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7475

AMS 4202 / AlZn5.5MgCu / 7475 / T7351

Chemical Properties % Value
Silicon (Si)0,00 - 0,10
Chromium (Cr)0,18 - 0,25
Manganese (Mn)0,00 - 0,06
Magnesium (Mg)1,90 - 2,60
Copper (Cu)1,20 - 1,90
Titanium (Ti)0,00 - 0,06
Iron (Fe)0,00 - 0,12
Zinc (Zn)5,20 - 6,20
Aluminium (Al)Balance
Physical Properties Value
Density2,81 g/cm³
Melting Point477 °C
Thermal Expansion23 µm/m.°C
Modulus of Elasticity71,7 GPa
Thermal Conductivity163 W/m.K
Electrical Resistivity%42 IACS
Mechanical Properties Value
Proof Strength425 MPa
Yield Strength510 MPa
Shear Strength300 MPa
Elongation A50 mm12%
Hardness135 HB
7475 T7351 Sheet / Plate aluminum alloy has high strength values and also high fracture toughness-fracture strength and high resistance to fatigue crack. 7475 T7351 sheet/plate is highly recommended for optimum level in stress corrosion resistance. Therefore, it is used mostly in difficult environmental condition applications, it is preferred particularly in aircraft design and which is an aluminum developed for such projects.

 

ALLOY DESIGNATIONS
 
EN 4457 7475 T7351 has similarities to the following standard designations and specifications ;
 

Plate as; AIR 9048.720, 3.4384,

AMS 4202 

Alloy 7475, UNS A97475

AlZn5.5MgCu,

 

MINIMUM FRACTURE TOUGHNESS VALUES FOR 7475 T7351:

 

                                                        KIc: ksi√in.(MPa√m)*
Temper              Thickness                  L-T            T-L

T7351           1.250-4.000 in.       41.0 (45.0)    34.0 (37.3)
                  (31.75-101.60 mm)

 

 

Choosing Factors for 7475 T7351:

 

  • Strength: Good
  • Machining: Moderate
  • Weldability: Weak
  • Formability: Normal
  • Corrosion Resistance: Average
  • Heat Treating:Yes
 
 

TEMPER TYPES

EN 4457 7475 is supplied in the following heat treatment types:

  • T7351
 
 
 
Some Well-Known Applications for 7475 T7351:
 
In  steam exhaust design at high temperatures.

In transport-logistic applications of aircraft.

Parts of vehicles in rail transport systems.

 
 
 
SUPPLIED FORMS
 
7475 T7351 is supplied in plate and sheet form.
 
  • Plate
  • Sheet
DELIVERY:
Mechanical Properties
Thickness (mm) Proof Strength (Min.) Yield Strength (Min.) Elongation A50 mm %
over 25.43 up to & incl. 38.10 414 MPa 490 MPa 9
over 50.83 up to & incl. 63.50 393 MPa 476 MPa 8
over 76.25 up to & incl. 88.90 365 MPa 448 MPa 8