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7040

AMS 4211 / AlZn6Mg2Cu2 / 7040 / T7451

Chemical Properties % Value
Silicon (Si)0,00 - 0,10
Chromium (Cr)0,00 - 0,04
Manganese (Mn)0,00 - 0,04
Magnesium (Mg)1,90 - 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-T7451 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 T7451 has the following standard designations and specifications.
 
Plates per; 7040 T7451, ISO AlZn6Mg2Cu2, UNS A97040, AMS 4211, AIMS 03-02-019, ASTM B209
 

Choosing Factors for 7040 T7451

  • Strength: Very good
  • Machining: Satisfactory
  • Weldability: Weak
  • Formability: Fair
  • Corrosion Resistance: Good
  • Heat Treating: Yes
 

Some Well-Known Applications for 7040 T7451

Mainly in the aerospace industry,

As fuselage components,

And it is also used in cockpit window frames.

 

SUPPLIED FORMS
 
7040 T7451 is produced/supplied in the plate form.
  • Plate
DELIVERY: