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7075

QQ-A-250/24 / AlZn5.5MgCu / 7075 / T7651

Chemical Properties % Value
Silicon (Si)0,00 - 0,40
Tin (Sn)0,00 - 0,00
Chromium (Cr)0,18 - 0,28
Manganese (Mn)0,00 - 0,30
Magnesium (Mg)2,10 - 2,90
Copper (Cu)1,20 - 2,00
Lead (Pb)0,00 - 0,00
Titanium (Ti)0,00 - 0,20
Iron (Fe)0,00 - 0,50
Zinc (Zn)5,10 - 6,10
Nickel (Ni)0,00 - 0,00
Aluminium (Al)Balance
Titanium + Zirconium (Ti+Zr)0,00 - 0,25
Physical Properties Value
Density2.81 g/cm³
Melting Point480 °C
Thermal Expansion23 x 10^-6 /K
Modulus of Elasticity71 GPa
Thermal Conductivity150 W/m.K
Electrical Resistivity%33 IACS
Mechanical Properties Value
Proof Strength470 MPa
Yield Strength590 MPa
Shear Strength320 MPa
Elongation A50 mm%8
Modulus of Elasticity71 GPa
Although 7075 T7651 Plate has similar mechanical values to 7075 T651, tensile corrosion resistance is increased compared to T651 and it is an aluminum alloy which is produced more resistant to exfoliation corrosion. It is preferred in thick plates. It is mostly preferred in expensive projects due to its long life time.

 

ALLOY DESIGNATIONS
 
7075 T7651 has similarities to the following standard designations and specifications ;

Plate and Sheet as; 7075 T7651, AMS QQ-A-250/24, 

ASTM B209, AIR 9048-710

 

Choosing Factors for 7075 T7651:

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

TEMPER TYPES

AMS QQ-A-250/24 7075 is supplied in the following heat treatment types:

  • T7651
 
 
Some Well-Known Applications for 7075 T7651:
 
In aerospace parts Which subject to high strength and stress

Special Fuel Tanks

Ship industry

 
 
SUPPLIED FORMS

7075 T7651 is supplied in plate and sheet form.
 
  • Plate
  • Sheet
DELIVERY:
Mechanical Properties
Thickness (mm) Proof Strength (Min.) Yield Strength (Min.) Elongation A50 mm %
over 12.7 up to & incl. 25.4 410 MPa 486 MPa 6
over 6.35 up to & incl. 12.7 418 MPa 491 MPa 8