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7178

ASTM B211 / AlZn7MgCu / 7178 / T76510

Chemical Properties % Value
Silicon (Si)0,00 - 0,40
Chromium (Cr)0,18 - 0,28
Manganese (Mn)0,00 - 0,30
Magnesium (Mg)2,40 - 3,10
Copper (Cu)1,60 - 2,40
Titanium (Ti)0,00 - 0,20
Iron (Fe)0,00 - 0,50
Zinc (Zn)6,30 - 7,30
Aluminium (Al)Balance
Physical Properties Value
Density2,83 g/cm³
Melting Point477 °C
Thermal Expansion23.5 µm/m.°C
Modulus of Elasticity71 GPa
Thermal Conductivity140 W/m.K
Electrical Resistivity31 % IACS
Mechanical Properties Value
Proof Strength510 MPa
Yield Strength600 MPa
Shear Strength360 MPa
Elongation A50 mm7%
Hardness152 HB

The 7178 T76510 aluminum alloy is known for its high mechanical strength and excellent corrosion resistance. The T76510 temper, achieved through heat treatment, provides the alloy with high hardness and durability. These properties make 7178 T76510 ideal for high-performance applications, particularly in industries such as aerospace, automotive, and defense. Additionally, 7178 T76510 aluminum is suitable for anodizing, which enhances its surface appearance while increasing corrosion resistance, making it perfect for long-lasting performance in harsh environments such as outdoor and maritime applications.

In terms of weldability, 7178 T76510 aluminum alloy can be successfully welded using proper techniques. However, due to its high hardness and strength, welding requires careful handling. Proper heat treatment and welding methods must be applied to ensure strong, reliable welds. Regarding bending, 7178 T76510 is more difficult to bend compared to more flexible alloys due to its increased hardness, but it can still be shaped with the right machinery, although extra care is required during the bending process.

The corrosion resistance of 7178 T76510 is exceptional, especially in harsh environments like seawater, making it ideal for maritime and outdoor structural applications. Additionally, 7178 T76510 is suitable for use in high-vibration environments, which makes it advantageous in industries such as aerospace, automotive, and defense. Its high durability and long-lasting performance enhance the reliability of 7178 T76510 in these demanding applications.

The advantages of 7178 T76510 aluminum alloy include high mechanical strength, corrosion resistance, anodizing compatibility, weldability, and suitability for high-vibration environments. However, its high hardness and strength can present challenges during welding and bending processes. Additionally, this alloy may not be as easy to machine as more flexible alloys. Despite these challenges, 7178 T76510 is an excellent choice for industrial applications requiring high performance and durability.

 

ALLOY DESIGNATIONS
 
7178 T76510 has the following standard designations and specifications.

As Cold Drawn Round/Flat Bar and Tube7178 T6510, UNS A97178, ASTM B211, ISO AlZn7MgCu, QQ-A-430

As Seamless Cold Drawn Round/Flat Bar and Tube; 7178 T76510, ASTM B210, UNS A97178, ISO AlZn7MgCu

As Extruded Profile; 7178 T76510, ASTM B221, UNS A97178, ISO AlZn7MgCu, AMS QQ-A-200/13

 

Choosing Factors for 7178 T76510

  • Strength: Very good
  • Machining: Poor
  • Weldability: Fair
  • Formability: Okay
  • Corrosion Resistance: Good
  • Heat Treating: Yes
 

Some Well-Known Applications for 7178 T76510

In applications requiring high fatigue strength,

In the industries such as automotive, construction, aviation.

It is also used in aircraft bodies and cargo door fasteners.

 

SUPPLIED FORMS
 
7178 T76510 is produced/supplied in round/flat bar and tube/profile forms.
  • Tube/Profile
  • Round/Flat Bar
DELIVERY: