SPACE 2009
Quality Policy
AS 9120
Plates
Sheets
Rod/Round Bar/Flat Bar
Tube/Extrusions/Profile
7149
AMS 4343 / AlZn8MgCu(A) / 7149 / T73511
| Chemical Properties | % Value |
| Silicon (Si) | 0,00 - 0,40 |
| Chromium (Cr) | 0,10 - 0,22 |
| Manganese (Mn) | 0,00 - 0,20 |
| Magnesium (Mg) | 2,00 - 2,90 |
| Copper (Cu) | 1,20 - 1,90 |
| Titanium (Ti) | 0,00 - 0,10 |
| Iron (Fe) | 0,00 - 0,20 |
| Zinc (Zn) | 7,20 - 8,20 |
| Aluminium (Al) | Balance |
| Physical Properties | Value |
| Density | 2.84 g/cm³ |
| Melting Point | 477 °C |
| Thermal Expansion | 23.4 µm/m.°C |
| Modulus of Elasticity | 72 GPa |
| Thermal Conductivity | 155 W/m.K |
| Electrical Resistivity | %40 IACS |
| Mechanical Properties | Value |
| Proof Strength | 485 MPa |
| Yield Strength | 550 MPa |
| Shear Strength | 326 MPa |
| Elongation A50 mm | 12 % |
| Hardness | 86 HB |
The 7149 T73511 aluminum alloy is known for its high strength, excellent corrosion resistance, and machinability. The T73511 temper, achieved through heat treatment, provides the alloy with high hardness and durability. These properties make 7149 T73511 ideal for high-performance applications, particularly in industries such as aerospace, automotive, defense, and other demanding sectors. Additionally, 7149 T73511 aluminum is suitable for anodizing, which enhances the surface appearance while increasing its corrosion resistance, making it perfect for long-lasting performance in harsh environments such as outdoor and maritime applications.
In terms of weldability, 7149 T73511 aluminum alloy can be successfully welded using proper welding techniques. However, due to its high hardness and strength, welding requires careful handling. Proper heat treatment and welding methods are essential to ensure strong and reliable welds. Regarding bending, 7149 T73511 is more difficult to bend compared to more flexible alloys due to its high hardness. However, with the right machinery and techniques, shaping and bending can still be accomplished with care during the process.
The corrosion resistance of 7149 T73511 is exceptional, especially in harsh environments such as seawater, making it ideal for maritime and outdoor structural applications. Additionally, 7149 T73511 is suitable for use in high-vibration environments, making it advantageous for industries such as aerospace, automotive, and defense. Its high durability and long-lasting performance enhance the reliability of 7149 T73511 in these demanding applications.
The advantages of 7149 T73511 aluminum alloy include high mechanical strength, corrosion resistance, anodizing compatibility, weldability, and suitability for high-vibration environments. However, its high hardness and strength can create challenges during welding and bending processes. Additionally, this alloy may not be as easy to machine as more flexible alloys. Despite these challenges, 7149 T73511 is an excellent choice for industrial applications requiring high performance and durability.
Extruded Round/Flat Bars and Tubes per; 7149 T73511, ASTM B221, AMS 4343, UNS A97149, ISO AlZn8MgCu(A)
Choosing Factors for 7149 T73511
- Strength: Excellent
- Machining: Good
- Weldability: Poor
- Formability: Average
- Corrosion Resistance: Good
- Heat Treating: Yes
Some Well-Known Applications for 7149 T73511
In structural parts in the aviation industry.
It is also used in the defence and transportation industries.
- Round/Flat Bar
- Tube/Profile
| Mechanical Properties | |||
| Thickness (mm) | Proof Strength (Min.) | Yield Strength (Min.) | Elongation A50 mm % |
| Over 6.3 up to & incl. 12.6 | 462 MPa | 538 MPa | %9 |
| Over 12,7 up to & incl. 25,4 | 469 MPa | 538 MPa | %7 |
| Over 25,4 up to & incl. 50,8 | 462 MPa | 531 MPa | %6 |
| Over 50,8 up to & incl. 63,5 | 441 MPa | 524 MPa | %6 |
| Over 63,5 up to & incl. 76,2 | 421 MPa | 496 MPa | %5 |
| Over 76,2 up to & incl. 88,9 | 400 MPa | 490 MPa | %5 |
| Over 88,9 up to & incl. 101,6 | 372 MPa | 462 MPa | %3 |
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