7178

EN AW / AlZn7MgCu / 7178 / T7651

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 Point477 °C
Thermal Expansion23.5 µm/m°C
Modulus of Elasticity71 GPa
Thermal Conductivity140 W/m.K
Electrical Resistivity40 % IACS
Mechanical Properties Value
Proof Strength503 MPa
Yield Strength572 MPa
Shear Strength340 MPa
Elongation A50 mm%10
Hardness135 HB
7178 T7651 aluminum exhibits high strength and is widely used in aerospace applications.

 

ALLOY DESIGNATIONS
 
7178 T7651 has the following standard designations and specifications.

As Plate/Sheet; 7178 T7651, ASTM B209ISO AlZn7MgCu, UNS A97178, AMS QQ-A-250/14 

 

Choosing Factors for 7178 T7651

  • Strength: Excellent
  • Machining: Low
  • Weldability: Mediocre
  • Formability: Okay
  • Corrosion Resistance: Okay
  • Heat Treating: Yes
 

Some Well-Known Applications for 7178 T7651

It is used in high strength fasteners in the aerospace industry,

It is also used in the skins of aircraft wings,

It is also used in the construction industry.

 

SUPPLIED FORMS
 
7178 T7651 is produced/supplied in plate/sheet forms.
  • Plate
  • Sheet
DELIVERY: