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7050

AMS 4050 / AlZn6CuMgZr / 7050 / T7451

化学性质 % 值
Silicon (Si)0,00 - 0,12
Chromium (Cr)0,00 - 0,04
Manganese (Mn)0,00 - 0,10
Magnesium (Mg)1,90 - 2,60
Copper (Cu)2,00 - 2,60
Titanium (Ti)0,08 - 0,21
Iron (Fe)0,00 - 0,15
Zinc (Zn)5,70 - 6,70
Aluminium (Al)Balance
Titanium + Zirconium (Ti+Zr)0,08 - 0,15
物理特性
Density2.83 g/cm³
Melting Point490 °C
Thermal Expansion22.1 µm/m.°C
Modulus of Elasticity71.7 GPa
Thermal Conductivity157 W/m-K
Electrical Resistivity35 % IACS
机械性能
Proof Strength479 MPa
Yield Strength540 MPa
Shear Strength310 MPa
Elongation A50 mm11%
Hardness140 HB
The 7050 T7451 aluminum alloy is known for its high strength, durability, and excellent corrosion resistance. As part of the aluminum-zinc alloy family, it is primarily used in aerospace, space, and military applications, particularly in high-performance structural components. The T7451 temper, achieved through specific heat treatments, provides the alloy with high durability and hardness while maintaining machinability. While it is suitable for anodizing, its high zinc content can present some challenges. In terms of weldability, it can be welded with proper techniques, but the high zinc content increases the risk of cracking during welding. The 7050 T7451 alloy performs well in bending and forming, though careful processing is required due to its high strength. It is also suitable for use in high-vibration environments, as its high durability and elastic modulus make it ideal for components such as engine parts and transport equipment. Its corrosion resistance makes it particularly suitable for maritime and other humid environments, but its drawbacks include welding challenges and limited performance under high temperatures.

 

ALLOY DESIGNATIONS
 
7050 T7451 has the following standard designations and specifications.
 
Plates per; 7050 T7451, EN 3982, AIR 9048.740, AMS 4050, WNR 3.4144, UNS A97050, ISO AlZn6CuMgZr
 
Extruded Round/Flat Bar and Wires and Tubes per; 7050 T7451, EN 3338, WNR 3.4144, UNS A97050, ISO AlZn6CuMgZr

 

Choosing Factors for 7050 T7451

  • Strength: Very good
  • Machining: Good
  • Weldability: Poor
  • Formability: Moderate
  • Corrosion Resistance: Excellent
  • Heat Treating: Yes
 

Some Well-Known Applications for 7050 T7451

It is used primarily in the aerospace industry,

Aircraft fuselage and wing parts,

It is also used in the nuclear industry.

 

SUPPLIED FORMS
 
7050 T7451 is produced/supplied in plate/sheet round/flat bar and tube/profile forms.
  • Rod / Round Bar / Flat Bar
  • Plate
  • Sheet
  • Tube/Profile
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