM B221 / AlZn7MgCu / 7178 / T6511

Chemical Properties % Value
Silicon (Si)0,00 - 0,40
Chromium (Cr)0,18 - 0,28
Manganese (Mn)0,00 - 0,30
Magnesium (Mg)2,40 - 3,10
Copper (Cu)1,60 - 2,40
Titanium (Ti)0,00 - 0,20
Iron (Fe)0,00 - 0,50
Zinc (Zn)6,30 - 7,30
Aluminium (Al)Balance
Physical Properties Value
Density2,83 g/cm³
Melting Point479 °C
Thermal Expansion23.5 x 10^-6 /K
Modulus of Elasticity71 GPa
Thermal Conductivity130 W/m.K
Electrical Resistivity31% IACS
Mechanical Properties Value
Proof Strength560 MPa
Yield Strength630 MPa
Shear Strength370 MPa
Elongation A50 mm5%
Hardness160 HB
7178 T6511 is a high strength aerospace aluminium alloy with good resistance to stress-corrosion cracking.
 
ALLOY DESIGNATIONS
 
7178 T6511 has the following standard designations and specifications.

As Cold Drawn Round/Flat Bar and Tube7178 T6511, UNS A97178, ASTM B211, ISO AlZn7MgCu, QQ-A-430

As Extruded Profile; 7178 T6511, AMS QQ-A-200/13, ASTM B221, SAE J454, UNS A97178, ISO AlZn7MgCu

 

Choosing Factors for 7178 T6511

  • Strength: Excellent
  • Machining: Poor
  • Weldability: Average
  • Formability: Okay
  • Corrosion Resistance: Okay
  • Heat Treating: Yes
 

Some Well-Known Applications for 7178 T6511

It is used in brake pads in the automotive industry,

In addition to the aerospace industry,

It is also used in the construction industry.

 

SUPPLIED FORMS
 
7178 T6511 is produced/supplied in round/flat bar and tube/profile forms.
  • Tube/Profile
  • Round/Flat Bar
DELIVERY: