Resources
Strength in numbers
Aluminium Alloy | ASTM & FED-QQ
QQ-A-225/9 T7351 Bar
AerospaceQQ-A-225/9 T7351
Commercial7075
A high strength aerospace aluminium alloy offering good corrosion resistance.
Chemical Composition
|
SAE AMS QQ-A-225/9 Alloy QQ A 225/9 |
|
|---|---|
| Chemical Element | % Present |
| Aluminium (Al) | balance |
| Other (Each) | 0.05 max |
| Others (Total) | 0.15 max |
| Titanium (Ti) | 0.2 max |
| Chromium (Cr) | 0.18 - 0.28 |
| Manganese (Mn) | 0.3 max |
| Silicon (Si) | 0.4 max |
| Iron (Fe) | 0.5 max |
| Copper (Cu) | 1.2 - 2 |
| Magnesium (Mg) | 2.1 - 2.9 |
| Zinc (Zn) | 5.1 - 6.1 |
Temper Types
Alloy QQ-A-225/9 is supplied in a range of tempers:
- T651
- T7351
Supplied Forms
Alloy QQ-A-225/9 T651 is supplied in bar/rod
- Bar
Generic Physical Properties
| Physical Property | Value |
|---|---|
| Density | 2.81 g/cm³ |
| Melting Point | 635 °C |
| Thermal Expansion | 23.5 x10^-6 /K |
| Modulus of Elasticity | 72 GPa |
| Thermal Conductivity | 134-160 W/m.K |
| Electrical Resistivity | 40 % IACS |
Mechanical Properties
|
SAE AMS QQ-A-225/9 Bar - 12.7mm to 76.2mm |
|
|---|---|
| Mechanical Property | Value |
| Proof Stress | 386 Min MPa |
| Tensile Strength | 469 Min MPa |
| Elongation A50 mm | 10 Min % |
Mechanical Properties are for T7351 temper Bar in diameters 12.7mm to 76mm
