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7040

AIMS 03-02-023 / AlZn6Mg2Cu2 / 7040 / T7651

Chemical Properties % Value
Silicon (Si)0,00 - 0,10
Chromium (Cr)0,00 - 0,04
Manganese (Mn)0,00 - 0,04
Magnesium (Mg)1,70 - 2,40
Copper (Cu)1,50 - 2,30
Titanium (Ti)0,00 - 0,06
Iron (Fe)0,00 - 0,13
Zinc (Zn)5,70 - 6,70
Aluminium (Al)Balance
Titanium + Zirconium (Ti+Zr)0,05 - 0,12
Physical Properties Value
Density2.85 g/cm³
Mechanical Properties Value
Proof Strength400 MPa
Yield Strength450 MPa
Elongation A50 mm7%

Alloy 7040 is a variation of 7050, where Zr additions prevent recrystallization of hot-worked products during solution heat treatment without the quench sensitivity from additions of Cr.

7040-T7651 plates deliver an improved strength toughness balance compared to 7010 and 7050 alloys, and are ideal for structures needing high strength, high toughness, and good corrosion resistance, such as integrally machined spars, ribs, fuselage frames or other thick sections.

 

ALLOY DESIGNATIONS
 
7040 T7651 has the following standard designations and specifications.
 
Plates per; 7040 T7651, ISO AlZn6Mg2Cu2, UNS A97040, AMS 4211, AIMS 03-02-019, ASTM B209
 

Choosing Factors for 7040 T7651

  • Strength: Excellent
  • Machining: Good
  • Weldability: Poor
  • Formability: Fair
  • Corrosion Resistance: Good
  • Heat Treating: Yes
 

Some Well-Known Applications for 7040 T7651

Mainly in the aerospace industry,

As components of beams and fittings,

It is also used as components of integrally machined main frame parts.

 

SUPPLIED FORMS
 
7040 T7651 is produced/supplied in the plate form.
  • Plate
DELIVERY: